Uh400 frequency-agile plug-on uhf transmitter lectrosonics, inc. Rio rancho, nm www.Lectrosonics.Com operating instructions and trouble-shooting guide.
2 uh400 lectrosonics, inc. Introduction thank you for selecting the lectrosonics uh400 frequency agile, plug-on transmitter. The uh400 combines over 80 years of engineering experience with the very latest components, in a design that addresses the most demanding professional applications. The design...
3 frequency agile plug-on uhf transmitter rio rancho, nm – usa general technical description general the 400 system uses 75khz wide deviation for an extremely high signal to noise ratio. The switching power supplies provide con- stant voltages to the transmitter circuits from the beginning (9.3 volt...
4 uh400 lectrosonics, inc. No pre-emphasis/de-emphasis the signal to noise ratio of the 400 system is high enough to preclude the need for conventional pre-emphasis (hf boost) in the transmitter and de-emphasis (hf roll off) in the receiver. Pre- emphasis and de-emphasis in an fm radio system usuall...
5 frequency agile plug-on uhf transmitter rio rancho, nm – usa indication immediately after being put in the unit, but will soon discharge to the point where the led will go red or shut down, just like a flashlight with “dead” batteries. If the lamp fails to light, the battery should be replaced. Ph...
6 uh400 lectrosonics, inc. To attach to remove pull on mic to insure locking. Press firmly, listen for click. Depress collar fully. Hold the transmitter case and rotate the collar in the direction shown. Do this over a soft surface as the microphone may pop off suddenly click! Input limiter the 400 ...
7 frequency agile plug-on uhf transmitter rio rancho, nm – usa operating tips the mic level control knob should not be used to control the volume of your sound system or recorder levels. This gain adjustment matches the transmitter gain with the user’s voice level and microphone positioning. If the ...
8 uh400 lectrosonics, inc. Battery replacement the uh400 transmitter is powered by a standard alkaline 9 volt battery. It is important that you use only alkaline or lithium batteries for longest life. Standard zinc-carbon batter- ies marked “heavy duty” or “long-lasting” are not adequate. They will ...
9 frequency agile plug-on uhf transmitter rio rancho, nm – usa symptom possible cause receiver rf lamp off 1. Transmitter not turned on. 2. Transmitter battery is dead. 3. Receiver antenna missing or improperly positioned. 4. Transmitter and receiver not on same frequency. Check switches/ display on...
10 uh400 lectrosonics, inc. Specifications and features operating frequencies: 537.600 to 607.900 mhz; 614.100 to 793.500 mhz frequency selection: 256 frequencies in 100khz steps rf power output: 100 mw (nominal) pilot tone: 25 to 32 khz; 5khz deviation (in 400 series mode) frequency stability: ± 0....
11 frequency agile plug-on uhf transmitter rio rancho, nm – usa 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 ou...
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 warr...
