FCC ID: M38-ST-3118C Private land mobile radio

VHF FM DIGITAL TRANSCEIVER ST-3118C (400Mhz ~ 470Mhz) SERVICE MANUAL SmarTrunk Systems, INC. ST-3118C SM R1.1 Contents 1. 2. 3. Specifications: ............................................................................................................................... 5 ST-3118 EXPLODED VIEW .............................................................................................................. 6 ST-3118C SIMPLIFIED DIAGRAM ................................................................................................... 7 4. - ST-3118 RF DESCRIPTION ................................................................................................................ 8 4.1. Circuit Configuration ................................................................................................................. 8 4.2. Receiver System ........................................................................................................................ 8 4.2.1. Front-end RF Receiver ........................................................................................................... 8 4.2.2. ANALOG Audio Processing .................................................................................................... 8 4.2.3. Virtual Squelch Circuit ........................................................................................................... 8 4.2.4. Virtual VOLUME CONTROL .................................................................................................... 9 4.2.5. Sub audio signaling ............................................................................................................... 9 4.2.6. ANALOG AUDIBLE SIGNALING ............................................................................................... 9 4.2.7. DIGITAL AUDIO PROCESSING ................................................................................................ 9 4.3. Transmitter System ................................................................................................................. 10 4.3.1. ANALOG TX SIGNAL ............................................................................................................. 10 4.3.2. DIGITAL TX AUDIO: .............................................................................................................. 10 4.3.3. Drive and Final Amplifier Stages ......................................................................................... 11 4.3.4. Automatic Transmit Power Control .................................................................................... 11 5. ST-3118 ALIGNMENT ................................................................................................................... 12 5.1. Introduction ............................................................................................................................ 12 5.2. ALIGNMENT:............................................................................................................................ 12 5.3. Required Test Equipment ....................................................................................................... 13 5.4. Alignment Procedure .............................................................................................................. 13 5.4.1. GENERAL ALIGNMENT CONSIDERATIONS: .......................................................................... 13 5.5. MAIN RADIO ALIGNMENT ....................................................................................................... 14 5.6. TRANSMITTER ALIGNMENT: ................................................................................................... 14 5.6.1. Main Clock alignment: ........................................................................................................ 15 5.6.2. Transmit Power alignment: ................................................................................................. 15 ST-3118C SM R 1.1 SMARTRUNK SYSTEMS, INC. 2 5.6.2.1. High POWER LEVEL ALIGNMENT ..................................................................................... 16 5.6.2.2. Mid POWER LEVEL ALIGNMENT ...................................................................................... 17 5.6.2.3. LOW POWER LEVEL ALIGNMENT .................................................................................... 17 5.6.3. ANALOG MAXIMUM DEVIATION ........................................................................................ 17 5.6.4. Modulation Gain alignment: ............................................................................................... 18 5.6.5. FDMA DATA MODULATION alignment: .............................................................................. 18 5.6.6. TDMA DATA MODULATION alignment: .............................................................................. 19 5.6.7. EIA tones Level Alignment: ................................................................................................. 19 5.6.8. DTMF signaling level alignment: ......................................................................................... 20 5.6.9. DCS signaling alignment: ..................................................................................................... 20 5.6.10. CTCSS signaling alignment .................................................................................................. 21 5.6.11. FSK signaling alignment: ..................................................................................................... 21 5.7. RECEIVER ALIGNMENT ............................................................................................................ 23 5.7.1. DISCRIMINATOR GAIN ......................................................................................................... 23 6. COMPLIMENTARY USER ALIGNMENT ......................................................................................... 24 6.1. OPTION ALIGNMENT: .............................................................................................................. 24 6.1.1. ANALOG Microphone gain: ................................................................................................. 24 6.1.2. ANALOG External Mic Gain: ................................................................................................ 25 6.1.3. Analog AGC ......................................................................................................................... 25 6.1.4. DIGITAL AGC ........................................................................................................................ 25 6.1.5. MINIMUM VOLUME LEVEL: ................................................................................................ 26 6.1.6. SQUELCH LEVEL: .................................................................................................................. 26 6.1.7. DISABLE RF POWER ............................................................................................................. 27 7. RADIO APPEARANCE ALIGNMENT .............................................................................................. 28 7.1. DISPLAYS AND LEDS: ............................................................................................................... 28 7.1.1. Auto backlight delay alignment: ......................................................................................... 28 7.1.2. Power on Text: .................................................................................................................... 28 7.1.3. Leds: .................................................................................................................................... 28 7.2. Tones ....................................................................................................................................... 28 7.3. ANNUNCIATION ...................................................................................................................... 29 8. ST-3118C MAIN BOARD SCHEMATIC .......................................................................................... 32 ST-3118C SM R 1.1 SMARTRUNK SYSTEMS, INC. 3 9. ST-3118 FRONT BOARD SCHEMATIC ............................................................................................... 33 10. COMPONENT LOCATOR .................................................................................................................. 34 10.1. ST-3118C COMPONENT LOCATOR (TOP LAYER) ......................................................................... 34 10.2. ST-3118C COMPONENT LOCATOR (BOTTOM LAYER) ................................................................. 35 10.3. ST-3118C FRONT BOARD COMPONENT LOCATOR (TOP LAYER) ................................................ 36 10.4. ST-3118C FRONT BOARD COMPONENT LOCATOR (BOTTOM LAYER) ........................................ 37 11. ST-3118C PCB LAYOUT .................................................................................................................... 38 11.1. ST-3118C MAIN BOARD PCB TOP LAYER ..................................................................................... 38 11.2. ST-3118C MAIN BOARD PCB BOTTOM LAYER ............................................................................. 39 11.3. ST-3118C MAIN BOARD PCB GROUND LAYER ............................................................................ 40 11.4. ST-3118C MAIN BOARD PCB POWER LAYER ............................................................................... 41 11.5. ST-3118C FRONT BOARD PCB TOP LAYER ................................................................................... 42 11.6. ST-3118C FRONT BOARD PCB TOP LAYER ................................................................................... 43 12. ST-3118C BOM ................................................................................................................................ 44 12.1. ST-3118C MAIN PCB BOM ........................................................................................................... 44 12.2. ST-3118C FRONT PCB BOM ......................................................................................................... 52 12.3. ST-3118C MIC CONNECTOR PCB BOM ........................................................................................ 53 12.4. ST-3118C FRONT PANEL ASSEMBLY BOM ................................................................................... 53 12.5. ST-3118C MECHANICAL BOM ..................................................................................................... 54 12.6. ST-3118C PACKING BOM ............................................................................................................. 55 13. EXTERNAL CONNECTIONS ............................................................................................................... 56 13.1. ACCESSORY PORT: ....................................................................................................................... 56 13.2. USB: USB 2.0 compliance ............................................................................................................ 57 13.3. External Speaker, (3.5mm) .......................................................................................................... 57 14. List of Figures: ................................................................................................................................. 58 ST-3118C SM R 1.1 SMARTRUNK SYSTEMS, INC. 4 4. - ST-3118 RF DESCRIPTION 4.1. Circuit Configuration to The receiver is a single receiver with built DSP fully integrated. Incoming signals from the antenna, after passing through LPF filter, are fed direct the DSP down converter to get the baseband voice from 0Hz to 3500Hz. Demodulated signals are filtered and conditioned onto a second DSP based filter, which also includes a high efficiency 4FSK modem. For digital demodulation, the recovered data is fed into a vocoder, which converts the data to voice. Analog voice form the analog path or the analog voice recovered from the vocoder are fed into an audio power amplifier. The transmit signal frequency is generated by the integrated VCO and PLL. RF frequency generated by the integrated RF chip is amplified into a 3-step amplifier then filtered by a low pass filter to be applied to the antenna. Receiver System 4.2. 4.2.1. Front-end RF Receiver from the Incoming RF signals the antenna are delivered Receiver Unit and pass through a Low-pass filter, antenna switching to LPF SWITCH PROTECTION FILTER RECEIVER

