FCC ID: DBZHMA79 Wireless Microphone Transmitter

INSTRUCTION MANUAL HMa Wideband Plug-On Transmitter With Digital Hybrid Wireless Technology HMa, HMa-941, HMa/E01, HMa/E01-B2, HMa/E02, HMa/E06, HMa/E07-941, HMa/X Digital Hybrid Wireless US Patent 7,225,135 Fill in for your records:

Serial Number:

Purchase Date:

Rio Rancho, NM, USA www.lectrosonics.com 2 Thank you for selecting a Lectrosonics HMa Plug-On transmitter. The unique design provides several distinct features for professional applications:

Outstanding RF operating range Superb audio quality Corrosion-resistant housing Programmable compatibility modes for use with a wide variety of different receivers The Digital Hybrid Wireless design (US Patent 7,225,135) combines 24-bit digital audio with analog FM resulting in a system that has the same operating range as analog systems, the same spectral efficiency as analog systems, the same long battery life as analog systems, plus the excellent audio fidelity typical of pure digital systems. The transmitter uses a standard 3-pin XLR input jack for use with any microphone with a a mating XLR connec-

tor. An LCD, membrane switches and multi-color LEDs on the control panel make input gain adjustments and frequency and compatibility mode selection quick and accurate, without having to view the receiver. The hous-

ing is machined from a solid aluminum block to provide a lightweight and rugged package. A special non-corro-

sive finish resists salt water exposure and perspiration in extreme environments. The DSP-based design works with all Digital Hybrid receivers, and is backward compatible for use with Lec-

trosonics 200 and 100 Series, Mode 3, Mode 6, Mode 7, and IFB receivers and some other brands of analog wireless receivers. Companion receivers are covered in separate manuals. Your Lectrosonics representative can guide you through any compatibility concerns. Table of Contents General Technical Description ......................................... 4 Digital Hybrid Wireless Technology ................................ 4 No Pre-Emphasis/De-Emphasis ...................................... 4 Low Frequency Roll-Off ................................................... 5 Input Limiter ..................................................................... 5 Signal Encoding and Pilot Tone ....................................... 5 Microprocessor and DSP ................................................. 5 Compatibility Modes ......................................................... 5 Control Panel ................................................................... 5 Controls and Functions .................................................... 6 LCD Screen ..................................................................... 6 Power LED ....................................................................... 6 Audio Input Jack ............................................................... 6 Battery Compartment....................................................... 6 USB Port .......................................................................... 6 IR Port .............................................................................. 6 Modulation LEDs .............................................................. 6 Audio Button .................................................................... 6 Freq Button .............................................................. 6 UP/DOWN Arrows and Panel Lockout ............................. 6 Antenna ............................................................................ 6 Battery Installation ............................................................ 7 Attaching/Removing a Microphone ................................. 7 Operating Instructions ...................................................... 8 Power Up and Boot Sequence ......................................... 8 Power Down ..................................................................... 8 Automatic Power Restore ................................................. 8 Standby Mode .................................................................. 8 UP Button Menu ............................................................... 8 DOWN Button Menu ........................................................ 9 AUDIO Button Settings .................................................... 10 FREQ Button Settings ...................................................... 11 Block 470/19 Frequency Overlap ..................................... 11 Lock/Unlock Screen ......................................................... 12 Remote Control with Dweedle Tones ............................. 12 LectroRM ............................................................................ 13 Accessories ....................................................................... 14 P/N 21750 Barrel Adapter ................................................ 14 MCA-M30 Barrel Adapter ................................................. 14 PHTRAN3 ........................................................................ 14 MCA5X ............................................................................. 14 MCA-TPOWER ................................................................ 14 Specifications and Features ............................................. 15 Firmware Update ............................................................... 16 Troubleshooting ................................................................. 18 Service and Repair ............................................................ 20 Returning Units for Repair ............................................... 20 EU Declaration of Conformity .......................................... 21 FCC Compliance:

This device complies with FCC radiation exposure limits as set forth for an uncontrolled environment. This device should be installed and operated so that its antenna(s) are not co-located or operating in conjunction with any other antenna or transmitter. Notice to the End User:

The normal condition of using this device is to keep the hand at least 20mm away from the base of the microphone. 3 General Technical Description The HMa transmitter uses a DSP controlled input limiter featuring a wide range dual envelope design which cleanly limits input signal peaks over 30 dB above full modulation. Switching power supplies to provide con-

stant voltages to the transmitter circuits from the begin-

ning (3 Volts) to the end (1.7 Volts) of battery life, and an ultra low noise input amplifier for quiet operation. Digital Hybrid Wireless Technology All wireless links suffer from channel noise to some de-

gree, and all wireless microphone systems seek to mini-

mize the impact of that noise on the desired signal. Con-

ventional analog systems use compandors for enhanced dynamic range, at the cost of subtle artifacts (known as pumping and breathing). Wholly digital systems defeat the noise by sending the audio information in digital form, at the cost of some combination of power, bandwidth and resistance to interference. Lectrosonics Digital Hybrid Wireless systems over-

come channel noise in a dramatically new way, digitally encoding the audio in the transmitter and decoding it in the receiver, yet still sending the encoded informa-

tion via an analog FM wireless link. This proprietary algorithm is not a digital implementation of an analog compandor but a technique that can be accomplished only in the digital domain, even though the inputs and outputs are analog. Channel noise still impacts received signal quality and will eventually overwhelm a receiver. Digital Hybrid Wireless simply encodes the signal to use a noisy channel as efficiently and robustly as possible, yield-

ing audio performance that rivals that of wholly digital systems, without the power and bandwidth problems inherent in digital transmission. Because it uses an analog FM link, Digital Hybrid Wireless enjoys all the benefits of conventional FM wireless systems, such as excellent range, efficient use of RF spectrum, and resistance to interference. However, unlike conventional FM systems, it does away with the analog compandor and its artifacts. No Pre-Emphasis/De-Emphasis The Digital Hybrid Wireless design results in a signal-to-

