FCC ID: HNL-WRX Computer Controlled Scanning Reciever

W R - 3 7 0 0 s e r i e s Users Guide WR-3700 Series Users Guide Introduction Designed for government, military, security, surveillance and industrial applications, WiNRADiO Spectrum Monitor puts advanced radio receiver technology directly on a personal computer platform to create a high-performance PC-based spectrum surveillance and monitoring system. This synergy of advanced radio and computing technology provides the WiNRADiO Spectrum Monitor with many unique features which are hard to find on the usual stand-alone communications radio receiver. These features include a rich variety of flexible tuning and scanning options, versatile memory and database facilities, the ability to digitally process the received signal, as well as the ability to interact with other programs running on the same PC. All this is controlled through an innovative user interface, unparalleled in sophistication and ease of use. The internal version (WR-3700i-DSP) conserves valuable desk-top space, and avoid the need for external cables and power supplies. It also have the advantage of not requiring any additional interface ports, as all communication with the PC is via the internal PC bus. A dedicated DSP (Digital Signal Processor) is used for real-time audio compression and playback, and can be expanded to include other real-time signal processing functions tailored to the user's particular requirements. Multi-channel operation is simple to achieve, as up to eight WiNRADiO internal receivers can be used simultaneously in the one PC. The external version (WR-3700e) can be controlled through an RS-232 serial interface, or the optional plug-and-play PCMCIA interface. The PCMCIA interface allows quick and simple connection to any laptop PC, providing complete portability for vehicle or field use. The external versions can be powered by the plug-pack (supplied), or from the optional WR-

PPS battery pack with inbuilt charger. The external model also include a direct discriminator output, for optimum reception of packet and other digitally modulated signals. The informative control panel displayed by the WiNRADiO Spectrum Monitor includes a number of ground-breaking features, designed to empower the user with a multitude of tuning and scanning capabilities especially tailored for surveillance applications. One of the most significant features is VisiTune, a patented feature allowing the operator to graphically tune within a dynamically-changing spectrum screen representing the actual situation on the monitored band. Add to this the fact that WiNRADiO Spectrum Monitor features an automatic task scheduler which can be programmed for unsupervised operation, search for specific types of signals and even make decisions based on the specified circumstances, and you will find that WiNRADiO Spectrum Monitor represents an invaluable tool, making radio surveillance easier and much more efficient and reliable. Registration Information To be informed about any new products or software upgrades, please register using the Web site closest to your location:

North America www.winradio.com/home/register.htm Europewww.winradio.co.uk/home/register.htm Australia/Asia www.winradio.net.au/home/register.htm Comments and suggestions are welcome, and can also be made from these sites. Be sure to visit out Web site from time to time, and watch for new software upgrades and options as they become available. 2 WR-3700 Series Users Guide Installation The WiNRADiO internal version package contains the following items:

WiNRADiO receiver card The WiNRADiO external version package contains the following items:

WiNRADiO receiver unit RS-232 cable Power adaptor PC Card Adaptor option (if ordered) Portable Power Source option (if ordered) Both packages include the following items:

WiNRADiO software installation disk Indoor test antenna This Users Guide The manufacturers warranty information Any software option (such as the WiNRADiO Digital Suite or Database Manager), if ordered Note that you must supply your own antenna for optimum reception. In order for your WiNRADiO receiver to function, your IBM PC compatible computer must meet the minimum system requirements specified below. System Requirements Minimum 386 Processor:

4 MB RAM:

VGA Display OS: Windows 3.1 Spare serial port or PCMCIA socket for the external model, or a spare ISA slot for the internal model. Recommended Pentium or higher 16 MB or more SVGA: at least 800x600, 256 colours Windows 95, 98 or NT 4 3700i Hardware Installation 1. If your computer is on, shut down the computer first, turn it off and disconnect the power cord. 2. Remove the computer cover. 3. If other expansion cards are fitted, check their address assignments. If necessary, change any of the jumpers on the WiNRADiO receiver card to avoid conflicts. (The default I/O port 180, IRQ 10 and DMA 0 should normally work, however if you need to change any jumpers, see the following section about Jumper Settings.) 4. Choose an empty 16-bit expansion slot, preferably with an empty slot immediately to the right (assuming you are facing the computer front). Important: Before inserting the WiNRADiO card, touch the computer metalwork with your hand (to drain any static charge from your body), and also touch the metal bracket on the WiNRADiO card. 5. 3 WR-3700 Series Users Guide 6. Carefully insert the card into the vacant slot, and push until it is firmly seated. Screw the metal bracket at the end of the card to the computer case (this must be done to minimise ground-conducted interference). 7. Replace the computer case and reconnect the power cord. 8. Plug a speaker or headphones into the audio jack at the rear of the card. Alternatively, if you have a sound card and wish to route WiNRADiO through it, you can plug an audio patch cable from the audio jack to the Line In jack on your sound card. Note that a 3.5mm stereo plug must be used, otherwise you will hear no audio from the receiver. A suitable patch cable is included with the WiNRADiO Digital Suite option. 9. Connect the antenna to the BNC jack at the rear of the card and extend the antenna up and as far away from the computer as possible. 10. If you have a plug-and-play computer, you may have to configure the BIOS under

'PNP/PCI CONFIGURATION' to set the appropriate IRQ and DMA to 'Legacy ISA'

instead of 'PCI/ISA PnP' to avoid conflicts with any plug-and-play devices in your computer. You should also make sure that any PCI IRQs are not the same as WiNRADiO's. Jumper Settings The WiNRADiO receiver card is provided with jumpers which select the desired I/O port address. The jumper may need to be changed from the factory default settings to avoid conflicts with other cards already installed in the computer. There are eight possible I/O addresses which the WiNRADiO card can use: 180, 188, 190, 198, 1A0, 1A8, 1B0 and 1B8 (all specified in hexadecimal). There are also 8 different IRQs:

3, 5, 7, 9, 10, 11, 12 and 15, and 2 DMA channels: 0 and 3. The factory default is I/O port 180, IRQ 12 and DMA 0. If more than one WiNRADiO card is to be installed in the computer (up to 8 depending on available address lines), each card must be assigned a unique I/O address and IRQ. The DMA channels can be shared, all eight are able to run on one DMA channel, but it is recommended to evenly distribute the cards DMA settings across the two channels if possible. Some of the WiNRADiO IRQs can be used by other devices, for example: IRQ 3 is normally used for COM2, 5 for a sound card, 7 for an EPP or ECP printer port, 9 for a video card, 10 for a network card, 11 for a SCSI card, 12 for a PS/2 mouse port and 15 for the secondary IDE port. If you wish to use any of these interrupts, make sure that either these devices dont exist, or disable them. 4 WR-3700 Series Users Guide 3700e Hardware Installation 1. First install the software (see below). 2. Connect the supplied power adaptor to the +12V DC power socket on the rear of the unit, and switch the unit on. 3. Connect the supplied RS-232 (or optional PC Card Adaptor) cable between the computer and the WiNRADiO unit. 4. Connect the antenna to the BNC connector at the rear of the unit, and extend the antenna up and as far away as possible. Software Installation 1. 2. Insert the WiNRADiO installation disk into your floppy drive. If you are using Windows 95, 98 or NT 4, click on the Run command in the Start menu. If you are using Windows 3.1x or NT 3.5x, Click on the Run command in the File menu in Program Manager or File Manager. 3. Type A:\INSTALL (or B:\INSTALL if your floppy drive is B). 4. After the Welcome dialog box and Licence agreement, you will be prompted to enter a directory to install the WiNRADiO software. You can either choose to accept the default, or you may enter your own. 6. 5. The installation will then proceed to install the necessary files onto your hard disk. You will then be asked whether you want to add an icon to Windows. If you accept, you will then be asked which program group to add the icon to. If this is the first installation in Windows 3.1x, 95 or 98, you will then be asked to restart Windows. The WiNRADiO receiver will not work until Windows has been restarted. In Windows NT, a hardware configuration utility will pop up allowing you to specify the hardware settings for the software (see the next section I/O Configuration for more details). WiNRADiO software is periodically upgraded. Check out the newest software version on our Web site at www.winradio.com. If you wish to be automatically notified of upgrades and other WiNRADiO related information, please register with our user database by sending an e-mail message with subject heading REGISTER to support@winradio.com. 5 WR-3700 Series Users Guide I/O Configuration To inform the software of the hardware configuration, a Control Panel applet is used. Open Control Panel and double-click on the WiNRADiO icon. A dialog box will appear, which allows you to specify the hardware configuration for the software. Windows 3.1, 95 and 98 As can be seen, up to 8 internal cards can be configured, and for each card installed, a suitable I/O address must be nominated. In most situations, you can use the Auto Detect feature, which will allow the software to find all the internal cards and the IRQ and DMA settings for each. Only rare circumstances stop the auto-detection from working. If there are any problems with the settings (such as an address conflict), you will be notified of the problem. After you click on OK and any setting has been changed, you will be prompted to restart Windows for the new settings to take effect. Windows NT Up to 9 receivers (internal and external) can be configured, and for each receiver installed, its location must be nominated. In most situations you can use the Auto Detect feature, which will allow the software to find all internal I/O ports, serial ports (must be switched on) and PC Card slots a receiver is connected to. Note it will not detect the IRQ or DMA settings for the internal receivers but will detect the presence of the DSP. An optional fifth field is provided that allows you to specify a name to be associated with the receiver. The name will appear in the title of the main window instead of the traditional WiNRADiO Spectrum Monitor # title. After you click on OK, the new settings take immediate effect. Uninstalling WiNRADiO In Windows 95, 98 and NT 4, start up Control Panel and double-click on the Add/Remove Programs icon. Select WiNRADiO from the list and click on the Add/Remove button. In Windows 3.1x and NT 3.5x, double-click on the Uninstall WiNRADiO icon in the program group that contains the WiNRADiO icon. All software and changes to any configuration files will be removed from your hard disk. 6 WR-3700 Series Users Guide Troubleshooting Installation Problems If you try to start-up your WiNRADiO receiver for the first time and you are presented with a dialog box stating that the WiNRADiO receiver card could not be found, you most likely have a configuration problem. If you are using an internal WiNRADiO model, open the WiNRADiO configuration utility from Control Panel by double-clicking on it. Click on Auto Detect. If no WiNRADiO card can be found, then you probably have a hardware address conflict. Shut down the computer, and try other jumper settings as described earlier in this chapter. Start up the computer and try auto-detecting again. If you are using an external WiNRADiO model, make sure it is plugged in and the power is turned on (the red LED on the front panel should be illuminated). If you are using the WiNRADiO software and find that the Spectrum Scope is obscuring the panel, try to reposition the main WiNRADiO control panel window by changing it from full-

screen to a window, and positioning it in the top area of the screen. Shrink the size vertically so there is a thin border around the panel. This should make your WiNRADiO receiver easier to use. If you are finding that shortcut keys are not responding (including the tab and cursor keys), try clicking on the appropriate window with the mouse to activate the window. If you have more than one dialog box open at the same time, try closing them until only one is left open. Sensitivity Problems The WiNRADiO receiver is very sensitive, so low sensitivity problems are usually due to noise induced into the antenna by the PC monitor, less commonly the PC, or some other external source. If the noise is strong enough, it can overload the receiver which responds by automatically reducing sensitivity using its AGC (Automatic Gain Control) mechanism. This problem is more common on low frequencies (under 30MHz). As a result, the reception can become noisy and the receiver appears to be deaf. This can happen if the antenna is poorly located, for instance if it is too close to the PC monitor, or used inside a building with steel-reinforced concrete walls. Try repositioning the antenna, or placing ferrite cores over its shielded lead close to the receiver, to break the transmission of interference back to the antenna. Another remedy which is often effective is to place an RF (radio frequency) filter between the PC mains lead and the wall power outlet, to reduce interference caused by earth loops. If these measures fail to produce the desired noise reduction , and if you are using an internal receiver model, try moving the receiver card to a different slot inside the PC, as far as possible from other potentially noisy cards, especially the video card, and the power supply. Video monitors are also major sources of interference, and there are significant differences between brands in this respect. You can establish the noise contribution of your monitor by switching it off. If the noise diminishes substantially, check that the monitor lead is fitted with a ferrite suppressor bead (the rectangular or cylindrical moulding on the lead). If not, fit a suppressor, or acquire a quieter monitor. 7 WR-3700 Series Users Guide Intermodulation Problems Your WiNRADiO receiver has been designed to be very sensitive in order for it to work with the moderately small antennas which are preferable for VHF/UHF. In areas with strong local broadcast stations, the WiNRADiO receiver front-end may overload and, as a result, intermodulation products may appear in the received band. By pressing the Local button on the control panel, the interference products will disappear. It is advisable to use the Local setting if you are operating the receiver with larger outdoor antennas, especially on broadcast bands. For long-distance shortwave reception, a considerable improvement can be obtained by using a tuned antenna and preselector. 8 WR-3700 Series Users Guide Using WiNRADiO When you first start WiNRADiO, you are presented with a radio receiver interface. The image below shows the main parts of the control panel. The following few sections document each of the parts in detail. Basic Controls Frequency Readout The frequency readout shows the current receiver frequency. Below this is another display which shows one of the following:

the callsign and/or a comment relating to the current tuned frequency, taken from the frequency memory (entered by the user), or the description of the current band. The band description is user-definable under Auto-stepping in the Configure menu. To enter a frequency, simply type the desired frequency using the keyboard. As soon as you press a number or the decimal point, the frequency readout will enter the edit mode, allowing you to enter the frequency. The old frequency is automatically overwritten. If you want to edit the existing frequency, click on the readout with the left mouse button to highlight the current frequency, position the cursor as desired, reclick the left mouse button, make the desired changes, then press the Enter key. To change the frequency unit (kHz, MHz or GHz), press K, M or G respectively while the display is highlighted or in edit mode. To tune the receiver to the new frequency, press the Enter key. To cancel and return the previous display, press the Escape key. In each mode, the frequency readout only displays the most significant digits which affect tuning and reception. The display resolution is as follows: 1 Hz in CW, LSB and USB, 10 Hz in FMN, 100 Hz in AM and 1 kHz in FMW. In FMW, the lowest tunable frequency is 30 MHz. If you attempt to tune to a frequency below 30 MHz, the receiver will automatically change the mode to AM, and disable the FMW button. Tuning Knob The tuning knob adjusts the frequency by the smallest suitable increment for the current mode. In LSB, USB and CW it is 10 Hz; AM is 100 Hz; FMN is 500 Hz, and FMW is 50 kHz. To use the knob, position the mouse cursor over the top half of the knob, and the cursor will look like this: . To decrease the frequency, click the left 9 WR-3700 Series Users Guide mouse button. To increase the frequency, click the right mouse button. On the bottom half, the cursor will flip vertically . The mouse buttons will now operate in reverse, with the left increasing and the right decreasing the frequency. To tune the receiver from the keyboard, press the up/down cursor keys to increase and decrease the frequency respectively. For faster tuning, use the Shift or Ctrl keys simultaneously with the mouse or keyboard tuning commands to multiply the frequency step by 10 or 100 times respectively. To reduce the step size to 1 Hz for more accurate tuning of LSB, USB or CW, use the Alt key simultaneously with the mouse or keyboard tuning commands. Modes WiNRADiO WR-3700 series supports eight different reception modes (CW, LSB, USB, AM, FMN, FMN2, FMN3 and FMW). These modes are abbreviations of Continuous Wave (CW), Lower Side Band (LSB), Upper Side Band (USB), Amplitude Modulation (AM), Frequency Modulation Narrow-band (FN) and FM Wide-band (FW). FN1 bandwidth is 6.5kHz,FN2 15kHz and FN3 is 50 kHz. To select the desired mode, click on the appropriate mode button or use the keyboard shortcuts: A for AM, W for FMW, N for FMN, C for CW, L for LSB, and U for USB. Volume The volume control is located on the right hand side of the panel. The volume can range from 0 (no sound) to 31 (full volume). There are several ways to adjust the volume. Using the mouse, you can increase or decrease it by clicking on the up/down volume control arrows respectively, or you can click on the scroll button between the two arrows and drag the volume up or down. Using the keyboard, you can press V and enter the volume, or you can use the left and right cursor keys to decrease and increase the volume respectively. Signal Level Meter The signal level meter, located under the volume control, shows the received signal strength. It represents the strength by a bar graph, and shows the equivalent numerical strength on the right side of the display. The value represents the approximate signal level in dB above the receiver noise floor. The signal level is also used to control squelch and scanning. Squelch The squelch controls the audio output and scanner threshold. In normal operation, if the signal level drops below the squelch threshold, the audio output is muted after a time delay specified under Configure - General Options. If the signal rises above the squelch threshold, the audio is restored immediately. The squelch indicator, at the bottom of the panel, shows whether the current signal level is above or below the squelch threshold. If it is above the threshold, the display is green, otherwise it is red. The squelch threshold also controls scanning. When scanning, the receiver will pause or stop if it receives a signal above the squelch threshold, otherwise it will continue scanning until such a signal is found. 10 WR-3700 Series Users Guide If you wish, you can have different squelch thresholds for normal reception and scanning. To activate this feature, go to Configure - General Options and select Separate squelch for scanning. The receiver will then accept different squelch thresholds on the front panel, and in the Scanner - Setup dialog box (described later). Attenuator The attenuator controls the level of the RF signal entering the receiver front-end. If a signal is too strong, it may overload the receiver and cause distortion. To combat this problem, the RF signal can be attenuated by 18 dB by clicking on the Local button or by pressing the O key. If the attenuator is active and the signals are too weak, click the DX button or press the D key to turn the attenuator off. Stepping Four stepping modes are available: fixed, auto, memory, and duplex. To select between fixed, auto and memory stepping, click on the Select button or press the T key until the desired stepping mode appears. Duplex stepping is activated separately, as described below. To step through frequencies, click on the up/down buttons located next to the frequency readout, or press the Page Up/Page Down keys to step up/down respectively. The stepping modes are described below in more detail. Fixed Stepping Where stations operate on fixed channels (e.g. AM or FM broadcast band, mobile radio, CB), it is usually more convenient to change the frequency in steps corresponding to the channel separation. You can specify the desired step size for each mode from a minimum equal to the frequency resolution of the display, up to a maximum of 10 MHz. To enter the step size, either click on the step display with the mouse, or press the F key; then enter the desired step size and press Enter (or Escape to cancel the entry). Note that LSB/USB share the same step size. If you change the mode, the step size will be changed to the size previously entered for that mode. Note that all modes retain the frequency to the nearest 1 Hz even though the extra digits might not be visible. For example if you change from LSB to FMW and back, the actual frequency is not rounded off, but remains the same. This ensures that accidental mode changes do not cause the exact current frequency to be lost. Auto-Stepping Auto-stepping is an enhanced form of fixed stepping, in which the step size depends on the receiver frequency. This facility can also automatically set the mode and squelch threshold according to frequency. 11 WR-3700 Series Users Guide Before this feature can be used, it is necessary to set up one or more stepping ranges. To do this, first select Auto-stepping from the Configure menu. A dialog box will appear, allowing you to establish the auto-stepping ranges. To add a range, click on the Add button. Another dialog box will appear, allowing you to specify the lower and upper frequency limits, the desired step size for that range, the mode, squelch level, and a text description. The mode, squelch level and description are optional. You can also edit, delete and move the ranges in the list. If ranges overlap, those at the top of the list will have higher priority over those lower in the list. You can move ranges higher or lower in the list by clicking on them and dragging them to the desired location. If the receiver is not in a specified range, it will default to the fixed step size. If you enter a different value in the step display, it will change to that step. If the receiver is subsequently tuned to a defined auto-step range, the step size for that range will be automatically recalled and will replace the fixed step. Whenever the receiver is tuned to a defined auto-step range, the display below the main frequency readout will show the text description for that range regardless of whether auto-

stepping is active or not. If the current frequency coincides with a frequency previously stored in memory (see below), the memory comment will take precedence over the text description. Memory Stepping Memory stepping allows the user to step directly between frequencies previously stored in a memory file. In this mode, the callsign of the current memory entry is shown in the step display. If the user types in a frequency which does not correspond to a memory frequency, the receiver will tune to this frequency without problem. If the user then steps the frequency up or down, the receiver will find the memory frequency closest to the current frequency in the same direction, and tune to it. At least one frequency must be stored in memory for memory stepping to work. If the memory is empty, memory stepping will not function. Duplex Stepping stepping to listening simplifies Duplex full duplex transmissions, which usually have widely different transmit and receive frequencies. It can also be used to step between other widely spaced transmissions, which have the same mode. To set the frequency separation, select Duplex Separation from the Configure menu. Any separation can be entered, up to the maximum tuning range of the receiver. To step up or down by an amount equal to this separation, press the Home or End keys respectively. If the user attempts to step outside the frequency limits of the receiver, the command will be ignored. Memory WiNRADiO has the ability to store up to 1000 frequencies in a memory file, and the total number of memory files is limited only by hard disk capacity. Each entry is assigned the following: a number from 0 to 999, the frequency, mode, group number(s), callsign and comment. If the receiver is tuned to a frequency stored in the memory, the associated callsign and comment is displayed in the area below the main frequency readout. 12 WR-3700 Series Users Guide Storing a Frequency into Memory To store the current frequency you are tuned to into one of the 1000 memory locations in WiNRADiO, you can either click on the S button in the Memory panel, or press S on the keyboard. A dialog box will pop up, and present you with a range of options you can fill in. At the top of the dialog box is the frequency you are storing (this cannot be edited). The next line is the next available memory number that is empty (starting with zero). You can change this to a memory number that you want

(including ones that already are in use). The next option is the group assignment. You can assign a frequency to one or more of 16 different groups. You can set up frequency groups to suit your particular areas of interest, to distinguish certain types of stations from others. Another attribute you can store with a frequency is a callsign. You can store up to 9 characters in the callsign. A hotkey (function keys F2 to F12) can be associated with a frequency, so that when you press the key, that frequency is instantly recalled. If a hotkey is being used by another frequency, it will be shown as (used), but you can override the previous assignment with a new one if you wish. A comment can also be included with a frequency. The size of the comment is limited by the width of the text entry line. When the receiver is tuned to this frequency, the text display below the frequency readout will show the frequencys callsign and comment entered here. The mode can also be stored, which will be set automatically when the frequency is recalled. Finally, one other attribute that can be set is whether the memory number is to be excluded from a memory scan or not. By default the number is not locked out, but can be locked out by checking Scan lockout. Recalling a Frequency from Memory There are several ways to recall a frequency from memory:

Use a hotkey;

Type a number into the memory number display;

Type a number while holding down the Control key;

Use the memory recall/view dialog box;