[U2]

Figure 1: Receiver block Diagram diodes, and then fed to the receiver

(U2) passing through a limiter BPF. 4.2.2. ANALOG Audio Processing RECEIVER

[U2]

AUDIO PROCESSOR

[U12]

AMPLIFIER

[U8]

Figure 2: Receiver Analog Audio Path Bloc Diagram The RF signal is tuned by U2, which includes a base band DSP audio processing, recovering flat audio from DC up to 3500 hz. The detected audio is amplified, filtered and conditioned inside of U12 which also includes a de-

emphasize for received audio signals The output of the filtered and conditioned audio is delivered to a power amplifier (U8) then to the speaker passing the external audio connector switch. through filtering shape 4.2.3. Virtual Squelch Circuit RSSI is measured by the receiver

(U2) as the result of the analysis of the signal and the noise of the carrier. The output is sent to the main processor (U13) as a digital frame, which is analyzed by radio firmware. If the signal quality is higher than the expected for the current squelch the processor threshold, programmed then on the analyzes the expected signaling programmed current channel table. In case of not any additional signaling must be decoded, or the signal has been detected, the main processor (U13) asks to the audio processor (U12) to open the audio path, unmuting the audio amplifier

(U8). The 4.2.4. Virtual VOLUME CONTROL The potentiometer position (R15 front board) is measured by one analog to digital converter on the audio processor (U12), and then the information is reported to the main firmware processor. immediately adjusts the audio processor path gain to get the appropriate overall circuitry volume control. Minimum volume, emergency and private audio level are controlled only by software overriding the information received from the DAC on U12. 4.2.5. Sub audio signaling Received sub audio signaling, as CTCSS and DCS, are received and processed by the receiver (U2) then detected on the audio processor

(U12). Once decoded, the sub audio signaling the to processor where firmware compares it with the programmed into channel programming. If the received signaling matches the channel programming, then the main processor (U13) requests the reported the current the is audio processor (U12) to open the audio patch. 4.2.6. ANALOG AUDIBLE SIGNALING DTMF signals, MDC1200 and tone signals are processed and decoded by the audio processor

