INSTRUCTION MANUAL HMa Wideband Plug-On Transmitter With Digital Hybrid Wireless® Technology Digital Hybrid Wireless® US Patent 7,225,135 Fill in for your records: Serial Number: Purchase Date: Rio Rancho, NM, USA www.lectrosonics.
HMa 2 LECTROSONICS, INC.
Wideband Digital Hybrid® Plug-On Transmitter Table of Contents General Technical Description ..............................................................................................................................................................4 Digital Hybrid Wireless® Technology......................................................................................................................................................4 No Pre-Emphasis/De-Emphasis............................................
HMa Thank you for selecting a Lectrosonics HMa plug-On transmitter. The unique design provides several distinct features for professional applications: separate manuals. The HMa transmitter uses ±75 kHz wide deviation for an excellent signal to noise ratio and wide dynamic range. The DSP controlled input limiter features a wide range dual envelope design which cleanly limits input signal peaks over 30 dB above full modulation.
Wideband Digital Hybrid® Plug-On Transmitter 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.
HMa Controls and Functions Input Coupler Modulation LEDs LCD UP Arrow Battery Compartment 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.
Wideband Digital Hybrid® Plug-On Transmitter Antenna 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 antenna is surprisingly efficient, which helps extend the operating range and suppress noise and interference. USB Port USB Port for firmware updates in the field. IR Port IR (infrared) port for fast setup.
HMa Operating Instructions PWR LED Modulation LEDs UP Arrow 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 settings 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.
Wideband Digital Hybrid® Plug-On Transmitter RF Power Output (Up Button Menu) Pr (RF Power output) may be selected as either 100 or 50. HMa transmitter settings that can be adjusted: • Audio input level (gain) • Operating frequency • Panel Lock/Unlock 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.
HMa 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. Adjusting the Input Gain The control panel Modulation LEDs indicate the modulation level and limiter activity.
Wideband Digital Hybrid® Plug-On Transmitter 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 accidentally shorted to ground and also keeps the microphone 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.
HMa Lock/Unlock Screen 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. Remote Control with “Dweedle Tones” 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.
Wideband Digital Hybrid® Plug-On Transmitter LectroRM Android By New Endian LLC LectroRM is a mobile application for iOS and Android operating systems. Its purpose is to remotely control Lectrosonics Transmitters, including: • SM Series • WM • L Series • HMa, HMa/E01 The app remotely changes settings on the transmitter 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.
HMa Accessories PHTRAN3 Replacement leather pouch with clear plastic screen cover, rotating belt clip and snap closure. Included with transmitter at purchase. 21750 Barrel Adapter MCA-M30 Barrel Adapter MCA5X Barrel Adapter This polarity reversing adapter may be needed to correct for asymmetrical current draw in some P48 powered condenser microphones, including older Neumann 100 Series, Rode NTG3 and others.
Wideband Digital Hybrid® Plug-On Transmitter Specifications and Features Operating Frequencies: Band A1: Band B1: 470.100 - 537.575 537.600 - 607.
HMa Firmware Update Updating the firmware is a simple matter of downloading 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. Step 2: 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. Go to www.lectrosonics.
Wideband Digital Hybrid® Plug-On Transmitter Step 3: Step 7: Refer to Step 1 to return to Firmware web page. Download 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.
HMa 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 1) 2) AUDIO LEVEL LEDs NOT LIGHTING 1) 2) 3) 4) Batteries are inserted backwards or dead. Transmitter not powered up. (See Operating Instructions, Power UP and Boot Sequence.) Gain control set to minimum. Batteries are inserted backwards or dead. Check PWR LED.
Wideband Digital Hybrid® Plug-On Transmitter SYMPTOM POSSIBLE CAUSE HISS AND NOISE -- AUDIBLE DROPOUTS 1) 2) 3) 4) Transmitter gain (audio level) far too low. Receiver antenna missing or obstructed. Operating range too great. Signal interference. Turn off transmitter. If receiver’s signal strength indicator does not drop to nearly zero, this indicates an interfering signal may be the problem. Use a clear operating frequency.
HMa 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 attempt anything other than the simplest repair.
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HMa 22 LECTROSONICS, INC.
Wideband Digital Hybrid® Plug-On Transmitter Rio Rancho, NM 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.