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Lectronics UH400A Instruction Manual

Manual is about: Frequency Agile Plug-On UHF Transmitter Featuring Digital Hybrid Wireless Technology

Summary of UH400A

  • Page 1

    Uh400a uh400tm frequency agile plug-on uhf transmitter featuring digital hybrid wireless™ technology u.S. Patent 7,225,135 instruction manual rio rancho, nm, usa www.Lectrosonics.Com fill in for your records: serial number: purchase date:.

  • Page 2

    Uh400a/uh400tm lectrosonics, inc. Thank you for purchasing the uh400a plug-on transmit- ter. This is the latest version of a long history of plug-on transmitter models that began in the late 1980’s, serv- ing eng applications at television stations across the usa. In the mid-1990’s, the first uhf ve...

  • Page 3: Table of Contents

    Frequency agile plug-on uhf transmitter rio rancho, nm table of contents general technical description ..............................................................................................................................................................4 introduction ...........................

  • Page 4

    Uh400a/uh400tm lectrosonics, inc. General technical description introduction digital hybrid wireless ™ is a wideband design with ±75 khz deviation produding an excellent audio signal to noise ratio and wide dynamic range. The switching power supplies provide constant voltages to the trans- mitter ci...

  • Page 5

    Frequency agile plug-on uhf transmitter rio rancho, nm input limiter the digital hybrid wireless ™ transmitters employ a digitally-controlled analog audio limiter just before the analog-to-digital converter. The limiter has a range of more than 30 db for excellent overload protection. A dual release...

  • Page 6

    Uh400a/uh400tm lectrosonics, inc. This transmitter may be used with a wide variety of mi- crophones. The 3-pin xlr connector allows the trans- mitter to be used with any dynamic microphone, as well as many two wire positive bias lavaliere systems (such as those supplied by lectrosonics). Power switc...

  • Page 7

    Frequency agile plug-on uhf transmitter rio rancho, nm 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 h...

  • Page 8

    Uh400a/uh400tm lectrosonics, inc. 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 • twice for 200 ser...

  • Page 9

    Frequency agile plug-on uhf transmitter rio rancho, nm the uh400a transmitter will tune to any of 256 different frequencies within a factory assigned block. Two 16- position switches adjust the operating frequency in 100 khz steps yielding the 256 in a block (16 x 16 = 256). The block number is dete...

  • Page 10

    Uh400a/uh400tm lectrosonics, inc. 10 operating instructions attaching the microphone 1. Set the correct phantom power voltage for the mic. If the mic does not require phantom voltage, set the phantom voltage select switch to 5 vdc to reduce the possibility of damage to the mic when the trans- mitter...

  • Page 11

    Frequency agile plug-on uhf transmitter rio rancho, nm 11 4. Set the power switch to no phtm briefly – just a couple of seconds for the front panel led’s to light up, then turn the unit off. 5. Change the frequency select switches to one of the following settings: mode switch settings 100 series 1,1...

  • Page 12

    Uh400a/uh400tm lectrosonics, inc. 1 part #21750 accessories phtran2 mc5ax phtran2 cordura pouch with belt clip and velcro flap. (included with tx) mc5ax (optional) ta5 to xlr adapter for connecting a lavaliere microphone to the uh400. Using the polarity- reversing barrel adapter the uh400tm transmit...

  • Page 13

    Frequency agile plug-on uhf transmitter rio rancho, nm 1 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. Batter...

  • Page 14

    Uh400a/uh400tm lectrosonics, inc. 1 operating frequencies: 537.600 to 607.900 mhz; 614.100 to 767.900 mhz frequency selection: 256 frequencies in 100 khz steps rf power output: 100 mw pilot tone: 25 to 32 khz; 5 khz deviation (in 400 series (hybrid) mode) frequency stability: ± 0.002% deviation: ± 7...

  • Page 15

    Frequency agile plug-on uhf transmitter rio rancho, nm 1 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 inter...

  • Page 16: Limited One Year Warranty

    August 30, 2007 581 laser road ne • rio rancho, nm 87124 usa • www.Lectrosonics.Com (505) 892-4501 • (800) 821-1121 • fax (505) 892-6243 • sales@lectrosonics.Com limited one year warranty the equipment is warranted for one year from date of purchase against defects in materials or workmanship provid...