(U12). Decoded information or received tone is reported to the main processor (U13). 4.2.7. DIGITAL AUDIO PROCESSING Digital information received is RECEIVER

[U2]

AUDIO PROCESSOR

[U12]

PROCESSOR MAIN

[U13]

VOCODER U14]

AMPLIFIER

[U8]

Figure 3: Digital Receiver Audio Path Block Diagram to processed by the receiver DSP (U2) then delivered the audio processor (U12), which includes a high-speed modem. Data decoded by the modem is transferred to the main processor

(U13) which de-encrypts the information, checks the integrity, correct the wrong bits and extract the audio information form the received frame. The portion of the data received, error free, is moved to the vocoder

(U14). The vocoder re-builds the audio from the compressed data then applies filters, adjust the volume ST-3118C SM R 1.1 SMARTRUNK SYSTEMS, INC. 9 and fed it to the audio power amplifier (U8). corresponding balance controlled by software. 4.3. Transmitter System 4.3.1. ANALOG TX SIGNAL Mic External AMPLIFIER

[U7]

Mic Selector

[U5]

AUDIO PROCESSOR

[U12]

TRANSMITTER

[U2]

PW Figure 5: Analog Modulation path VC TXCO

[Y1]

fed The Mic signal coming from the front connector, the external Mic signal coming from the accessory connector or the output of the PWM filter and into an analog selector/switch (U5), then fed into the microphone pre-amplifier (U7). The result of the conditioned and in band-filtered signal is fed to the

(U12), which Audio Processor provides audio compander, emphasize, limitation, encryption, etc. The high audio band of the signal from 300 to 3500 Hz are directly fed to the transmitter

(U2), which performs a direct modulation of a generated carrier. Low frequency signaling audio are fed directly to Y1 VC TXCO main clock generator and U2 with a Mic Selec tor

[U5]

AMP LIFIE R VOCO DER

[u14]

AUDI O PROC ESSOR MAIN ESSOR

[U13]

PROC VC TXCO

[Y1]

TRANSM ITTER

[U2]

Figure 4: Digital Modulation path Mic External Internal PW fed conditioning 4.3.2. DIGITAL TX AUDIO:

The Mic signal coming from the front connector, the external Mic signal coming from the accessory connector or the output of the PWM filter and into an analog selector/switch (U5), then fed into the microphone pre-amplifier (U7). After and band limiting, the signal is fed directly to the vocoder chip

(U14) which the data codification, perform delivering the digitized and encoded audio as digital frames, which are processed by the Main Processor

(U13), which add a FEC (Frame Error Correction), encrypt the information and add the user related information as user ID, etc. The final data frame is fed to the Audio Processor (U12), which has a built in modem, which operates for FDMA or TDMA signals, controlling the modulation of the Transmitter

(U2) through the VC TXCO for DC to low frequencies and the direct modulation for higher frequencies. ST-3118C SM R 1.1 SMARTRUNK SYSTEMS, INC. 10 LPF Ant Sw D1/D2/

D6 Figure 6: RF transmission path Power Detection U1 4.3.3. Drive and Final Amplifier Stages adjusting is amplified on Q1 Final RF

(2SC5226) the impedance, then filtered to be fed to Q2 (2SC3357) then finally amplified by U3 (RA60H1317) up to 50 watts output power. The transmit signal then passes through Forward and reflected power bridge (U1), then to the antenna switch D1/D2 (UM9401F) and is low-pass filtered to suppress harmonic spurious radiation before delivery to the antenna. 4.3.4. Automatic Transmit Power Control The RF power detector (U1) detects transmitted feedback and reverse power feedback, then the detected signals are send to power control stage (U10) to be compared with the referenced power control coming from audio processor U12 (CMX-

7141). The reference power level are TX CTRL

[Q9 Q18]

Buffer AMP Q1 Final AMP U3 Driver Q2 POWER CTRL

[U10]

in the set my the main processor (U13) to the audio processor (U12) in agree to the current channel information stored into the memory. Power control stage (U10) also compares reverse power feedback coming from power meter bridge (U1) to protect the power module case of antenna mismatching. The output of the power control stage (U10) is fed direct to the RF power Amplifier (U3) controlling the DC bias import for the hybrid module. Evenly when power level is adjusted by software on three levels (Hi, Med, Lo) the power value can be adjusted to any desired value between zero and 50Watts by the alignment software. ST-3118C SM R 1.1 SMARTRUNK SYSTEMS, INC. 11 5. ST-3118 ALIGNMENT factory authorized Realignment Introduction 5.1. The ST-3118 series is carefully aligned at the for the specified performance across the frequency range depending for each version. should therefore not be necessary except in the event of a component failure, or altering version type. All component replacement and service should be performed only by an SmarTrunk representative, or the warranty policy may be void. The following procedures cover the sometimes critical and tedious adjustments that are not normally required once the transceiver has left the factory. However, if damage occurs and subsequently are some parts placed, be realignment may required. If a sudden problem occurs during normal operation, it is likely due to component failure;

