Lectrosonics HMA-941 Series Instruction Manual
Hma-941 series, plug-on uhf transmitter
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- Quick start manual (13 pages) ,
- Instruction manual (24 pages)
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Summary of Contents for Lectrosonics HMA-941 Series
- Page 1 INSTRUCTION MANUAL HMA-941 Series Plug-on UHF Transmitter Digital Hybrid Wireless ® US Patent 7.225.135 Fill in for your records: Serial Number: Purchase Date: Rio Rancho, NM, USA www.lectrosonics.com...
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Page 2: Introduction
HMa-941 Introduction 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... -
Page 3: Table Of Contents
For body worn operation, this transmitter has been tested and meets the FCC RF exposure guidelines when used with the Lectrosonics accessories supplied or designated for this product. Use of other accessories may not ensure compliance with FCC RF exposure guidelines. Contact Lectrosonics if you have any questions or need more information about RF exposure using this product.. -
Page 4: General Technical Description
35, 50, 70, 100, 120 and 150 Hz to control sub- resistance to interference. sonic and very low frequency audio content in the au- Lectrosonics Digital Hybrid Wireless systems over- dio. The actual roll-off frequency will vary slightly depend- ®... -
Page 5: No Pre-Emphasis/De-Emphasis
® best performance when doing so. However, due to the flexibility of digital signal processing, the transmitter can also operate with Lectrosonics IFB receivers that may be available in the future. Control Panel The control panel includes four membrane switches and an LCD screen to adjust the operational settings. -
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 antenna is surprisingly efficient, which helps extend the operating range and suppress noise and interference. LECTROSONICS, INC. -
Page 7: Battery Installation
Plug-on UHF Transmitter Battery Installation Attaching/Removing a Microphone The transmitter is powered by two AA batteries. Note: Standard zinc-carbon batteries marked The spring loaded coupler under the XLR jack main- “heavy-duty” or “long-lasting” are not adequate. tains a secure fit to the microphone jack with continu- ous pressure applied by an internal spring. -
Page 8: Operating Instructions
LECtro Company Name: Digital hybrid mode 941r1.1 (typical) Frequency Block and Firmware Version (rX.X): Lectrosonics IFB systems CP nHb (typical) Compatibility Mode: When the boot sequence is complete, the display will Pr (power output) switch to the frequency currently set. -
Page 9: Hold Down Arrow At Turn On
“dweedle” tones from a mobile device, or from tones input level to the transmitter. generated by the Lectrosonics RM and RM2 devices. It is desirable to to set the gain so that some limiting Enables the remote function. -
Page 10: Freq Button
The only ways to unlock a locked the current of competing 48 Volt plug on units and pro- transmitter are to remove the battery or unlock it vide four times the current for some very high end 15 via the remote control. Volt microphones. LECTROSONICS, INC. -
Page 11: Accessories
Plug-on UHF Transmitter Accessories PHTRAN3 Replacement leather pouch with clear plastic screen P/N 21750 Barrel Adapter 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. -
Page 12: Firmware Update
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 13 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 click PC for easy locating when updating.
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Page 14: Specifications And Features
In- stead, it is a technique which can be accomplished only in the digital domain. The process eliminates compandor artifacts, expanding the applications to include test and mea- surement of acoustic spaces. *US Patent 7,225,135 LECTROSONICS, INC. - Page 15 Plug-on UHF Transmitter Rio Rancho, NM...
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Page 16: Troubleshooting
4) 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 17 Plug-on UHF Transmitter SYMPTOM POSSIBLE CAUSE HISS AND NOISE -- AUDIBLE DROPOUTS 1) Transmitter gain (audio level) far too low. 2) Defective transmitter or receiver antenna. 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.
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Page 18: 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 20 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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