Use memory stepping. Hotkey The quickest way to recall a frequency is to assign a function hotkey to it when you initially store the frequency. Any function key from F2 to F12 can be used. Note that F1 cannot be used, as it is reserved for help. If desired, existing memories can be edited to add a function hotkey (see below). To recall a frequency using a hotkey, simply press the appropriate function key (F2 to F12), and it will be recalled instantly. This assumes that a frequency has previously been assigned to that key, of course. 13 WR-3700 Series Users Guide Control-Number To recall any memory, hold down the Control key down while typing the number of the memory. Alternatively you can click on the memory display, enter the number, and then press Enter to recall it. Memory Recall/View The final alternative is to click on the R button or press the R key, upon which a memory recall dialog box will pop up allowing you to view and recall any frequency from a list. You can limit the list to a subset of frequencies by specifying a search string, group number or selected modes. Then click on Find, upon which only those frequencies which match the search criteria will be shown. To tune the receiver to a list entry and keep the memory viewer open, single-click on it with the left mouse button. To tune the receiver and close the viewer, double click on it. To tune the receiver to the frequency it was tuned to before opening the memory viewer, click on Previous. Editing Memory To edit an existing memory entry, first click on the R button or press the R key. Select the memory to edit from the list, then click on Edit. You are able to modify every setting, including the frequency, except for the actual memory number. To edit the next memory entry, click on the Next button. Saving and Loading Memory Files WiNRADiO stores 1000 frequencies in each memory file. You can choose which file is currently active, and you can also save the file under a different name. When you start your WiNRADiO receiver for the first time, it creates a memory file called winradio.wrm. Every time you close your WiNRADiO session, the memory is automatically saved to the active file. To perform an immediate save, select File - Memory file - Save. To open another memory file, select File - Memory file - Open. Before the new file is opened, and if the current memory file has been modified during the current session, you will be asked if you want to save the changes or not. Next, a dialog box will appear which allows you to open a different memory file (or reopen the same one discarding any changes since it was last opened). The selected file will now become the active memory file. To rename the current active file and save it under a different name, select Save as from the same submenu. A similar dialog box will appear, where you can specify the new filename and/or path. New Memory File To clear all frequencies and start a new file, select File Memory file New. Before the new file is opened, and if the current memory file has been modified during the current session, you will be asked if you want to save the changes or not. A dialog box will then appear, prompting you to enter the name of the new file. 14 WR-3700 Series Users Guide Scanning WiNRADiO provides a variety of scanning functions and options, to allow you to optimise the way you search for stations. The scanner steps through frequencies until it finds a transmission that has a signal strength greater than the squelch value. The following sections describe the available scanning methods and associated options. Immediate Scanning Immediate scanning is the quickest and simplest way to search for stations. To activate this, first set the desired stepping mode and step size if necessary, then click on the immediate scan up or scan down button. The receiver will then start scanning up or down from the current frequency, according to the selected step size. If the receivers encounters a signal which has the same or higher strength than the current squelch threshold, it will either pause or stop, depending on the selected scanning options. To access immediate scanning from the keyboard, use the Insert or Delete keys to scan up or down respectively. To cancel immediate scanning, press the Escape key. Frequency Range Scanning Frequency Range scanning provides an extension to immediate scanning in 'Fixed Step' mode. It allows you to specify a number of ranges of frequencies to scan. You can enter the start and end frequencies, the step size, mode and squelch setting for the range to scan. You can add this range to a list from which you can pick the ranges you want to scan. Each range can also have an associated description. Click on the Start Scan button to start scanning from the first selected range, or click on Close button to exit the dialog box (it will remember your settings and ranges). If you have already performed a range scan and have not changed the range selection, you can resume the range scan from where it was stopped by clicking on Resume previous scan. When scanning in this mode and the scanner reaches the end of the current range, it either goes to the next range selected, or loops back to the start of the first range selected. The range list allows you to add, edit and remove ranges, and you can click on one or more ranges to select them for scanning. Any ranges with descriptions can be selected in the 'Spectrum Scope' for a sweep to be performed on the associated range. Memory Scan Memory scanning provides an extension to immediate scanning in Memory Step mode. In addition to the basic stepping through the memory frequencies, it allows you to specify a subset of memory frequencies to scan by selecting a range of memory numbers, modes and one or more groups. To start the memory scanner, click on the Memory button or press the M key. The memory scan dialog box will appear. 15 WR-3700 Series Users Guide Select the range of memory numbers to scan, mode and group restrictions. Click on the Scan button to start scanning, or click on the Close button to exit the dialog box (your settings will be remembered). When the scanner reaches the end of the memory range, it loops back to the start of the range and starts again. A feature provided with memory scanning allows you to assign priority memory number. When this is used, the priority memory number is scanned after a certain number of memories is scanned. How many frequencies are scanned before the priority frequency is specified by the Scanning interval. Scanner Options There are several options that can be set for the scanner to suit your needs. You can specify how the scanner operates when it pauses at a signal and how fast it scans. When the scanner finds a signal, it has two basic options: pause or stop. If pause is specified, you can force the scanner to continue, stop, exclude or wait. If you leave it waiting, there are four different options to allow it to continue automatically:

When the signal disappears (drops below the squelch level) After a fixed period of time (regardless of the signal level) When the signal disappears during a fixed period of time or after the fixed period of time (whichever comes first) Store the settings into the log Start recording the audio to a sound file After a signal disappears for at least a fixed period of time. The fixed period of time is specified by the Delay time. The scan rate specifies the maximum number of frequencies per second the scanner will check, but could be slower than specified if you have other programs running. When the scanner stops or pauses at a signal, you can set it up to perform certain tasks:

Write the frequency to memory Alert the operator To write the frequency to memory, select Write to memory and specify the range of memory numbers that the scanner can write to. You can also assign a group number that the frequency will be associated with. Check the Confirm box to confirm each frequency before it is written. To store the current settings (frequency, mode, date, time and signal strength) to the log, select Store to log. The audio signal can be transmission is found by selecting Record audio, specifying a file name to record to and specifying the sampling rate and bits per sample. The file name can also include a #d, #t, and/or #f to specify the date, time and frequency respectively. If you need a # in the file name, enter ## (double-hash). The date and time will be represented as a six digit number. The date order depends on your country settings in Windows (will be typically DDMMYY or MMDDYY), and the time is HHMMSS (24 hour). The frequency will be represented by a number in kHz with no leading zeros, spaces or decimal places. recorded when a 16 WR-3700 Series Users Guide The WiNRADiO scanner can also alert the operator by means other than the scanner dialog box. The operator can be alerted by an audible beep and/or by sending data on a parallel port, typically for remote notification. WiNRADiO can have two separate squelch settings: one for audio and one for scanning. This option is specified under General Options in the Configure menu. If this feature is enabled, another control is visible at the bottom of the dialog box. It allows you to specify the scanner squelch while the audio squelch remains controlled from the main panel. Exclusions To avoid the scanner stopping at unwanted frequencies, your WiNRADiO software can maintain a frequency exclusion list. The exclusion list contains a list of frequency ranges which are skipped by the scanner. During a scan, you have the option of adding frequencies to the exclusion list by clicking on the Exclude button (this option is enabled by checking Enable excluding while scanning at the bottom of the Scanning Exclusions dialog box). The range that is excluded depends on the mode. In CW, LSB and USB modes, the default range excluded is 999 Hz, AM is 1.999 kHz, FMN is 6.249 kHz and FMW is 49.999 kHz of the current receiver frequency. If you want to change any of these default values after they have been added, select the exclusion from the list and click on the Edit button. You can also manually add exclusions by clicking on the Add button, edit or delete existing ranges. There is no priority system, if the frequency is within any range in the list, it will be ignored by the scanner. Miscellaneous Mute The Mute button controls the audio output of your WiNRADiO receiver. If it is on, the output is muted (switched off). To activate (or deactivate) the mute control, click on it or press Ctrl+U. Passband Tuning (IF Shift) In CW, LSB and USB modes, a control is enabled at the top-left corner of the panel to allow you to adjust the passband tuning of the receiver. This controls the quality of the audio reception of an SSB transmission. The IF can be shifted up to 3000 Hz above or below the normal location. To use the control, click on the display and enter the frequency in Hz. To set the frequency from the keyboard, press I or Ctrl+B and enter the frequency. To quickly reset the display to 0, press the Reset button or the star key on the numeric keypad. Indicators The three LED-like indicators indicate various states of your WiNRADiO receiever. The squelch indicator, Sqlch, is green when the squelch is inactive (the audio output is open), and red when it is active or about to activate