realignment should not be done until after the faulty component has been replaced. We recommend that servicing be performed only by authorized SmarTrunk service technicians who are experienced with the circuitry and fully equipped for repair and align. Therefore, if a fault is suspected, contact the dealer from whom the transceiver was instructions purchased regarding Authorized Smartrunk technicians realign all circuits and make complete performance checks to repair. service for factory ensure compliance with specifications after replacing any faulty components. Those who do undertake any of the following alignments are cautioned to proceed at their own risk. Problems caused by unauthorized attempts at realignment are not covered by the warranty policy. In addition, SmarTrunk reserves the right to change circuits and alignment procedures the interest of improved performance, without notifying owners. Under no circumstances should any alignment be attempted unless the normal function and operation of transceiver are clearly understood, the clearly malfunction has been faulty pinpointed any components replaced, and realignment determined to be necessary. the cause of and the in Correction is necessary 5.2. ALIGNMENT:

The following test equipment (and thorough familiarity with its correct use) for complete realignment. of problems caused by misalignment resulting from use of improper test equipment is not covered under the warranty policy. While most steps do not require all of the interactions of some adjustments complex may adjustments performed afterwards. Do not attempt to perform only a single step unless it the equipment require listed, that be ST-3118C SM R 1.1 SMARTRUNK SYSTEMS, INC. 12 is clearly isolated electrically from all other steps. Have all test equipment ready before beginning, and follow all of the steps in a section in the order presented. 5.3. Required Test Equipment RF Signal Generator with calibrated output level at 1 GHz Deviation Meter

(linear detector) In-line Wattmeter with 5 %

accuracy at 1 GHz 50 Ohm RF Dummy Load with power rating 10W at 1 GHz 8 Ohm AF Dummy Load

(Attention: Audio output is BTL output) Regulated DC Power Supply

(standard 13.8 V DC, 15 A) Frequency Counter with 0.2 ppm accuracy at 1GHz Audio Generator AC Voltmeter DC Voltmeter UHF Sampling Coupler IBM PC

/

compatible Computer with Microsoft Windows XP later operating system or SmarTrunk Programming

(version 1.0.2 or later) SDR software USB A/B Programming Cable Preparation 5.4. Alignment Procedure Alignment Precautions A 50-Ohm RF Dummy Load and in-

line wattmeter must be connected to the main antenna jack in all

&

that except request otherwise. for procedures where transmission, specified Correct alignment is not possible with an antenna. After completing one-step, read the following step to determine whether the same test equipment will be required. If not, remove the test equipment (except dummy load and wattmeter, if connected) before proceeding. Correct alignment requires that the ambient temperature be the same as that of the transceiver and test equipment, this temperature be held constant between 68F and 86 F (20C ~ 30 C). When is brought into the shop from hot or cold air, it should be required to wait few minutes to come to room temperature before alignment. Whenever possible, alignments should be made with oscillator shields and circuit boards firmly affixed in place. In addition, the test equipment must be thoroughly warmed up before beginning. Note: Signal levels in dB referred to in the alignment procedure are based on 0 dBm EMF = 1 mV. transceiver that and the 5.4.1. GENERAL ALIGNMENT CONSIDERATIONS:

Evenly if the radio is powered off, the alignment software will detect it, but some of the test cannot be performed correctly. ST-3118C SM R 1.1 SMARTRUNK SYSTEMS, INC. 13 Please be sure you turn the radio on before continue with this alignment procedure. 5.5. MAIN RADIO ALIGNMENT Before setup any parameter, run SDR programming software then select Radio Alignment from top bar menu. Figure 7: Accessing to the Alignment Menu A complementary message will be displayed on the time the software detects the radio connected to USB port on the computer. downloads parameters. As soon as the radio is detected, actual radio parameters are loaded. Once the radio is connected, a new screen pops up showing all alignment The actual software alignment parameters stored into radio memory, so the information displayed on each alignment step is the real value form the previous alignment. The radio also stores in a special memory area, original values assigned in factory. You can go back to those values anytime for any particular alignment step. In case the radio is password protected, dealer password is required to access to this alignment menu. At any time, press to end the alignment procedure then the radio will returns to alignment menu. For any transmit related alignment parameter, low power will be used. 5.6. TRANSMITTER ALIGNMENT:

Figure 8: Connecting to the Alignment Mode If the radio isnt connected, then the program will be timed out after 20 seconds. 13.8Vdc Power Supply Figure 9s: Transmitter Alignment Instruments Connection ST-3118C SM R 1.1 SMARTRUNK SYSTEMS, INC. 14 7.5V Power SupplyPC compatibleOn Line Wattimeter30dB padDeviation MeterFrequency Counter Setup the test equipment as shown for transceiver alignment, apply 13.8V DC power to the transceiver. The RF parameters are typed on the alignment software to facilitate the alignment within all radio band avoiding special programming of the radio before start alignment procedure. All parameters can be aligned without relationship to any other, so there is no an order to align. On this way, you can adjust only the desired parameter, avoiding to waste other realigning parameters than required. to align any Before proceed parameter, a desired frequency must be loaded into both TX and RX. Evenly when the radio has stable all bandwidth, it is recommendable to align on middle of the radio-

working band. characteristics time for 5.6.1. Main Clock alignment:

To align the main clock for radio Tx and RX, please select:

Main Clock Adjust option Alignment screen. Figure 10: Main Clock Alignment default Actual alignment value will be displayed on alignment slider. Press [Start] then move the slider to reach the desired value at the time you checks the Frequency Counter to reach the desired frequency as shown on Frequency field of the alignment screen. As soon the desired value is reached, press [Finish] to store the value on radio memory. alignment Typical correspond to a max error of 60Hz on the alignment clock in factory when the radio was calibrated. If you want to retrieve factory default, press [Factory] instead of

[Start]. You will be asked to confirm the factory default alignment, and then, if you confirm it, original values from factory will be loaded into current alignment settings. This screen will appears any time you want to realign any parameter to Factory Default. confirmation Figure 11: Default Alignment Values Retrieve 5.6.2. Transmit Power alignment:

ST-3118 has three power levels to be selected for each channel. High, medium and low power level can be aligned as per radio usage requirement. ST-3118C SM R 1.1 SMARTRUNK SYSTEMS, INC. 15 For power alignment, you can do a fine-tuning as per your desire frequency sub-band. The software lets you linearize the complete band dividing the complete band into five steps to let you focus into your frequency bands. Even when the software has already assigned the most convenient frequency points to consider the alignment, you still can enter exactly frequency of your interest. the 5.6.2.1. High POWER LEVEL ALIGNMENT To align the High Power level select Power High Level. Software automatically retrieves actual level to the alignment slider. Figure 12: Power High Level Alignment This level has been aligned in factory, but you still can adjust is as per your desires. To realign, please select [Start] then move the slider or introduce the value manually at the time you check the real transmit power on the wattmeter connected to the radio as recommended on TX alignment diagram. As soon as [Start] is pressed, the radio start to transmit a carrier, so please verify the antenna dummy load is properly connected to avoid any damage to the transmitter. As soon the desired value is reached, press [Finish] to store the value into radio memory. If you want to load default High power only, keeping any other value without any change, press [Factory]

instead of [Start]. A pop up window will ask you to confirm the default parameters upload to the radio power. Press [OK] to confirm. As descripted previously, you can manually select frequency range to align, divided into five different sub-ranges. the You can also define the right frequency of interest to align, typing the desired one into the frequency field:

selected frequency If is not supported by radio hardware, the frequency field will be filled on red. In case the PLL is locked, then it becomes filled on green. Please be sure that the PLL is locked as soon as you press [Start], otherwise the alignment should be not correct. ST-3118C SM R 1.1 SMARTRUNK SYSTEMS, INC. 16 5.6.2.2. Mid POWER LEVEL ALIGNMENT Repeat the same procedure to align High Power, but select Power Medium Level on the alignment menu. Figure 13: Medium Power Level Alignment 5.6.2.3. LOW POWER LEVEL ALIGNMENT Repeat the same procedure to align High Power, but select Power Low Level on the alignment menu. Figure 14: Low Power Level Alignment 5.6.3. ANALOG MAXIMUM DEVIATION Maximum deviation for analog signals modulated from ST-3118 can be aligned by Max Deviation option alignment alignment menu. form the Figure 15: Analog Max Deviation Alignment for tone Actual alignment value will be displayed on alignment slider. Press [Start] then move the slider to reach the desired value at the time you checks the deviation meter to reach the desired signaling level for narrow band operation. Radio will generate a 1000Hz alignment reference alignment proposes. As soon the desired value is reached, press [Finish] to store the value on radio memory. Default value has been set to a right value, which correspond to 2.5 KHz for Narrowband Max deviation channels channel bandwidth). If you want to retrieve factory default, press [Factory] instead of

[Start]. You will be asked to confirm the factory default alignment, and then if you confirm it, original values from factory will be loaded into current alignment settings

(12.5Khz ST-3118C SM R 1.1 SMARTRUNK SYSTEMS, INC. 17 5.6.4. Modulation Gain alignment:

This is a critical parameter, which may not be realigned to different values other than factory default. Lower gain means a very high microphone gain must be assigned to get the proper radio voice deviation, and higher gain means a risk because the max deviation limit must be reached by any signal, which makes the limiter to introduce distortion to avoid over deviation. Under your risk, if you still prefer to realign the overall modulation gain, you must select Modulator Gain on Alignment screen. is As soon the desired value reached, press [Finish] to store the value on radio memory. If you want to retrieve factory default, press [Factory] instead of

[Start]. You will be asked to confirm the factory default alignment, and then, if you confirm it, original values from factory will be loaded into current alignment settings. 5.6.5. FDMA DATA MODULATION alignment:

To align 4FSK signaling deviation for FDMA mode, select FDMA Deviation on Alignment screen. Figure 17: Modulator Gain Alignment Figure 16: FDMA Deviation Alignment Actual alignment value will be displayed on alignment slider. Press [Start] then move the slider to reach the desired value at the time you checks the deviation meter to reach the desired signaling level for narrow band operation. For this alignment step, the radio does not generate any signal. It only stores the new value of the overall modulation gain into the memory. Actual alignment value will be displayed on alignment slider. Press [Start] then move the slider to reach the desired value at the time you checks the deviation meter to reach the desired signaling level for narrow band operation. Radio will generate a 1000Hz alignment reference alignment proposes. tone for ST-3118C SM R 1.1 SMARTRUNK SYSTEMS, INC. 18 is As soon the desired value reached, press [Finish] to store the value on radio memory. If you want to retrieve factory default, press [Factory] instead of