noise ratio high enough to preclude the need for con-

ventional pre-emphasis (HF boost) in the transmitter and de-emphasis (HF roll-off) in the receiver. This eliminates the potential for distortion on signals with abundant high-frequency information. Low Frequency Roll-Off The low frequency roll-off can be set for a 3 dB down point at 35, 50, 70, 100, 120 and 150 Hz to control subsonic and very low frequency audio content in the audio. The actual roll-off frequency will vary slightly depending upon the low frequency response of the microphone. Excessive low frequency content can drive the trans-

mitter into limiting, or in the case of high level sound systems, even cause damage to loudspeaker systems. The roll-off is normally adjusted by ear while listening as the system is operating. Input Limiter A DSP-controlled analog audio limiter is employed before the analog-to-digital (A-D) converter. The limiter has a range of more than 30 dB for excellent overload protection. A dual release envelope makes the limiter acoustically transparent while maintaining low distor-

tion. It can be thought of as two limiters in series, a fast attack and release limiter followed by a slow attack and release limiter. The limiter recovers quickly from brief transients, with no audible side effects, and also recovers slowly from sustained high levels, to keep audio distortion low and while preserving short term dynamics. Signal Encoding and Pilot Tone In addition to controlling the limiter, the DSP also encodes the digitized audio from the A-D converter and adds an ultrasonic pilot tone to control the re-

ceivers squelch. A pilot tone squelch system provides a reliable method of keeping a receiver output muted

(squelched) even in the presence of significant inter-

ference. When the system is operating in the hybrid mode, a different pilot tone frequency is generated for each carrier frequency in 100 kHz increments to prevent inadvertent squelch problems and simplify multi-channel coordination. Microprocessor and DSP A microprocessor monitors user command inputs from the control panel buttons and numerous other internal signals. It works intimately with the DSP to ensure the audio is encoded according to the selected Compatibil-

ity Mode and that the correct pilot tone is added to the encoded signal. 4 Compatibility Modes The transmitter was designed to operate with Lectro-

sonics Digital Hybrid Wireless receivers and will yield the best performance when doing so. However, due to the flexibility of digital signal processing, the transmit-

ters can also operate in various compatibility modes

(vary per specific model) for use with Lectrosonics Mode 3 and IFB receivers. It will also work with certain non-Lectrosonics receivers. Contact your sales repre-

sentative or the factory for a complete list of compat-

ible non-Lectrosonics receivers. Control Panel The control panel includes four membrane switches and an LCD screen to adjust the operational settings. Multi-

color LEDs are used to indicate audio signal levels for accurate gain adjustment and for battery status. 5 Controls and Functions Modulation LEDs LCD UP Arrow Compartment Battery Input Coupler XLR Input Jack LCD Screen PWR LED AUDIO Button FREQ Button DOWN Arrow The LCD is a numeric-type Liquid Crystal Display with several screens that allow settings to be made with the AUDIO and FREQ buttons, and the UP and DOWN arrow buttons to configure the transmitter. The trans-

mitter can be turned on in a standby mode with the carrier turned off to make adjustments without the risk of interfering with other wireless systems nearby. Power LED The PWR LED glows green when the batteries are good. The color changes to red when there is about 20 minutes of life left. When the LED begins to blink red, there are only a few minutes of life. A weak battery will sometimes cause the PWR LED to glow green immediately after being put into the unit, but will soon discharge to the point where the LED will go red or shut off completely. Audio Input Jack The XLR input jack on the transmitter accommodates hand-held, shotgun and measurement microphones. Phantom power can be set at various levels for use with a wide variety of electret microphones. Battery Compartment The battery compartment door is made of machined aluminum and is hinged to the housing to prevent it being damaged or lost. USB Port for firmware updates in the field. USB Port IR Port IR (infrared) port for fast setup. Antenna 6 Modulation LEDs The Modulation LEDs provide a visual indication of the input audio signal level from the microphone. These two bicolor LEDs can glow either red or green to indi-

cate modulation levels. Full modulation (0 dB) occurs when the -20 LED first turns red. Signal Level

-20 LED

-10 LED Less than -20 dB

-20 dB to -10 dB

-10 dB to +0 dB

+0 dB to +10 dB Greater than +10 dB Audio Button Off Green Green Red Red Off Off Green Green Red The AUDIO button is used to display the audio level setting, low frequency roll-off and phantom power mode. Repeatedly pressing the button will cycle through the available settings, allowing the UP and DOWN arrow buttons to adjust the values. Freq Button The FREQ Button displays the selected operating fre-

quency and also toggles the LCD between displaying the actual operating frequency in MHz and a two-digit hexadecimal number. Frequencies can be selected in either 100kHz or 25kHz steps. The appearance of the hexadecimal number is different in the 100kHz step size mode than in the 25kHz step size mode. NOTE: The FREQ and AUDIO buttons are used together to enter the standby mode and to turn the power on or off. UP/DOWN Arrows and Panel Lockout The UP and DOWN arrow buttons are used to select the operating frequency, adjust the audio level, or set the Compatibility Mode. Pressing both arrows simultaneously enters the lock countdown. Holding the two buttons in until the count-

down is completed locks the control panel buttons so they can only be used to display current settings. Loc is displayed to indicate the controls are locked when a button is pressed while the panel is locked. Once locked, the control panel is unlocked by remov-

ing the battery or using the remote control dweedle tones. An antenna is formed between the housing and the attached microphone, operating much like a dipole. At UHF frequencies the length of the housing is similar to 1/4 wavelength of the operating frequency, so the an-

tenna is surprisingly efficient, which helps extend the operating range and suppress noise and interference. Attaching/Removing a Microphone The spring loaded coupler under the XLR jack main-

tains a secure fit to the microphone jack with continu-

ous pressure applied by an internal spring. To attach the microphone, simply align the XLR pins and press the microphone onto the transmitter until the coupler retracts and latches. A click sound will be heard as the connector latches. To remove the microphone, hold the transmitter body in one hand with the microphone pointing upward. Use your other hand to rotate the coupler until the latch releases and the coupler rises slightly. Do not pull on the microphone while releasing the locking collar. TO ATTACH Press firmly, listen for click. Depress collar fully. Click!