(depending on the Squelch delay time specified under Configure - General Options). 17 WR-3700 Series Users Guide The PLL indicator shows the lock status of the receivers Phase Lock Loop. When operating normally, the indicator is green. If something goes wrong, it will turn red indicating that the receiver cannot tune into a specific frequency. The Power indicator indicates that the receiver is powered up. Power Switch The power switch controls the radio receivers power. When it is off, the actual receiver circuitry is powered down. Date and Time Displays The date and time displays show the current local time and UTC standard time. The actual format of the displays is controlled by Regional Settings in the Control Panel (or International in Windows 3.1 and NT 3.5) and to a lesser degree in the Date and Time dialog activated from the Configure menu. The time difference between the local time and UTC is set under Date/Time in the Control Panel in Windows 95 and NT, while in Windows 3.1 you have to manually specify it in the Date and Time configuration dialog box. If the default provided is incorrect and you wish to override the default, select Override default time zone and enter the difference. If you are in a country with 12-hour time, you can specify whether to show the local time in 12 or 24-hour format and whether to show UTC in 24-hour format. If you are in a country with 24-hour time, you have no option to show the time in the 12-hour format. Window Properties There are several features that allow the customisation of your WiNRADiO interface. These include:

size of the window position of the panel in the window if the window is smaller than the panel background colour whether it is always on top of all other windows whether the title and menu bars are hidden for a smaller window The first two are basic Windows features. The window that contains the receiver panel can be positioned anywhere in the Windows desktop and can be sized to be as big or as small as you want. When the window is smaller than the actual panel, scroll bars will appear to allow you to access hidden parts of the panel as shown here. 18 WR-3700 Series Users Guide Background Colour To adjust the background colour, select Background Colour from the View menu. A dialog box will appear that allows you to specify the colour you want for your background. You can select one of several predefined colours, visually select a colour using the colour box (hue v saturation) and the luminance, or enter the colour specifying actual RGB or HSL values. Click on Apply to see the colour before closing the dialog box. Always On Top This facility allows the WiNRADiO window to remain always visible, even when using other programs (such as a word processor). To enable the WiNRADiO window to do this, select Always on top from the View menu. A check mark will appear next to this menu command. To undo this option, select the menu command again, and the check mark will be removed and WiNRADiO will act like other normal windows. Hide Title Bar The ability to hide the title bar and menu allows you to reduce the overall size of the window. To activate this feature, select Hide title bar in the View menu. This feature is especially useful in conjunction with the Always On Top feature to allow a small window to sit on top of all windows. For example, you could just show the current frequency as shown here. To access the menu commands, click on the little button that is visible in the top-left corner of the window. To move the window around the screen, click-and-drag on any inactive part of the WiNRADiO panel or background. To show the title bar and menu, select the Hide title bar command in the View menu. General Options Other configurable options for WiNRADiO have been grouped into a common dialog box called General Options which is accessed from the Configure menu. The Frequency readout offset specifies a value that is added to the displayed frequency. It is useful if you are receiving a transmission through a down-converter (to receive frequencies higher than upper limit of the receiver). The other options are self-explanatory, if you need more explanation about a particular feature, refer to the on-line help. 19 WR-3700 Series Users Guide Spectrum Scope The Spectrum Scope is a utility to display and store the signal level across a frequency range. After a frequency sweep has been performed, you can tune to any frequency on the display. To tune to a frequency or peak on the display, click on it. You can hold down the mouse button and drag the cursor across the display quickly tuning to any frequency on the display (this facility will be described in greater detail under chapter heading VisiTune). You can even configure it to tune another receiver card into the selected frequency. Double-

clicking finds and tunes to the closest peak. Mathematical functions can be applied to the sweeps to help find transmissions you are after. Every sweep is recorded and can be saved to a file to be viewed at a later time and different analytical functions applied to the data. Markers can also be added to the sweep, and the sweeps can be printed. Spectrum Sweeping To perform a spectrum sweep, you have two methods of specifying the frequency range. You can either specify it by the start and stop frequencies, or by the centre frequency and the width of the sweep. To specify a sweep method, see the following section on Options. Next, you specify the step size depending on the resolution and speed you want. The resolution bandwidth (RBW) also has an effect on the step size. For a slower, higher detail sweep, select a small step size, and in contrast, for a quick, coarse sweep, select a large step size. For example, if you are using the 17 kHz RBW, step sizes below 10 kHz are not useful;

all signals would be captured at 10 kHz. A 5 kHz step is suitable for a fairly detailed sweep using an RBW of 6 kHz. If you select a step size larger than the RBW, it is possible that signals will be missed that are located between two stepped frequencies. Once you have specified the parameters, click on the Sweep button to perform a sweep. Every time you change any parameter (except the resolution bandwidth), any previous sweeps will be cleared when you start a new sweep. The bandwidth can be changed at any time, even in the middle of a sweep. Up to 200 sweeps will be stored. If more than 200 sweeps are performed with the same parameters, then every successive sweep will delete the earliest sweep recorded. To stop a sweep prematurely, click on the Stop button (which is the Sweep button with a different caption). If you stop, clicking on the sweep button again will start a new sweep from the start (but the previous sweep will be preserved until a parameter is changed). Alternatively, you can click on the Pause button to pause the sweeping and click on it again to let the scope resume from the frequency it was paused at. 20 WR-3700 Series Users Guide VisiTune A unique feature of the WiNRADiO Spectrum Scope makes it possible to smoothly tune the receiver by dragging the mouse against a spectrum background. This feature is called VisiTune. When you click on a spectrum sweep with the left mouse button, the receiver will tune to the frequency where the mouse is located (the frequency is displayed in the top-left corner of the scope window). If you hold the mouse button down and drag it left or right, the receiver will immediately respond to your movements, allowing you to directly inspect transmissions visible on the spectrum sweep. If you double-click at a point on the display, WiNRADiO will search for the highest peak nearest the cursor depending on the slope of the sweep at the cursor. It will check the level at either side of the frequency where you double-clicked. It will then follow the slope that rises towards a peak until it reaches a peak. It you click at a valley, it will search both sides for the highest peak. Clicking on a flat part will not start a search for a peak. To make VisiTune more useful, you can configure the spectrum scope to use another receiver for sweeping. If you have another WiNRADiO card installed, this allows you to let the spectrum scope to continually sweep the band you are interested in and at the same time tune and listen to any frequency in the sweep. See the Options section for more information on configuring this feature. Other tuning methods can be accessed from the context menu, invoked by clicking with the right mouse button on the display. You can choose Tune to current frequency and Tune to current peak to tune the same as above. Alternatively, you can select Tune to maximum peak and Tune to average peak to tune to a peak on those calculated sweeps respectively. You can also explicitly select a receiver to tune the frequency to, other than the default. If you have two or more WiNRADiOs you can tune one of these other receivers to the frequency or frequency peak. Click on the appropriate receiver under Tune other receiver to freq. Finally, if you have only one receiver, you might wish to enable the Manual refresh feature under Options. When enabled, the background spectrum graph will be updated while you are navigating around it with the left-hand mouse button held down (note that, with the fast hand movements over a large frequency range, the receivers settling time might not allow accurate updating of the displayed spectrum). Markers You can add frequency markers to a spectrum sweep to assist you in finding and monitoring a frequency (or several frequencies) during a sweep. Markers are also saved when you save the sweep(s) to a file. To add a new marker, pop up the context menu (click on the display with the right mouse button) and select Add marker. A markers properties can also be modified. Right mouse-

click near the marker and select Marker properties. You can change the markers frequency and colour. To delete a marker, select Clear marker from the context menu. To tune to a marker, select Tune to marker from the menu. Saving and Loading Files Every sweep is recorded until a new sweep is performed with different parameters. To save sweep data, click on the File button and select Save from the pop up menu. Enter a file name in the dialog that appears and click on OK to save the file. All sweeps and markers will be saved in the file. To load a previously saved file, click on Open from the File menu. Select the file and click on OK. Any previous sweep data will be immediately cleared. 21 WR-3700 Series Users Guide Printing Every sweep can be printed for archiving and presentations. Click on Print in the file menu. A dialog box will pop up allowing you to specify several settings for printing. You can specify which sweeps to print (including calculated ones), the printer to print to