[Start]. You will be asked to confirm the factory default alignment, and then if you confirm it, original values from factory will be loaded into current alignment settings. 5.6.6. TDMA DATA MODULATION alignment:

To align 4FSK signaling deviation for TDMA mode (12.5Khz channel bandwidth), select TDMA Deviation on Alignment screen. Figure 18:TDMA Deviation Alignment Actual alignment value will be displayed on alignment slider. Press [Start] then move the slider to reach the desired value at the time you checks the deviation meter to reach the desired signaling level for narrow band operation. Radio will generate a 1000Hz alignment reference alignment proposes. tone for

(12.5Khz is As soon the desired value reached, press [Finish] to store the value on radio memory. Default value corresponds to 2.2 for Narrowband KHz deviation channels channel bandwidth). If you want to retrieve factory default, press [Factory] instead of

[Start]. You will be asked to confirm the factory default alignment, and then if you confirm it, original values from factory will be loaded into current alignment settings. 5.6.7. EIA tones Level Alignment:

EIA signaling generated by ST-3118 must be aligned by selecting EIA Tones Level alignment alignment menu. option form the Figure 19: EIA Tones Level Alignment Screen Actual alignment value will be displayed on alignment slider. Press [Start] then move the slider to reach the desired value at the time you checks the deviation meter to reach the desired signaling level for narrow band operation. Radio will generate a 1000Hz alignment ST-3118C SM R 1.1 SMARTRUNK SYSTEMS, INC. 19 for for tone narrow alignment reference proposes. is As soon the desired value reached, press [Finish] to store the value on radio memory. Default value correspond to 1.8Khz deviation band channels. If you want to retrieve factory default, press [Factory] instead of

[Start]. You will be asked to confirm the factory default alignment, and then if you confirm it, original values from factory will be loaded into current alignment settings. 5.6.8. DTMF signaling level alignment:

DTMF signaling generated by ST-

3118 must be aligned by selecting DTMF Level alignment alignment menu. option form the for tone value reach the desired signaling level for narrow band operation. Radio will generate a 1000Hz alignment reference alignment proposes. As soon the desired value is reached, press [Finish] to store the value on radio memory. Default to 1.8Khz deviation for Narrow band channels. If you want to retrieve factory default, press [Factory] instead of

[Start]. You will be asked to confirm the factory default alignment, and then if you confirm it, original values from factory will be loaded into current alignment settings. corresponds 5.6.9. DCS signaling alignment:

DCS signaling encoded from ST-

3118 must be aligned by selecting DCS Level alignment alignment menu. option form the Figure 20: DTMF Level Alignment Screen Actual alignment value will be displayed on alignment slider. Press [Start] then move the slider to reach the desired value at the time you checks the deviation meter to Figure 21DCS Level Alignment Screen Actual alignment value will be displayed on alignment slider. ST-3118C SM R 1.1 SMARTRUNK SYSTEMS, INC. 20 Press Start then move the slider to reach the desired value at the time you checks the deviation meter to reach the desired signaling level for narrow band operation. Radio will generate 134.4Hz audio tone for alignment proposes. As soon the desired value is reached, press [Finish] to store the value on radio memory. Default value corresponds to 300Hz deviation band channels. If you want to retrieve factory default, press [Factory] instead of

[Start]. You will be asked to confirm the factory default alignment, and then if you confirm it, original values from factory will be loaded into current alignment settings. narrow for 5.6.10. CTCSS signaling alignment CTCSS signaling encoded from ST-

3118 can be aligned by selecting CTCSS Level alignment alignment menu. option form the Press [Start] then move the slider to reach the desired value at the time you checks the deviation meter to reach the desired signaling level for narrow band operation. Radio will generate 123.0Hz audio tone for alignment proposes. As soon the desired value is reached, press [Finish] to store the value on radio memory. Default value corresponds to 300Hz deviation band channels. If you want to retrieve factory default, press [Factory] instead of

[Start]. You will be asked to confirm the factory default alignment, and then if you confirm it, original values from factory will be loaded into current alignment settings. narrow for 5.6.11. FSK signaling alignment:

align FSK/PSK To deviation, select FSK Mod Level on Alignment screen. signaling Figure 22: CTCSS Level Alignment Screen Figure 23: FSK Modulation Level Alignment Screen Actual alignment value will be displayed on alignment slider. Actual alignment value will be displayed on alignment slider. ST-3118C SM R 1.1 SMARTRUNK SYSTEMS, INC. 21 for tone Press [Start] then move the slider to reach the desired value at the time you checks the deviation meter to reach the desired signaling level for narrow band operation. Radio will generate a 1000Hz alignment reference alignment proposes. As soon the desired value is reached, press [Finish] to store the value on radio memory. Default value corresponds to 1.8 KHz deviation for narrow band channels channel bandwidth). If you want to retrieve factory default, press [Factory] instead of

[Start]. You will be asked to confirm the factory default alignment, and then if you confirm it, original values from factory will be loaded into current alignment settings.