TO REMOVE Hold the transmitter case with the microphone pointed upward. Rotate the collar in the direction shown. Pull on mic to ensure it is locked. NOTE: Do not hold or apply any pressure to the microphone body while trying to remove it, as this may prevent the latch from releasing. Battery Installation The transmitter is powered by two AA batteries. Note: Standard zinc-carbon batteries marked heavy-duty or long-lasting are not adequate. Batteries operate in series, with a connecting plate built into the battery door To install new batteries:

1. Slide open the Battery Cover and remove any old batteries. 2. Insert the new batteries into the housing. One bat-

tery goes in positive (+) end first, the other negative

(-) end first. Look into the battery compartment to determine which end goes in which side. The side with the circular insulator is the side which accepts the positive end of the battery. positive (+) terminal negative () terminal Note: It is possible to install the batteries backward and close the battery door, but the batteries will not make contact and the unit will not work. 3. To close the door, press it inward, flush with the housing, then slide it back into place until it snaps securely shut. 7 Automatic Power Restore The firmware will remember the power on/off state and the settings when batteries reach their end of life or are removed. When fresh batteries are installed, the unit will reboot and return to the previous set-

tings without the need to press any buttons. This only works when the unit is fully on and transmitting. It does not work in the Standby Mode. Standby Mode Standby Mode allows you to Standby Screen verify or change the transmitters operating frequency or audio input level without transmitting a signal. Quickly press and release both the AUDIO and FREQ buttons simulta-

neously to enter and exit this mode. The characters rF OFF will appear on the LCD while the unit is in the standby mode. UP Button Menu Hold the UP button while powering up the unit. Hold Then press the AUDIO button repeatedly to scroll through the settings. Use the UP and DOWN arrow to select the available options under each setting. Compatibility Mode Screen (Up Button Menu) CP (Compatibility Mode);

press the UP and DOWN arrows to select one of the following:

Note: RF transmission is prevented while selecting Compatibility Modes. Also, the HM exits this screen to the Standby Mode. nHb - For Digital Hybrid Wireless receivers. 3 - (Mode 3) For non-Lectrosonics analog receiv-

ers. Contact the the factory for details. IFB - For Lectrosonics IFB receivers. While in the compatibility mode screen, pressing either the AUDIO or FREQ button exits to standby mode. To power off from the compatibility mode screen, press and hold AUDIO and FREQ together. Operating Instructions Modulation LEDs UP Arrow PWR LED AUDIO Button FREQ Button DOWN Arrow Power Up and Boot Sequence 1) Ensure that good batteries are installed in the unit. 2) Simultaneously press and hold the AUDIO and FREQ buttons. Continue holding the buttons until On and the characters 1, 2, 3 have appeared. The boot sequence will then initiate. As the unit turns on, the Modulation LEDs and PWR LED all glow red, then green, and then they revert to normal operation. Initial Power On Timer Screen Category:

Company Name:

Frequency Band (XX) and Firmware Version (rX.XX):

Compatibility Mode:

RF Power Output:

Operating Frequency Example Lectro A1 r1.00 CP 400 100 482.875 Power Down Simultaneously press and hold the AUDIO and FREQ buttons. Continue holding the buttons until OFF and the countdown characters 3, 2, 1 have ap-

peared. The unit will then power down. Initial Power Off Timer Screen If the AUDIO and FREQ buttons are released before the LCD goes blank at the end of the countdown, the unit will not turn off. Instead, it will stay on and the LCD will return to the previous screen. NOTE: If batteries are removed or reach the end of life while the unit is turned on, the unit will turn back on with a brief, simultaneous press of the AUDIO and FREQ buttons. The counting sequence will not be displayed in this instance. 8 The LCD displays a bootup sequence which con-

sists of five screens:

Then press both RF Power Output (Up Button Menu) Pr (RF Power output) may be selected as:

HMa:

HMa/E01:

HMa/E02:

HMa/E06:

HMa-941:

Selectable 100 or 25 mW Selectable 25 or 50 mW 10 mW Selectable 50 or 100 mW EIRP Selectable 50 or 100 mW If a remote control signal is detected but the function is turned off, the message rc oFF will be displayed briefly on the transmitters LCD to confirm that a valid signal was received, but that the remote control func-

tion is not enabled. HMa transmitter settings that can be adjusted:

Selecting the Audio Polarity (Up Button Menu) NOTE: The audio polarity can also be reversed at the output of most Lectrosonics receivers. The character P denotes positive polarity and the character n denotes negative polarity. Selecting Step Size mode (Up Button Menu) The frequency increments can be set at either 25 kHz or 100 kHz. Hold the UP arrow in while powering up the unit to enter the setup screen. Press the AUDIO button repeatedly to step through the setup items to reach the Step Size Mode screen. Use the UP or DOWN arrow button to select the desired setting. DOWN Button Menu Hold the DOWN button while powering up the unit. Hold Then press both Then press the AUDIO button repeatedly to scroll through the setup screens. Use the UP and DOWN ar-

row to select the available options for each setting. Remote Control Enable Dweedle Tones rc on allows the transmitter to respond to audio signals