(and its configuration), the margins on the paper (so you can print on a certain part of the paper), paper orientation, how many pages for the spectrum (so you can print it out like a banner) and whether to print each selected sweep separately or combined into one print-out. Each individual sweep is shown by when it was actually performed (date, starting time and finishing time). Options Several aspects of the spectrum scope can be customised. The first is the sweep range specification, you can choose either start and stop frequencies, or the centre frequency and the width of the sweep. Select the appropriate method in the dialog box. You can set up WiNRADiO to mute the audio or not when it starts a sweep. It will mute the audio if Mute while sweeping is checked. If Continuous sweeping is checked, when the sweeper gets to the end of a sweep, it will start a new sweep immediately until this option is unchecked or you click on the Stop button. The Sweep on list allows you to specify which receiver card should be used for sweeping. The list shows all currently available receiver cards. VisiTune manual refresh, when enabled, forces updating of the spectrum display under the frequency cursor (thus allowing a manual sweep with the mouse if the left mouse button is held down). The Previous sweeps section allows you to show a certain number of sweeps that were done prior to the most recent. You can specify how many to show and the colour for each of them. You can also control the colour of the current sweep, calculated sweeps and all the actual sweeps. By default, only the current, maximum and exponential average sweeps are visible. To see a sweep, select it (or several) from the list and choose a colour to show the sweep(s) in. To hide a sweep, select invisible at the top of the colour list. Finally, you can specify how many sweeps to use for the Rectangular average calculated sweep and the weighting factor for the Exponential average sweep. 22 WR-3700 Series Users Guide Task Scheduler WiNRADiO includes an advanced task scheduler that can be configured to schedule almost any task that WiNRADiO can perform. Each task can be triggered by a selected combination of date and time, signal level rise or fall and DSP event. Each task can activate any number of times and time-triggered tasks can occur at discrete intervals. You can also save and load schedules to different files. Using the Scheduler To utilise the scheduling facilities of WiNRADiO, select Schedule from the Scheduler menu. A window will pop up showing a list of scheduled tasks and buttons to manipulate the schedule. Initially the list will be empty. To use the scheduler, you have to add tasks to the schedule. Click on the Add button to add a new task. See the following section Adding a Task to the Schedule. Once you have entered the desired tasks, WiNRADiO will continually monitor these active events and will perform the associated task when the conditions are met. When a time activated task is about to trigger, a window will appear informing you that a task is about to occur allowing you to skip or postpone the task. If you wish to have the task proceed normally, you can either click on OK or ignore the window (it will disappear when the task occurs). You have the option of specifying whether the notification appears, the period of time before it appears and whether to beep or not when it appears. Signal level transitions and DSP-triggered tasks will occur without any warning. One or more tasks can be disabled (and re-enabled at a later time) by selecting the tasks to disable and checking the Disabled check box. You can also schedule more than one task to activate at the same time, they will be executed in the sequence shown in the list. Adding a Task to the Schedule Event Triggers trigger can be a A scheduled task can be triggered by different methods. The selected combination of time, signal level change and DSP event. Depending on which triggers are used, the task will activate when either the signal transition or DSP event conditions are met, and at or after the specified date and time. Date and Time If you would like a task to be performed at (or after, if using the signal transition or DSP events) a certain time and day, check the Date check box and enter the date and time. You can also specify how often to repeat the task and the period of time to wait between each task in the Repetitions section. A time triggered task can also be performed everyday at a certain time or on certain selected days of the week. 23 WR-3700 Series Users Guide Signal Strength Transition A task can be set to be performed when the signal level rises and stays above (or falls and stays below) a certain threshold for a certain period of time. Check the Signal transition check box, and set the parameters accordingly, if you want to take advantage of this feature. Used on its own (or with the DSP event), this task can trigger at any time while WiNRADiO is operating. If you would like it to trigger after a certain time, specify a date and time trigger event. DSP Event This specialised trigger method relies on DSP applets. DSP applets are programs that run on the DSP resident on the Spectrum Monitor card. Certain external DSP applets can be set to generate an event to make WiNRADiO perform a certain task. For example, when the DSP is decoding and monitoring digital data, it could be made to search for a certain sequence and trigger WiNRADiO to record the transmission. Each DSP applet can be unique in its features. Click on the Configure button to set up the applets event trigger. Similarly to the signal strength trigger, you can configure the task to trigger after a certain date and time by activating the date and time trigger and specifying the date and time. The DSP and signal strength transition triggers are independent of each other and, if both are active, the task will activate if either of the two meet its set conditions. Tasks That Can Be Performed The three events can be configured to trigger any one of eleven tasks. Select the appropriate task that you would like WiNRADiO to perform and configure the options associated with the task. Change Settings WiNRADiO can be set to a particular frequency, mode, volume, squelch, attenuator, mute and power state. By default, none of these settings are changed (frequency, volume and squelch are blank, mode is set to (N/A) and the Atten, Mute and Power check boxes are greyed). To change any particular setting, specify a value in the appropriate control. Recall Memory To recall a memory at a specific event, select Recall Memory from the task list and specify a memory number to recall when the event occurs. Store Details to Log The current settings and signal level can be recorded to the log file using the Store details to log task. Specify a comment for the log entry to be added. Start DSP Applet A DSP applet can be activated to perform certain functions, typically decoding. Select the applet from the list of installed applets. Start/Stop Recording To record the audio to a file automatically, select Start recording. Select the audio properties, file name and an optional maximum file size. When the recording starts, it will only be stopped by manually clicking on the stop button, reaching the maximum file size or by a Stop recording event (and also if the destination runs low on space, about 5 MB). 24 WR-3700 Series Users Guide The file name can also include a #d, #t, #f and/or #n to specify the date, time, frequency and a unique number respectively. If you need a # in the file name, enter ## (double-hash). The date and time will be represented as a 6 digit number and the frequency is in kHz. The date order depends on your country settings in Windows (will be typically DDMMYY or MMDDYY), and the time is HHMMSS (24 hour). The number is represented as a four digit number with leading zeros. See the section on Repetition Options for details on setting how many times a task is performed. Start/Stop Scanning The scheduler can automatically start a range or memory scan. Select the scanning method and set up the parameters for the scan. You can also configure the scanner options. These configurations are local and do not affect the normal scanning options activated on the panel. Perform Spectrum Sweep To perform a spectrum sweep of a specific band, select Perform spectrum sweep from the task list. Specify the start and stop frequencies (you cannot specify a centre frequency and sweep width like in the spectrum scope), step size, resolution bandwidth and a file name to store the spectrum file (this also allows the use of the #d, #t and

#n specifiers). When the event triggers, the spectrum scope will activate (pausing any scanning or sweeping that may be occurring at the time), sweep the range to the file and close (and resuming anything that paused). Record Signal Strength A signal strength recording of a particular frequency can be automatically performed. You can specify the interval and duration of the recording. If you specify an existing file, the data will be appended to the file. If the settings are the same as an existing trace, the new signal strength data will be appended to the same trace, otherwise a new trace is created. If a signal strength recording is already in operation, a new trace will be automatically added and the new interval will be set (unless it is left blank). The file name will be left unchanged. Alert Operator The operator can be alerted simply by making the computer pop up a message, beep and/or by sending a command to an external device through a parallel port. If you select Show message you can enter a custom message to show. If you select Send data, you can specify the port and the data to send to the port (in decimal or hexadecimal). Repetition Options Each event can be repeated multiple times, from once to almost ten thousand times and also infinitely. If the task is triggered by the date and time, the period of time between each repetition can be specified to the nearest 6 seconds (1/10 of a minute) up to 99 hours and 59.9 minutes. Alternatively, you can set it to repeat daily or on certain days during a week. Saving and Loading Schedules All schedules are saved to a file. You can save a schedule in a different file by selecting Save as from the Scheduler menu (schedules are always saved automatically). This new file becomes the active schedule. To load a different schedule, select Open from the Schedule menu, and to create a new schedule, select New. In both cases the new schedule is the active schedule. 25 WR-3700 Series Users Guide Sound Recorder The inbuilt DSP allows WiNRADiO to record and playback audio files without the need for a separate sound card. The file generated is a standard Windows .WAV file which can be played by any third party software application. WiNRADiO can even play most wave files generated by other applications

