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Summary of Contents for Lectrosonics UH400TM
- Page 1 INSTRUCTION MANUAL UH400A UH400TM Frequency Agile Plug-On UHF Transmitter Featuring Digital Hybrid Wireless™ Technology U.S. Patent 7,225,135 Fill in for your records: Serial Number: Purchase Date: Rio Rancho, NM, USA www.lectrosonics.com...
- Page 2 UH400A/UH400TM This plug-on transmitter is an advanced design that The UH400TM is a specialized version of the UH400A has evolved since the first models appeared in the late that is an integral part of a highly accurate wireless test 1980’s serving ENG applications at television stations and measurement system.
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Page 3: Table Of Contents
Frequency Agile Plug-On UHF Transmitter Table of Contents General Technical Description ................................4 Introduction ......................................4 Digital Hybrid Technology ..................................4 Input Limiter ......................................5 No Pre-Emphasis/De-Emphasis ................................5 Pilot Tone Squelch ....................................5 Long Battery Life ....................................5 Frequency Agility....................................5 Controls and Functions ..................................6 Power Switch ......................................6 Power ON/OFF LED .....................................6 Phantom Power Voltage Select Switch ..............................6 Frequency Select Switches ...................................7... -
Page 4: General Technical Description
FM wireless systems, such as excellent range, efficient use of RF The Lectrosonics Digital Hybrid Wireless system ™ spectrum, and long battery life. However, unlike con-... -
Page 5: Input Limiter
Frequency Agile Plug-On UHF Transmitter Input Limiter Wide-Band Deviation The Digital Hybrid Wireless transmitters employ a A ±75 kHz deviation improves the capture ratio, signal ™ digitally-controlled analog audio limiter just before the to noise ratio and AM rejection of a wireless system analog-to-digital converter. -
Page 6: Controls And Functions
Lectrosonics). Phantom Power Voltage Select Switch Power Switch Note: The UH400TM can be used with the Earthworks M30 Test Microphone if pins 2 and 3 The three position switch turns the unit on or off, and are reversed. -
Page 7: Frequency Select Switches
15 or 48 Volt setting as the microphone will most -10 dB LEVEL The Modulation LEDs likely be destroyed. Lectrosonics makes an adapter, indicate the proper setting MCA5X, that will adapt our standard TA5F 5 pin mi- of the MIC LEVEL control. -
Page 8: Compatibility Mode Indicators
UH400A/UH400TM Compatibility Mode Indicators At power up, all three LEDS will blink together red, then green, followed by the -20 and -10 dB LEVEL LEDs blinking together to indicate the operating mode. The –20 and –10 LEDs will blink: • Once for 100 Series mode •... -
Page 9: Block Numbers And Freqeuncy Ranges
Frequency Agile Plug-On UHF Transmitter Block Numbers and Freqeuncy Ranges The transmitter will tune to any of 256 different frequen- Block Numbers and Frequency Ranges (MHz): cies within a factory assigned block. Block 470 470.100 - 495.600 Block 19 486.400 - 511.900 Block 20 512.000 - 537.500 Block 21... -
Page 10: Operating Instructions
INPUT POWER SWITCH GAIN CONTROL This unit is capable of working with Lectrosonics 400 4. Turn on the transmitter by setting the Power Switch series digital hybrid receivers, 200 Series, 100 Series to PHTM if the mic requires phantom power, or and IFB analog receivers. -
Page 11: Adjusting The Transmitter Frequency
In other cases you may need to use pre- coordinated frequencies from the Lectrosonics tables or someone else. Set the left and right switches on the transmitter to match the receiver. The alpha-numeric settings are displayed as a pair, ie. -
Page 12: Using The Polarity-Reversing Barrel Adapter
Using the Polarity- Accessories Reversing Barrel Adapter PHTRAN2 Cordura Pouch with belt clip and velcro flap. The UH400TM transmitter comes with a polar- (Included with TX) ity-reversing XLR barrel adapter for use with Earthworks M30 measurement micro- MC5AX (optional) phones. Simply connect the adapter... -
Page 13: Troubleshooting
Frequency Agile Plug-On UHF Transmitter Troubleshooting Before going through the following chart, be sure that you have a good battery in the transmitter. It is important that you follow these steps in the sequence listed. Symptom Possible Cause Transmitter Battery LED Off 1. -
Page 14: Specifications And Features
Audio Frequency Response: 90 Hz to 20 kHz, +/-1 dB (40 Hz to 20 kHz, +/- 1 db for UH400TM) Note: The audio is deliberately rolled off at 70Hz using a 12 dB/octave filter on the UH400A. This filter cannot be disabled. -
Page 15: 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 16 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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