(dweedle tones) delivered to the microphone from a smart phone app. rc oFF disables this function. Audio input level (gain) Operating frequency Panel Lock/Unlock RF power output Low frequency roll-off filter Power LED on/off The LectroRM Smart Phone App is used almost exclusively for remote control. See the section entitled Remote Control with Dweedle Tones on page 12 for more information. Power Back On (DOWN Button Menu) PbAc (Power back on after power loss) sets the unit to either (1) turn back on after power loss or (0) remain off. LCD Backlight Setting (Down Button Menu) The LCD backlight can be set to turn off after either 5 minutes or 30 seconds or stay on continuously. Hold the DOWN arrow in while powering up the unit to enter the setup screen. Press the AUDIO button repeatedly to step through the setup items to reach the backlight settings screen. Use the UP or DOWN arrow button to select the desired setting. Band/Legacy Block 606 Setting(Down Button Menu) Allows access to either the full C1 bnad or only a por-

tion of Block 606. When using a a Block 606 receiver such as an SRb/E01-606 or a UCR411a-606, the pilot tones must match for the receiver to recognize the signal from the tranmsitter. NOTE: This function is only available for the HMA/E01-C1. 9 AUDIO Button Settings Press the AUDIO button repeatedly to select the setting. Each time the button is released, the screen will switch to the next setting. Press and hold the button when the desired setting appears on the screen, then use the UP and DOWN arrow buttons to adjust the setting. 5) If the unit was set up in Standby Mode, it will be necessary to turn the transmitter off, then power it up again in normal operation so the RF output will be on. Then the other components in the sound or recording system can be adjusted. Adjusting the Low Frequency Roll-off The roll-off frequency can be set to 35, 50, 70, 100, 120 or 150 Hz. This setting is often made while listening to the audio while selecting the setting. Selecting the Phantom Power Supply Adjusting the Input Gain The control panel Modulation LEDs indicate the modulation level and limiter activity. This gain adjustment matches the transmitter gain with the microphones output level, the users voice level and the position of the microphone. Once set, the transmitters audio level setting should not be used to control the volume of your sound system or recorder levels. The audio input level can be set with the unit in Standby Mode or while powered up in normal operation. Signal Level

-20 LED

-10 LED Less than -20 dB

-20 dB to -10 dB

-10 dB to +0 dB

+0 dB to +10 dB Greater than +10 dB Off Green Green Red Red Off Off Green Green Red Note: Voice levels vary significantly between different people. If several different people will be using the transmitter and there is not time to make the adjustment for each individual, adjust it for the loudest voice. 1) With the HMa powered off, insert the microphone plug into the XLR Input Jack, aligning the pins and ensuring that the connector locks. 2) Place the transmitter in the Standby Mode, or if the unit is to be powered up and adjusted, mute the main sound system prior to powering up the transmitter. 3) Position the microphone in the location where it will be used in actual operation. 4) Observe the audio level LEDs while speaking or singing into the microphone at the same voice level that will be used during use. While holding the AUDIO button, press the UP or DOWN arrows until the both the -20 and -10 LEDs glow green, with the

-20 LED flickering red on louder peaks. This will optimize the signal to noise ratio of the system with full modulation and adequate headroom to prevent overload and audible compression of signal peaks. Note: Setting the audio level too high reduces the dynamic range of the audio signal. Setting the audio level too low may cause hiss and noise in the audio. 10 The transmitter input jack can provide phantom power for the attached microphone if needed, with voltages at 5, 15 or 48. Phantom power will consume a slight amount of battery power, so it can also be turned off. Selecting the Phantom Power Supply (Audio Screen Menu) The transmitter input jack can provide phantom power for the attached microphone if needed, with voltages at 5, 15 or 48. Phantom power will consume a slight amount of battery power, so it can also be turned off. With the transmitter powered on and in the normal or standby mode, press and hold the audio button and observe the LCD. Release the button and press and hold it again. Repeat this process until the display indicates the PH. Once you get to the PH setting, keep the AUDIO but-

ton pressed, then use the UP and DOWN arrow keys to cycle through the available settings (off, 5, 15, 48 volts) until the desired setting is displayed. When you release the AUDIO button, the setting will be stored to the value you selected. About the Phantom Power Supply Three phantom voltages are selectable from the con-

trol panel. The voltages are:

5 Volts for lavaliere microphones, 15 Volts for some professional mics requiring high current and for many common stage mics that will operate over a wide phantom Voltage range of 12 to 48 Volts. With the proper adapter, this position can also be used with T power micro-

phones. See our web site for details on finding or making the proper adapter. 48 Volts for microphones that do in fact require a supply greater than 18 Volts. (See following for a discussion of why 42 and not a true 48 Volts.) For longest battery life use the minimum phantom volt-

age necessary for the microphone. Many stage micro-

phones regulate the 48 Volts down to 10 Volts internally anyway, so you might as well use the 15 Volt setting and save some battery power. If you are not using a micro-

phone for the input device, or are using a microphone that does not require phantom power, turn the phantom power off. Phantom power should only be used with a fully float-

ing, balanced device such as most microphones with a 3-pin XLR connector. If you use the phantom power with an unbalanced device or if pins 2 or 3 are DC con-

nected to ground, then you will draw maximum current from the power supply. The HM is fully protected against such shorts but the batteries will be drained at twice the normal rate. The transmitter can supply 4 mA at 42 Volts, 8 mA at 15 Volts, and 8 mA at 5 Volts. The 42 Volts setting actually supplies the same voltage to a 48 Volt microphone as the DIN standard arrangement due to a dynamic bias-

ing scheme that does not have as much voltage drop as the DIN standard. The 48 Volt DIN standard arrange-

ment protects against shorts and high fault current with high resistance in the power supply feeds to pins 2 and 3. This provides protection if the supply current is ac-

cidentally shorted to ground and also keeps the micro-

phone from being attenuated by the power supply. The HMa improves on those functions and is able to use less power from the battery by using constant current sources and current limiters. With this dynamic arrangement the HMa can also supply more than twice the current of competing 48 Volt plug on units and pro-