(mono only). There are several audio formats you can record in, depending on your choice of quality versus file size. There are three sampling rates and two different bits per sample to choose from: 8, 11 and 16 kHz sampling, 8 and 16 bits per sample. 8 kHz, 8 bit sampling results in the least number of bytes per second, while the 16 kHz, 16 bit sampling results in the highest quality audio reproduction. The audio format is specified from the 'Audio format' sub-menu under the 'Accessories' menu. Sound files can be recorded manually or automatically by the scheduler. Recording To record a file, first select Sound recorder from the Accessories menu. Click on the record button (the solid red circle) to start recording. To stop recording, click on the stop button

(solid blue square). You will be prompted for a file name to save the recording to. The recorded file can now be played, or you can record another file (or close the sound recorder). You can pause recording temporarily by clicking on the pause button, and resume by clicking on the pause button again. Playback You can either play a file you just recorded or load another file and play it back. To play an existing file, click on the Open button and select the file. Click on the play button. You can move anywhere in the file by either adjusting the position on the scroll bar or clicking on one of the three navigation buttons. The left-most moves the position to the start of the file while the fast forward and rewind buttons move forward and backwards through the file respectively. While a file is being played, you will not be able to hear the radio until it is stopped again. While playback is paused, the audio output is silent. Signal Strength Recorder The signal strength recorder is a useful feature for channel monitoring. It records the signal strength of several frequencies over a period of time showing the results on a display similar to the spectrum scope. Up to 100 separate traces can be recorded and you can specify how often a signal sample is to be taken for each enabled trace. Traces can be added at any time and existing traces can be disabled (no samples are taken) or re-enabled. The sampling rate can be changed within a session by stopping the sampling, editing the interval and restarting. The signal strength recorder is a file-based recorder (like the Sound Recorder) and is continually saving the information to a file. Using the Signal Strength Recorder To use the signal strength recorder, select Signal Strength Recorder from the Accessories menu. 26 WR-3700 Series Users Guide Initially, you have to add a trace (or more) to be recorded by clicking on the Add button. Enter the appropriate data. You can also specify a colour to show the trace on the display. A list of traces is shown in the drop-down list to the left of the Add button. If you wish to edit, disable/enable or delete any traces, select a trace and click on Edit, Disable/Enable or Delete buttons respectively. When a trace is deleted, it cannot be recovered (except by re-

opening the same file if it was previously saved). If you wish to stop a trace, but not delete it, click on the Disable button. You can re-enable it by clicking on the Enable button. The only property of a trace that can be edited is the colour (select invisible to hide the trace). Enter an interval in the Interval edit box (up to 99 hours, 59 minutes and 59 seconds). An interval of 00:00:00 will sample the signal strength as quickly as possible (this depends upon the number of enabled traces and the mode for each trace). Click on Start to start recording. When you have finished recording the signal strength, click on Stop and you can now save it to a file. If you close the recorder and the recording hasnt been saved since it was last modified, you will be asked if you want to save the changes before the recorder closes. If it is a new

(unnamed) file, you will be asked to enter a file name. Saving and Loading Files To save a file, select Save or Save as from the File menu. Enter a file name in the dialog box that appears, and click on OK. If you select Save for a previously saved file, you will not be prompted for a file name. To load a previously recorded file, select Open from the File menu. Choose a file from the dialog box and click on OK. You may continue recording to the end of the file, including adding, editing and removing channels (the new data is appended to the existing file). To create a new recording, select New from the File menu. If the current recording hasnt been saved since it was last modified, you will be asked if you want to save the changes. Options To set up the various features of the signal strength recorder, click on the Setup button. A dialog box will appear to allow you to configure the recorder. The vertical scale of the display can be configured to show only part of the range instead of the full 0-120 range of the signal strength. The recorder can also be set to mute the audio when it does a sample run. Logger The WiNRADiO Logging facility can store the date, time, frequency, mode, level and a comment. When a log entry is added from WiNRADiO, the current date, time, frequency, mode and signal level is appended to the log. Adding a Log Entry To add the current settings to the log, either select Add to log from the Logger menu, or press Ctrl+L. If you have Prompt for log comment checked in the General Options dialog box, a small 27 WR-3700 Series Users Guide dialog box will pop up asking you for a comment. Otherwise, the settings are stored to the log without a comment. The Log Editor WiNRADiO Spectrum Monitor uses a separate program to view and edit the log files it generates. To view and/or edit the log, select Edit log from the Logger menu. The

'WiNRADiO Log Editor' will start up loading the currently active log file. The editor allows you to open multiple files at the same time, cut, copy and paste between them. You can modify and print the contents, search and sort and tune WiNRADiO to any entry. You can even copy a range of entries to the clipboard and paste them into another program such as Microsoft's Excel or Corel's Quattro Pro. Editing Log Entries To edit a log entry, select the cell to modify and enter the new data. To add a new entry, select Insert row from the Edit menu, click on the insert row button or press the Insert key. To delete an entire entry or delete a range of entries, select the row by click-and-