(12.5Khz ST-3118C SM R 1.1 SMARTRUNK SYSTEMS, INC. 22 RECEIVER ALIGNMENT 5.7. Setup the test equipment as shown for Receiver alignment, apply 13.8 V DC power to the transceiver. The RF frequency must be loaded on Receiver Frequency of the alignment software to facilitate the alignment within all radio band avoiding special programming of the radio before start alignment procedure. 13.8Vdc Power Supply Figure 24: Receiver Alignment Setup DISCRIMINATOR GAIN 5.7.1. This is a critical parameter, which may not be realigned to different values other than factory default. Under your risk, if you still prefer to realign the overall modulation gain, you must select Discriminator Gain on Alignment screen. Figure 25: Discriminator Gain Alignment Screen Actual alignment value will be displayed on alignment slider. Press [Start] then move the slider to reach the desired value at the time you checks the deviation meter to reach the desired signaling level for narrow band operation. As soon the desired value is reached, press [Finish] to store the value on radio memory. If you want to retrieve factory default, press [Factory] instead of

[Start]. You will be asked to confirm the factory default alignment, and then if you confirm it, original values from factory will be loaded into current alignment settings. ST-3118C SM R 1.1 SMARTRUNK SYSTEMS, INC. 23 7.5V Power SupplyPC compatibleRF signal generator 6. COMPLIMENTARY USER ALIGNMENT The above parameters only can be aligned under dealer login and most of them should be critical for proper radio performance. Additional complimentary parameters should be also aligned on user login mode; it means the user can align it as per the most convenient way for particular radio usage. 6.1. OPTION ALIGNMENT:

To access to the option alignment menu, select Edit then Option form the main software toolbar:

Figure 26: Optional Alignment Access As soon as you click on Options the Options screen is popped up:

Figure 27: Option Alignment Screen From this screen the user can adjust:

6.1.1. ANALOG Microphone gain:

It aligns microphone sensitivity. Figure 28: Analog Mic Gain Selection Alignment step is 3.2dB. For noisy environments, or when voice encryption is used, we recommend keeping it as low as possible. Press [OK] to store it in the file. The value will be updated after the file is transferred to the radio. ST-3118C SM R 1.1 SMARTRUNK SYSTEMS, INC. 24 6.1.2. ANALOG External Mic Gain:

It aligns external microphone Accessory Port) sensitivity. Default factory value is 0.0dB. Figure 29: External Microphone Sensitivity Alignment Alignment step is 3.2dB. For noisy environments or when voice encryption is used, we recommend keeping it as low as possible. Press [OK] to store it in the file. The value will be updated after the file is transferred to the radio. 6.1.3. Analog AGC ST-3118 has an Automated Gain Control for analog microphone. This function adjusts the gain to reach a dynamic gain value, which makes the analog voice deviation be equivalent to the right deviation produced by 50mV RMS on the microphone the selected target gain. If you want to use AGC, then you must select the target equivalent gain on the Mic Gain then check the ACG Check Box. output, and For example, if you want a dynamic gain which causes the same effect that a gain of 6.4dB when the voice on the microphone causes 50mV RMS in the microphone switch output (standard voice at 4 inches away from the microphone), or 0dB gain on the external microphone connection, then you must program the Analog Gain at 6.4dB and check AGC as bellow:

Figure 30: Analog Microphone AGC Control Press [OK] to store it in the file. The value will be updated after the file is transferred to the radio. 6.1.4. DIGITAL AGC ST-3118 has an Automated Gain Control for digital microphone path. This function adjusts the gain to reach a dynamic gain value, which makes the voice to be equivalent to the right voice digitally played back in the other end, produced by 50mV RMS on the microphone output, and the selected target gain. If you want to use AGC, then you must select the target equivalent ST-3118C SM R 1.1 SMARTRUNK SYSTEMS, INC. 25 gain on the Mic Gain then check the Digital ACG Check Box. For example, if you want a dynamic gain which causes the same effect that a gain of 15.0dB when the voice on the microphone causes 50mV RMS in the microphone switch output (standard voice at 4 inches away from the microphone), or 6.0dB gain on the external microphone connection, then you must program the Digital Gain at 15.0dB and the external gain on 6.0dB, then check Digital AGC as bellow:

Figure 31: Digital Microphone Path AGC Control Press [OK] to store it in the file. The value will be updated after the file is transferred to the radio. 6.1.5. MINIMUM VOLUME LEVEL:

This alignment lets the user to ensure the speaker level should be audible, evenly when the volume control potentiometer is fully closed counter clockwise. It can be aligned up to 250 (max) step 1. supports 6.1.6. SQUELCH LEVEL:

ST-3118 individual squelch alignment for any channel to be programmed individually on each frequency defined into the frequency chart of each bank. On this way, the user can set a higher threshold level for noisy channels and lower for clear channels. Once programmed, if due to the proximity of the radio to a noisy environment the squelch level is not high enough, the user can adjust a common reference the channels in the radio by adjusting the general squelch level. Option screen on the edit menu, lets you to program the default squelch the channels. This value can be adjusted on the fly for the user if the dealer program on squelch control key or navigating through the radio menu. To set a desired squelch reference, please select you desired squelch level form the list:

reference for all for all Figure 32: Squelch Level Setting Screen Press [OK] to store it in the file. The value will be updated after the file is transferred to the radio. ST-3118C SM R 1.1 SMARTRUNK SYSTEMS, INC. 26 radio 6.1.7. DISABLE RF POWER Use this box to check when you do not want to use the RF power amplifier. It is commonly used for dealers to make a demonstration of the features without interfering to any other existing user in for antenna operation without connected to the radio. To disable the RF power amplifier, check the box:

frequency or the Press [OK] to store it in the file. The value will be updated after the file is transferred to the radio. ST-3118C SM R 1.1 SMARTRUNK SYSTEMS, INC. 27 7. RADIO APPEARANCE ALIGNMENT login radio Under user mode, appearance can be aligned. Select Edit then appearance from radio top toolbars to access to the appearance screen:

auto 7.1.1. Auto backlight delay alignment:

The backlight mode, automatically set on power off status to the backlight, after any event, the battery demand. To change the value of the delay before the backlight is powered off;

please enter the quantity of desired seconds for it. reduce to 7.1.2. Power on Text:

Type here the text to show on the display when the radio is powered on. This string is very convenient for radio or dealer advertising at the time the radio is powered on. The option to activate or deactivate the power on text is disabled. identification 7.1.3. Leds:

Allows the user to disable the function of Rx and TX led. Some application, as security, sometime demands no lights on the radio. 7.2. Tones Figure 33: Access to the Appearance Menu A soon as Appearance option is selected, a new window will pop up:

Figure 34: Display/Leds Appearance Screen 7.1. DISPLAYS AND LEDS:

This screen lets you adjust the behavior of the display backlight, Power On text and TX/RX LEDs. ST-3118C SM R 1.1 SMARTRUNK SYSTEMS, INC. 28 Second folder on appearance screen allows the user to adjust the tones, which are played back in any event. will play back any annunciation message for some important events, as per the associated check box. of Voice annunciation can adjusted as per user request. language the be events and Figure 35: Courtesy Tones Programming Screen Tones can be changed by the dealer. Please refer to appendix II to learn about it. Check Key PTT if you want to play back a key tone acknowledge any time PTT key is pressed. Check DeKey PTT if you want to play back a key tone acknowledges any time PTT is released. Check Keypad if you want to play back a key tone acknowledge any time any keyboard key is pressed. Check Pre TOT if you want to play back a key tone acknowledge any time out timer is close to expire (5 seconds ahead). Check Rotary if you want to play back a key tone acknowledges any time the rotary switch changes its position. 7.3. ANNUNCIATION Third folder on appearance screen, allows the user to define if the radio Figure 36: Annunciations Programming Screen Check Bank if you want the radio plays a concerning message back any time current bank has been changed. Check Channel if you want the radio plays a concerning message back any time current channel has been changed. Check Squelch mode if you want the radio plays a concerning message back any time squelch function is changed. Battery level announcement has no action into ST-3118 Check Power if you want the radio plays a concerning message back any time power level (high, med, low or auto) has been changed. Check GPS if you want the radio plays a concerning message back any time the GPS changes the ST-3118C SM R 1.1 SMARTRUNK SYSTEMS, INC. 29 status: Powered on, Powered Off, Fix, etc. Check RSSI if you want the radio plays a concerning message back any time you ask for current RSSI. Press OK once you finish setting all desired messages. This feature will be stored into the file then it will be transferred to the radio at the time the file is uploaded to the radio. ST-3118C SM R 1.1 SMARTRUNK SYSTEMS, INC. 30 Notes:

ST-3118C SM R 1.1 SMARTRUNK SYSTEMS, INC. 31 Copyright 2014 Printed in Malaysia www.smartrunk.com ST-3118C SM R1.1 Jan-14 FCC Notices FEDERAL COMMUNICATIONS COMMISSION INTERFERENCE STATEMENT This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

-Reorient or relocate the receiving antenna.

-Increase the separation between the equipment and receiver.

-Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.

-Consult the dealer or an experienced radio/ TV technician for help. CAUTION:

Any changes or modifications not expressly approved by the grantee of this device could void the user's authority to operate the equipment Use only shielded cables to connect I/O device to this equipment. You are cautioned that changes or modifications not expressly approved by the party responsible for compliance could void your authority to operate the equipment. RF exposure warning This equipment must be installed and operated in accordance with provided instructions and the antenna(s) used for this transmitter must be installed to provide a separation distance of at least 105 cm from all persons and must not be co-located or operating in conjunction with any other antenna or transmitter. End-users and installers must be provide with antenna installation instructions and transmitter operating conditions for satisfying RF exposure compliance.