vide four times the current for some very high end 15 Volt microphones. Block 470/19 Frequency Overlap Frequencies 486.400 - 495.600 Overlap in Blocks 470 and 19 Block 470 and block 19 overlap each other in the frequency range from 486.400 to 495.600 MHz. Since block 470 starts at a lower frequency than block 19, the hex codes (and pilot tones) will not match even though the frequencies are the same in the overlap zone. When using a transmitter on the A1 band with a block 19 receiver, be sure the transmitter is set to block 19 and check the hex code on the re-

ceiver to make sure it matches the transmitter. Call the factory for further questions on this issue. Set Up in 100kHz Step Size Frequency displayed in MHz Frequency displayed as two-digit hexadecimal number for normal operation. Set Up in 25kHz Step Size The operating frequency can be displayed either in MHz or as a two-digit hexadeci-

mal number. The example of the two-digit display shown here indicates CH

(channel) and 2C as the frequency. The frequency can be set with the unit in standby mode or when powered up Frequency expressed in MHz FREQ Button Settings Press the FREQ button on the Control Panel to enter this setup screen. The display will vary depending upon which StepSize setting is selected. See Selecting Step Size on page 9. The hexadecimal display in the 25 kHz mode will appear with a decimal suffix to indicate the 25 kHz steps. Frequency in hex Note: The default display is in MHz. Pressing the FREQ button again displays the operating frequency as a two-digit hexadecimal number that corresponds to legacy Lectrosonics products that used two 16-position switches to set the frequency. While holding the FREQ button, use the UP or DOWN arrow buttons to change the frequency. Examples:

Standard frequency block (20) Frequency in hex code (F6) Offset in MHz (.25) Note: The operating frequency displayed on the LCD wraps as it reaches the upper or lower end of its range. 475.875 MHz 490.225 MHz 487.650 MHz 509.200 MHz 11 Lock/Unlock Screen Remote Control with Dweedle Tones Simultaneously pressing and holding both the UP and DOWN arrow buttons during normal operation starts the LOCK timer. The timer starts at three and counts down to zero. When the timer reaches zero, the keypad controls are locked. The LCD will display the locked condition as long as the arrow buttons are held, then revert back to the previous screen when either button is released. With the controls locked, the AUDIO and FREQ but-

tons can still be used to display current settings. Any attempt to change a setting by pressing either the UP or DOWN arrow button will result in an on-screen Loc reminder that the controls are locked. NOTE: The control panel can be unlocked by removing the batteries or using the dweedle tone remote control. Various settings on the transmitter can be adjusted with special audio tones (dweedle tones) delivered to the microphone. The tones are generated by a smart phone using the LectroRM app. LectroRM is a third party application written by New Endian for iOS and Android smart phones that gener-

ates the control tones for the remote control functions. The app is available for purchase from the App Store or Google Play for about $20. HMa transmitter settings that can be adjusted:

Audio input level (gain) Operating frequency Panel Lock/Unlock RF power output Low frequency roll-off filter Power LED on/off Enable the remote control function by holding the DOWN arrow then pressing the AUDIO and FREQ buttons at the same time. Use the arrow buttons to select on to enable the function, or oFF to disable the function. If a remote control signal is detected but the function is turned off, the message rc oFF will be displayed briefly on the transmitters LCD to confirm that a valid signal was received, but that the control function is not enabled. If a remote control setting is delivered to the transmitter that is not available, such as SLEEP/

UNSLEEP in the HMa, the display on the transmitter will show and then return to the previous screen. The usable distance between the microphone and the smart phone will vary with the input gain setting on the transmitter and the volume control setting on the smart phone. NOTE: Any microphone/transmitter within range of the smart phone will hear and execute the remote control command. Be careful to make sure only the desired microphone/transmitter is within range when delivering the audio tone. 12 LectroRM By New Endian LLC LectroRM is a mobile application for iOS and Android operating systems. Its purpose is to remotely control Lectrosonics Transmitters, including:

Android SM Series WM L Series HMa, HMa/E01 The app remotely changes settings on the transmit-

ter through the use of encoded audio tones, which when received by the attached microphone, will alter the configured setting. The app was released by New Endian, LLC in September 2011. The app is available for download and sells for $25 on the Apple App Store and Google Play Store. LectroRMs remote control mechanism is the use of an audio sequence of tones (dweedles) that are interpret-

ed by the transmitter as a configuration change. The settings available in LectroRM are:

Audio Level Frequency Sleep Mode Lock Mode User Interface The user interface involves selecting the audio se-

quence related to the desired change. Each version has an interface for selecting the desired setting and the desired option for that setting. Each version also has a mechanism to prevent accidental activation of the tone. iOS The Android version keeps all settings on the same page and allows the user to toggle between the activation buttons for each setting. The activation button must be long pressed to activate. The Android version also allows users to keep a configurable list of full sets of settings. Activation For a transmitter to respond to remote control audio tones, the transmitter must meet certain requirements:

The transmitter must not be turned off; it can however be in sleep mode. The transmitter must have firmware version 1.5 or later for Audio, Frequency, Sleep and Lock changes. The transmitter microphone must be within range. The transmitter must be configured to enable remote control activation. Please be aware this app is not a Lectrosonics product. It is privately owned and operated by New Endian LLC, www.newendian.com. The iPhone version keeps each available setting on a separate page with the list of options for that setting. On iOS, the Activate toggle switch must be enabled to show the button which will then activate the audio. The iOS versions default orientation is upside-down but can be configured to orient right-side up. The purpose for this is to orient the devices speaker, which is at the bottom of the device, closer to the transmitter microphone. 13 Accessories P/N 21750 Barrel Adapter PHTRAN3 Replacement leather pouch with clear plastic screen cover, rotating belt clip and snap closure. Included with transmitter at purchase. Mic adapter for Earthworks M30 micro-

phone with HM, HMa and UH400a/TM transmitters. This polarity reversing adapter may be needed to correct for asymmetrical cur-