dragging on the column to the right of the date column. Select Delete row(s) from the Edit menu, click on the delete row button or press the Ctrl+Delete keys. The log editor supports multiple undo/redo. If you want to undo any changes you have made, click on the undo button, select Undo from the Edit menu or press Ctrl+Z. You can continue undoing previous changes until the undo button goes grey (indicating there is nothing left to undo). To redo any undone changes, click on the redo button, select Redo from the Edit menu or press Ctrl+Y. You can redo all recently undone changes. The moment you modify anything you cannot redo the changes that were undone. The only other way to modify a file is using the cut, copy and paste functions. If you want to move rows around, select the row(s) you want to move, and click on the cut button (or select Cut from the Edit menu or press Ctrl+X). Select the cell on the row above which you want to insert the cut row. Now click on the paste button (or select Paste or press Ctrl+V). The cut row will be inserted above the row where the active cell is. You can also copy rows using copy instead of cut, and you can also cut, copy and paste between different files. Opening and Saving Log Files To open an existing log file, click on the open button, select Open from the File menu or by pressing Ctrl+O. A dialog box will appear where you select the file that you want to open. A new window will appear in the editor with the contents of the log file. You can create a new log file by clicking on the new button, selecting New from the File menu or by pressing Ctrl+N. A new window will appear in the editor with one entry with the current date and time (and everything else is empty). 28 WR-3700 Series Users Guide You can also save the active file that has been modified by clicking on the save button, selecting Save from the menu or by pressing Ctrl+S. If it is a new file, you will be prompted for a name to save the file under. If you exit the log editor without saving modified files, you will be asked whether you want to save each file or not. If you want to save the current file under a different name and/or location, select Save as from the menu and enter a new file name. Printing To print a log, click on the print button, select Print from the File menu or press Ctrl+P. A dialog box will pop up showing the current printer selected, the entries to print and number of copies to print. If you want to change the printer you are printing to or change the settings of the printer, click on the Setup button. The footer (if you choose to print it) contains the name of the file you are printing and the page number. Searching To search for a log entry, click on the find button, select Find from the Tools menu or press Ctrl+F. A dialog box will pop up where you can specify the parameters to search for. As shown, you can search for entries that were stored during a particular time, a frequency range, modes, signal strength range and/or comment substring. Click on OK to search for the first matching log entry. To find the next matching entry, click on the find next button, select Find next from the Tools menu or press the F3 key. Sorting The entire log file, or a selected range, can be sorted according to the date and time, frequency or signal level in ascending or descending order. Initially, it is sorted according to the date and time, earliest first (this is how they are added from WiNRADiO). To sort the entries, click on the sort button or select Sort from the Tools menu. A dialog box will appear where you can specify the sort order. Click on OK to sort the entries. Tuning WiNRADiO to a Log Entry The log editor can tune WiNRADiO into any frequency stored in a log (the frequency range and modes may be limited by the WiNRADiO receiver). Select the row containing the frequency and mode you want to tune to and click on the tune to frequency button, select Tune to frequency from the Tools menu or press Ctrl+T. If WiNRADiO is not running, the log editor will attempt to start WiNRADiO. If it cannot start WiNRADiO, a message will appear saying that it could not open communications with WiNRADiO. If this happens, you have to start WiNRADiO manually for this feature to work. Selecting a Log File WiNRADiO can add log entries to any log file. To choose the log file to add entries to, select Log file from the Logger menu. Either choose an existing log file or enter a name for the new log file to create in the dialog box that appears. 29 WR-3700 Series Users Guide External Antenna Control Many installations use at least one antenna, each antenna being suited for a particular frequency band. For adequate full spectrum reception, at least two antennas are required: an HF and a VHF/UHF antenna, typically a wire and a discone respectively. Using a suitable external logic control box connected to a parallel port on the PC, WiNRADiO can automatically switch between antennas according to the frequency WiNRADiO is tuned to. If this feature is used, the entire frequency range of WiNRADiO (150 kHz to 1.5 GHz) should be covered. Otherwise, if you tune to an unspecified range, the reception can be very poor due to the wrong antenna being selected. To set the antenna control up, select External antenna control from the Configure menu. A dialog box will appear showing any frequency ranges that control the antenna, the parallel port and the data sent to the port. You should not connect any printers to the parallel port you are using for antenna control and similarly, you should not specify a parallel port that a printer is connected to. If you require an additional parallel port, an additional I/O card needs to be installed. You need to make sure it can be set up for LPT2 or 3 and the serial ports (if the card contains any) can be configured or disabled, otherwise they may conflict with your existing ports. To add a frequency range, click on the Add button. Another dialog box will appear where you can enter the frequency range, select the parallel port and the data sent to the port. You have three methods of specifying the data to send: decimal value, hexadecimal value and selecting the pins that go high (5 volts). If you change one setting, all the other settings change appropriately. A diagram of the parallel port (showing the socket on the PC) is shown to assist with wiring up a custom control unit. You can also edit and delete existing ranges. When the receiver enters a range, the associated data is sent to the parallel port and the strobe line (pin 1, normally low) is pulsed to allow external logic to latch any data it requires

(the data remains until another frequency range is entered). 30 WR-3700 Series Users Guide DSP The WiNRADiO Spectrum Monitor internal receiver (WR-3700i-DSP) has a DSP fitted to allow digital processing of the audio from the receiver. This gives the receiver the ability to filter the audio, decode digital data and perform other processing on the audio signal. In-built DSP applets allow recording and playback from the Sound Recorder feature. For customer specific applications, developers' information is available to allow new DSP software to be added to the basic WiNRADiO Spectrum Monitor software. Using a DSP Applet All installed DSP applets appear in the 'DSP' menu in WiNRADiO. To start up an applet, select the appropriate applet from the menu. A window will appear allowing you to setup various parameters associated with the applet. All WiNRADiO functions can still be used while the applet is still running. Adding a DSP Applet To add a new applet, copy the file into the directory where WiNRADiO is installed. Applet files have a .DSP extension. If WiNRADiO is already running, close it down first. When WiNRADiO starts up, it will load all the DSP applets found in its directory and add the applet's functions to the DSP menu. Signal Conditioner Applet The WiNRADiO Spectrum Monitor software comes supplied with a DSP applet that provides high performance post-demodulation audio filtering, which is particularly useful when receiving CW and SSB signals, and in some cases (for example HF broadcast) AM. To run this DSP applet, select corresponding item in the DSP menu (ie. DSP - Start applet -

Signal Conditioner). The following window appears on the screen:

This is the description of the controls:

1. Bandpass Filter enables the audio brick wall band pass filter. See 6 and 7 to tune the filter response in real time. 2. Noise Reduction enables adaptive random noise filtering. This option works better for higher signal-to-noise ratios. 3. Auto Notch enables adaptive automatic heterodyne cancellation. The Auto Notch eliminates multiple tones form the audio spectrum. This is very useful to cancel carrier signals, while receiving SSB-modulated signals. 4. Marker Tone activates generation of audible tone with its frequency equal to the centre frequency of the pass band of the filter. This is useful guide for tunning-in on CW signals. A complementary visual guide is the real time FFT display (8). 31 WR-3700 Series Users Guide 5. Gain sets the pre-processing numerical gain of the signal inside the DSP. This parameter helps to resolve the signal-to-noise vs. audio distortion trade-off. If the filtered signal sounds too distorted, choose a lower gain. The AGC option activates automatic gain control algorithm. This function does not supplement the main AGC for the receiver, as it is applied only 'inside' the DSP as an automatic numerical amplification adjustment. 6. Low/High/Centre/Width parameters control the corresponding pass band frequencies of the filter. The two pairs (Low/High and Centre/Width) are synchronized, so that change in one parameter is subsequently transformed into change of the others. The entered numbers are rounded to 10Hz steps. Interactive filter tunning control. You can independently drag the lower and upper transition bands with the mouse. It is also possible to move the whole pass band ('tune'), simply by dragging the upper horizontal part of the displayed response. 7. 8. Real time FFT display. Shows the spectrum of the audio signal. The vertical range of the display is 80dB. Frequency axis marks are displayed above the FFT display. 9. FFT Source - selects whether the FFT is computed before or after filtering of the signal. 10. Bar toggles between displaying spectral envelope and spectral lines, while Grid enables the green rectangular grid on the FFT display. 11. Exit stops the Signal Conditioner applet and unloads the DSP, so that other task

(different applet or the Sound Recorder) can be performed. It is possible to stop the applet by selecting DSP - Stop applet in the WR-3700i-DSP menu. 12. About displays the version info. 13. Settings is used to store and quickly retrieve different combinations of control parameters. To Store current setting, type any desired name into the 'listbox' line and the click the 'Save' button. To recall pre-stored settings, simply select the proper name in the

'listbox'. To remove selected item form the list box, click the 'Delete' button. Note: The Band pass filter uses finite impulse response (FIR ) design, so the phase delay response is inherently linear. This filter is ideal for 'cleaning up' any data mode before outputting the signal to a third party decoder. To adjust the filter to any FSK modulated signal, set the lower cutoff frequency ('LOW') slightly below the lower tone and the higher cutoff frequency above the higher tone of the signal. 32 WR-3700 Series Users Guide Developer Information If you would like to develop your own software for the WiNRADiO receiver, full programming information is available from the WiNRADiO WWW site on the Internet at http://www.winradio.com. Full API and DDE specifications are outlined including source and examples that can be downloaded for C++, Delphi and Visual Basic programmers. If you would like to develop your own DSP applets, development information can be obtained by e-mailing WiNRADiO at support@winradio.com. 33 WR-3700 Series Users Guide Declaration Of Conformity This device, trade name WiNRADiO Communications Receiver, model number WR-3700i-

DSP or WR-3700e complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. I have determined and warrant that the above described devices has been shown to comply with the requirements of the FCC Part 15, by having a device tested at an accredited testing laboratory. Each unit marked is identical to the device as tested. Compliance assumes no unauthorized changes will be made to the equipment and it will be maintained and operated properly. A test report has been generated. A technical file containing the test report will be maintained for a period of at least 2 years after manufacturing ceases. It is also understood that characteristics of this equipment will require retesting. Milan Hudecek Managing Director for Robotron Pty. Ltd. 222 St. Kilda Road St. Kilda 3182 Australia

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