Lectrosonics HMa Instruction Manual
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Lectrosonics HMa Instruction Manual

Wideband plug-on transmitter with digital hybrid wireless technology
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HMa
Wideband Plug-On Transmitter
With Digital Hybrid Wireless
Digital Hybrid Wireless
US Patent 7,225,135
Fill in for your records:
Serial Number:
Purchase Date:
Technology
®
®
INSTRUCTION MANUAL
Rio Rancho, NM, USA
www.lectrosonics.com

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Summary of Contents for Lectrosonics HMa

  • Page 1 INSTRUCTION MANUAL Wideband Plug-On Transmitter With Digital Hybrid Wireless Technology ® Digital Hybrid Wireless ® US Patent 7,225,135 Fill in for your records: Serial Number: Rio Rancho, NM, USA Purchase Date: www.lectrosonics.com...
  • Page 2 LECTROSONICS, INC.

  • Page 3: Table Of Contents

    Wideband Digital Hybrid Plug-On Transmitter ® Table of Contents General Technical Description ................................4 Digital Hybrid Wireless Technology ..............................4 ® No Pre-Emphasis/De-Emphasis ................................5 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...

  • Page 4: General Technical Description

    Nu Hy- ing audio performance that rivals that of wholly digital brid mode, the technology used in the HMa includes systems, without the power and bandwidth problems compatibility modes for Lectrosonics Mode 3 and inherent in digital transmission.

  • Page 5: No Pre-Emphasis/De-Emphasis

    Nu Hy- de-emphasis (HF roll-off) in the receiver. This eliminates brid mode, the technology used in the HMa includes the potential for distortion on signals with abundant compatibility modes for Lectrosonics Mode 3 and IFB high-frequency information.

  • Page 6: Controls And Functions

    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. LECTROSONICS, INC.

  • Page 7: Battery Installation

    Wideband Digital Hybrid Plug-On Transmitter ® Battery Installation Attaching/Removing a Microphone The transmitter is powered by two AA batteries (lithium recommended). The spring loaded coupler under the XLR jack main- Note: Standard zinc-carbon batteries marked tains a secure fit to the microphone jack with continu- “heavy-duty”...

  • Page 8: Operating Instructions

    Nu Hybrid - Digital Hybrid receivers Simultaneously press and hold the AUDIO and • 3 - (Mode 3) For non-Lectrosonics analog receiv- FREQ buttons. Continue holding the buttons until ers. Contact the the factory for details. OFF and the countdown characters 3, 2, 1 have ap- •...

  • Page 9: Down Button Menu

    Plug-On Transmitter ® RF Power Output (Up Button Menu) Pr (RF Power output) may be selected as either 100 or HMa transmitter settings that can be adjusted: • Audio input level (gain) • Operating frequency • Panel Lock/Unlock • RF power output Selecting the Audio Polarity (Up Button Menu) •...

  • Page 10: Audio Button Settings

    18 Volts. (See below for a discussion of why 42 and not a “true” 48 Volts.) 1) With the HMa powered off, insert the microphone plug into the XLR Input Jack, aligning the pins and For longest battery life use the minimum phantom ensuring that the connector locks.

  • Page 11: Freq Button Settings

    The operating frequency can the power supply. be displayed either in MHz or as a two-digit hexadeci- The HMa improves on those functions and is able to Frequency displayed mal number. The example of use less power from the battery by using constant...

  • Page 12: Lock/Unlock Screen

    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.

  • Page 13: Lectrorm

    Each version also has a mechanism to prevent accidental activation of Please be aware this app is not a Lectrosonics product. It is privately owned the tone. and operated by New Endian LLC, www.newendian.com.

  • Page 14: Accessories

    Optional adapter for connecting a lavaliere microphone MCA-M30 Barrel Adapter 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.

  • Page 15: Specifications And Features

    Low frequency Roll-off: Adjustable for -3dB @30, 50, 70, 100, 107.95 x 41.148 x 35.052 mm 120 or 150 Hz) Emission Designator: HMa-A1: 44K3F3E THD: 0.2% (typ. 100 Hz to 20 kHz - see graph) HMa-B1: 57K9F3E SNR at receiver output: Specifications subject to change without notice.

  • Page 16: Firmware Update

    Updater is not installed on your system. Follow the TROUBLESHOOTING steps to fix the error. USB port. Go to www.lectrosonics.com/US. 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.
  • Page 17 Step 3: Step 7: Refer to Step 1 to return to Firmware web page. Down- In Lectrosonics USB Firmware Updater, choose the load Firmware Update and save to a local file on your detected device, browse to local Firmware File and PC for easy locating when updating.

  • Page 18: Troubleshooting

    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 user’s mouth. LECTROSONICS, INC.
  • Page 19 Wideband Digital Hybrid Plug-On Transmitter ® 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 receiver’s signal strength indicator does not drop to nearly zero, this indicates an interfering signal may be the problem.

  • Page 20: Service And Repair

    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.
  • Page 21 Wideband Digital Hybrid Plug-On Transmitter ® Rio Rancho, NM...
  • Page 22 LECTROSONICS, INC.
  • Page 23 Wideband Digital Hybrid Plug-On Transmitter ® Rio Rancho, NM...
  • Page 24 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.

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