rent draw in some P48 powered condenser microphones, including older Neumann 100 Series, Rode NTG3 and others. If your microphone does not power on correctly when used with these transmitters, insert the adapter between the transmitter and microphone. MCA-M30 Barrel Adapter 0 3 M s k r o w h t r a E r e t p a d A l e r r a B This adapter may be needed if you are experiencing noise or distortion with measurement microphones, particularly the Earthworks M30. The adapter has a common mode choke for suppressing RF noise. If your microphone signal exhibits the problems listed above when connected to a UH400, HM or HMa transmitter, insert the adapter between the microphone and the transmitter. Insert the adapter between the transmitter and micro-

phone to alleviate the problems listed above. 14 MCA5X Optional adapter for connecting a lavaliere microphone to the HMa or HM transmitters. TA5M to XLR3-M connectors. Passes transmitter phantom power to bias the electret lavaliere microphone. Includes zener protection to limit bias voltage to protect the microphone if transmitter phantom power is set too high. MCA-TPOWER This cable adapter is to be used with the UH200D, UH400, HM and HMa plug-on transmitters with T-powered microphones. It will protect a T-power mic against the 48V phantom power setting in the transmitter while allowing normal operation. The transmitter should be set to the 15V position for best operation and minimum battery drain. Specifications and Features Operating Frequency Range:

HMa, HMa/X:

HMa/E01:

HMa/E01-B2:

HMa/E02:

HMa/E06:

HMa-941:

HMa/E07-941:

470.100 - 537.575 Band A1:

537.600 - 614.375 Band B1:

614.400 - 691.175 Band C1:

470.100 - 537.575 Band A1:

537.600 - 614.375 Band B1:

563.200 - 639.900 Band B2:

614.400 - 691.175 Band C1:

470.100 - 537.575 Band A1:

537.600 - 614.375 Band B1:

563.200 - 639.975 Band B2:

614.400 - 691.175 Band C1:

470.100 - 537.575 Band A1:

537.600 - 614.375 Band B1:

Band C1:

614.400 - 691.175 Band C2: 640.000 - 716.700 Band B1:

Band C1:

537.600 - 614.375 614.400 - 691.175 941.525 - 951.975 952.875 - 956.225 956.475 - 959.825 941.525 - 951.975 953.025 - 956.225 956.475 - 959.825 NOTE: Its the users responsibility to select the approved frequencies for the region where the transmitter is operating Selectable; 100 kHz or 25 kHz HMa: Selectable 100 or 25 mW HMa/E01: Selectable 25 or 50 mW HMa/E02: 10 mW HMa/E06: Selectable 50 or 100 mW EIRP HMa/E07-941: Selectable 50 or 100 mW HMa-941: Selectable 50 or 100 mW HMa: Nu Hybrid, Mode 3, IFB HMa/E01: Digital Hybrid, Mode 3, IFB HMa/E02: Digital Hybrid, Mode 3, IFB HMa/E06: Digital Hybrid,Mode 3, IFB HMa/E07-941, HMa-941: Digital Hybrid, 200 Series, 100 Series, Mode 3, Mode 6, Mode 7, IFB 25 to 32 kHz; 5 kHz deviation

(in the Digital Hybrid mode) Frequency Selection Steps:

RF Power output:

Compatibility Modes:

Pilot tone:

Frequency stability:

Spurious radiation:

300 422-1 v1.4.2 Equivalent input noise:

Input level:

Input impedance:

Input limiter:

Gain control range:

Modulation indicators:

125 dBV (A-weighted) Nominal 2 mV to 300 mV, before limiting. Greater than 1V maximum, with limiting. HMa/E01/E02/E06/X: 1K Ohm HMa-941: 300 Ohms Dual envelope soft limiter; greater than 30 dB range 55 dB; panel mounted membrane switches Dual bi-color LEDs indicate modulation of -20, -10, 0, +10 dB referenced to full modulation 0.002%

HMa/E01/E02/941/X:

60 dB below carrier HMa: Compliant with ETSI EN Audio Performance (overall system):

Frequency Response:

Low frequency Roll-off:

THD:

Signal to Noise Ratio (dB) at receiver output:

35 Hz to 20 kHz (+/-1dB);

Adjustable for -3dB @30, 50, 70, 100, 120 or 150 Hz) 0.2% (typ. 100 Hz to 20 kHz -

see table) SmartNR no limiting w/limiting OFF NORMAL FULL 103.5 107.0 108.5 108.0 111.5 113.0 125 dB (with full Tx limiting) Power/Phantom ON-OFF Phantom voltage selector Audio input gain LCD w/membrane switches LED audio level indicators Standard 3-pin XLR (female) 5V @ 18 mA max., 15V @ 15 mA max. and 48 V @ 4 mA max., plus OFF Used for firmware updates For quick setup by transferring settings from an IR enabled receiver Housing and attached microphone form the antenna Two 1.5 Volt AA alkaline Note: The dual envelope soft limiter provides exceptionally good handling of transients using variable attack and release time constants. Once activated, the limiter compresses 30+ dB of transmitter input range into 4.5 dB of receiver output range, thus reducing the measured figure for SNR without limiting by 4.5 dB. Input Dynamic Range:

Controls & Indicators:

Audio Input Jack:

Phantom Power:

USB port:

IR (infrared) port:

Antenna:

Battery:

Battery Life (Duracell Ultra):

AA alkaline; No Phantom Power:

AA alkaline; 48V Phantom Power:

Weight:

Dimensions:

Emission Designator:

6.7 oz (190 grams) without batteries 4.25x1.62x1.38 inches 107.95x41.15x35.05 mm A1: 44K3F3E B2: 57K9F3E HMa/E06: 180KF3E

* Tested with a dynamic microphone

** Tested with a Sanken CS1 for a phantom-powered microphone HMa/E07-941: 110KF3E 5h 0m*

3h 30m**

Specifications subject to change without notice. 15 Firmware Update Step 2:

Updating the firmware is a simple matter of download-

ing a utility program and file from the website and running the program on a Windows operating system with the transmitter connected to a computer via the USB port. Go to www.lectrosonics.com. In the top menu, hover the mouse over Support, and click on Wireless Support. On the right-hand-side Wireless Support Menu, choose Wireless Downloads. Choose your product (HMa), then choose Firmware Updates. Step 1:

Begin by downloading the USB Firmware Updater Program. TROUBLESHOOTING:

Next, test the Updater by opening the icon:

driver opens automatically, proceed to Step 3. If the WARNING: If you receive the following error, the Updater is not installed on your system. Follow the TROUBLESHOOTING steps to fix the error. If you receive the FTDI D2XX error shown above, download and install the driver by clicking on this link. Then click here to download. NOTE: This website, http://www.ftdichip.com/

Drivers/D2XX.htm, is not associated with Lectrosonics.com. It is a third party site used only for D2XX drivers currently available for Lectrosonics devices upgrades. 16 Step 3:

Step 7:

Refer to Step 1 to return to Firmware web page. Down-

load Firmware Update and save to a local file on your PC for easy locating when updating. In Lectrosonics USB Firmware Updater, choose the detected device, browse to local Firmware File and click Start. NOTE: It may take up to a minute or so for the Updater to recognize the transmitter. Step 4:

Open Lectrosonics USB Firmware Updater. WARNING: Do not disrupt the microUSB cable during updating. Step 5:

Step 6:

FREQ buttons. Using a microUSB cable, connect the transmitter to your PC. With the unit powered OFF, put the transmitter in UPDATE mode by simultaneously holding down the UP arrow, DOWN arrow, AUDIO and Step 8:

The Updater alerts with progress and completion. Once the Updater has completed, turn off the trans-

mitter, then turn it back on to verify that the firmware version on the transmitter LCD matches the firmware version shown on the web site. The firmware is the second LCD display during bootup sequence. Step 9:

Close Updater and disconnect microUSB cable. 17 Troubleshooting Before going through the following chart, be sure that you have good batteries in the transmitter. It is important that you follow these steps in the sequence listed. SYMPTOM POSSIBLE CAUSE TRANSMITTER PWR LED OFF AUDIO LEVEL LEDs NOT LIGHTING 1) Batteries are inserted backwards or dead. 2) Transmitter not powered up. (See Operating Instructions, Power UP and Boot Sequence.) 1) Gain control set to minimum. 2) Batteries are inserted backwards or dead. Check PWR LED. 3) Mic capsule is damaged or malfunctioning. 4) Mic connector is damaged or mis-wired. RECEIVER RF INDICATOR OFF 1) Transmitter not turned on, or is in Standby Mode. 2) Transmitter batteries are dead. NO SOUND (OR LOW SOUND LEVEL), RECEIVER INDICATES PROPER AUDIO MODULATION DISTORTED SOUND 3) Receiver antenna missing or improperly positioned. 4) Transmitter and receiver not on same frequency. Check switches/display on transmitter and receiver. 5) Transmitter and receiver not on same frequency band. 6) Operating range is too great. 1) Receiver output level set too low. 2) Receiver output disconnected, or cable defective or mis-wired. 3) Sound system or recorder input is turned down. 1) Transmitter gain (audio level) is far too high. Check audio level LEDs and receiver audio levels during use. 2) Receiver output may be mismatched with the sound system or recorder input. Adjust output level on receiver to the correct level for the recorder, mixer or sound system. (Use the receivers Tone function to check level.) 3) Excessive wind noise or breath pops. Reposition microphone and/or use a larger windscreen. 4) Transmitter is not set to same frequency as receiver. Check that operating frequency on receiver and transmitter match. 5) Receiver/Transmitter Compatibility Mode mismatched. EXCESSIVE FEEDBACK 1) Transmitter gain (audio level) too high. Check gain adjustment and/or reduce receiver output level. 2) Talent standing too close to speaker system. 3) Mic is too far from users mouth. 18 SYMPTOM POSSIBLE CAUSE HISS AND NOISE -- AUDIBLE DROPOUTS 1) Transmitter gain (audio level) far too low. 2) Receiver antenna missing or obstructed. 3) Operating range too great. 4) Signal interference. Turn off transmitter. If receivers signal strength indicator does not drop to nearly zero, this indicates an interfering signal may be the problem. Use a clear operating frequency. Loc APPEARS IN DISPLAY WHEN ANY BUTTON IS PRESSED 1) Control Panel is locked. (See Operating Instructions, Locking and Unlocking the Control Panel.) Hold APPEARS IN DISPLAY WHEN ARROW BUTTONS ARE PRESSED Reminder that it is necessary to hold down the AUDIO or FREQ button to make adjustments to the audio gain or frequency settings. PLL APPEARS IN DISPLAY Indication that the PLL is not locked. This is a serious condition that requires factory repair. It may be possible to operate on another frequency far removed from the one that was selected when the unlocked condition was indicated. 19 Service and Repair If your system malfunctions, you should attempt to correct or isolate the trouble before concluding that the equipment needs repair. Make sure you have followed the setup procedure and operating instructions. Check the interconnecting cables and then go through the Troubleshooting section in this manual. We strongly recommend that you do not try to repair the equipment yourself and do not have the local repair shop at-

tempt anything other than the simplest repair. If the repair is more complicated than a broken wire or loose connection, send the unit to the factory for repair and service. Dont attempt to adjust any controls inside the units. Once set at the factory, the various controls and trimmers do not drift with age or vibration and never require readjustment. There are no adjustments inside that will make a malfunctioning unit start working. LECTROSONICS Service Department is equipped and staffed to quickly repair your equipment. In warranty repairs are made at no charge in accordance with the terms of the warranty. Out-of-warranty repairs are charged at a modest flat rate plus parts and shipping. Since it takes almost as much time and effort to determine what is wrong as it does to make the repair, there is a charge for an exact quotation. We will be happy to quote approximate charges by phone for out-of-warranty repairs. Returning Units for Repair For timely service, please follow the steps below:

A. DO NOT return equipment to the factory for repair without first contacting us by email or by phone. We need to know the nature of the problem, the model number and the serial number of the equipment. We also need a phone number where you can be reached 8 A.M. to 4 P.M. (U.S. Mountain Standard Time). B. After receiving your request, we will issue you a return authorization number (R.A.). This number will help speed your repair through our receiving and repair departments. The return authorization number must be clearly shown on the outside of the shipping container. C. Pack the equipment carefully and ship to us, shipping costs prepaid. If necessary, we can provide you with the proper packing materials. UPS is usually the best way to ship the units. Heavy units should be double-boxed for safe transport. D. We also strongly recommend that you insure the equipment, since we cannot be responsible for loss of or dam-

age to equipment that you ship. Of course, we insure the equipment when we ship it back to you. Lectrosonics USA:

Mailing address:

Lectrosonics, Inc. PO Box 15900 Rio Rancho, NM 87174 USA Web:

www.lectrosonics.com Shipping address:

Lectrosonics, Inc. 561 Laser Rd., Suite 102 Rio Rancho, NM 87124 USA E-mail:

sales@lectrosonics.com Telephone:

(505) 892-4501

(800) 821-1121 Toll-free

(505) 892-6243 Fax Lectrosonics Canada:

Mailing Address:

720 Spadina Avenue, Suite 600 Toronto, Ontario M5S 2T9 Telephone:

(416) 596-2202

(877) 753-2876 Toll-free

(877-7LECTRO)

(416) 596-6648 Fax E-mail:

Sales:

Service: joeb@lectrosonics.com colinb@lectrosonics.com 20 EU Declaration of Conformity 21 Industry Canada Compliance:

This device operates on a no-protection no-interference basis. Should the user seek to obtain protection from other radio services operating in the same TV bands, a radio license is required. Please consult Industry Canadas document CPC-2-1-28, Optional Licensing for Low-Power Radio Apparatus in the TV Bands, for details. This device complies with Industry Canada license-exempt RSS standard(s). Op-

eration is subject to the following two conditions:

1. This device may not cause harmful interference;

2. This device must accept any interference received, including interference that may cause undesired operation of the device. Cet appareil est conforme Industrie Canada une licence standard RSS exonrs

(s). Son fonctionnement est soumis aux deux conditions suivantes:

1. Cet appareil ne doit pas provoquer dinterfrences 2. Cet appareil doit accepter toute interfrence reue, y compris les interfrences pouvant provoquer un fonctionnement indsirable de lappareil 22 23 LIMITED ONE YEAR WARRANTY The equipment is warranted for one year from date of purchase against defects in materials or workmanship provided it was purchased from an authorized dealer. This warranty does not cover equipment which has been abused or damaged by careless handling or shipping. This warranty does not apply to used or demonstrator equipment. Should any defect develop, Lectrosonics, Inc. will, at our option, repair or replace any defective parts without charge for either parts or labor. If Lectrosonics, Inc. cannot correct the defect in your equipment, it will be replaced at no charge with a similar new item. Lectrosonics, Inc. will pay for the cost of returning your equipment to you. This warranty applies only to items returned to Lectrosonics, Inc. or an authorized dealer, shipping costs prepaid, within one year from the date of purchase. This Limited Warranty is governed by the laws of the State of New Mexico. It states the entire liablility of Lectrosonics Inc. and the entire remedy of the purchaser for any breach of warranty as outlined above. NEITHER LECTROSONICS, INC. NOR ANYONE INVOLVED IN THE PRODUCTION OR DELIVERY OF THE EQUIPMENT SHALL BE LIABLE FOR ANY INDIRECT, SPECIAL, PUNITIVE, CONSEQUENTIAL, OR INCIDENTAL DAMAGES ARISING OUT OF THE USE OR INABILITY TO USE THIS EQUIPMENT EVEN IF LECTROSONICS, INC. HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. IN NO EVENT SHALL THE LIABILITY OF LECTROSONICS, INC. EXCEED THE PURCHASE PRICE OF ANY DEFECTIVE EQUIPMENT. This warranty gives you specific legal rights. You may have additional legal rights which vary from state to state. 581 Laser Road NE Rio Rancho, NM 87124 USA www.lectrosonics.com

+1(505) 892-4501 fax +1(505) 892-6243 (800) 821-1121 US and Canada sales@lectrosonics.com 28 January 2020

FCC ID: DBZHMAA1A IC: 8024A-HMAA1A HMAA1 Model HMA/E07-A1 Lectrosonics, Inc. 3 H SN: XXX Made in the USA BAND A1 470.100 - 537.575 MHz

Label in side panel recess - actual size FOC ID: DBZHMA79. yyyayeo7-o41 Vea bs Lectrosonics, Inc. SN: XXXXX Made inthe USA = BLOCK 941 941.525 - 959.825 MHz

LEC ROSONICS AVE, FEDERAL COMMUNICATIONS COMMISSIONS Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Subject: Confidentiality Request regarding application for certification of:

FCC ID: DBZHMA79 PO. Box 15900 - Rio Rancho, NM - 87174 - USA Phone: (800)821-1121 or (505)892-4501 - Fax: (505)892-6243 web: www.lectrosonics.com - email: sales@lectrosonics.com In accordance with Sections 0.457 and 0.459 of the Commissions Rules, Lectrosonics, Inc. hereby requests long-term confidential treatment of information accompanying this application as outlined oC) JE) Cele a DC resectenl Niel slosnttilecy Operation Description Alignment Procedure Damani Internal Photos LOK a BET External Photos Test Set-up Photos The above materials contain proprietary and confidential information not customarily released to the public. The public disclosure of these materials provides unjustified benefits to its competitors in the market. Robert Cunnings, V.P. Engineering Lectrosonics, Inc. cunnings@lectrosonics.com 4 As well as short-term confidential treatment of information accompanying this application as outlined below:

FCC Confidential Authorization