Bogen UDMS800HH Headphones User Manual


 
6
UHT800 HANDHELD MIC TRANSMITTER
1. Microphone Battery Installation
Install batteries by unscrewing the BATTERY COMPARTMENT COVER (29) counterclockwise and
remove, exposing the BATTERY HOLDER (38). Insert two fresh AA ALKALINE BATTERIES (32),
observing the correct polarity, and screw the cover back on to the microphone. Make sure the
cover is screwed clockwise completely. Fresh alkaline batteries can last up to 10 hours in use,
but in order to ensure optimum performance, it is recommended that you replace the batteries
after every 7-8 hours of use.
2. Programming UHT800 to Selected Group/Channel (Frequency)
The transmitter must be programmed to the same frequency as selected for the receiver via
automatic synchronization using the IR ASC™ Sync function. It can not be programmed on the
transmitter itself. See “Selecting the Receiver Group/Channel and Programming” in next
section. To manually IR program the receiver preselected frequency into the transmitter, place
the transmitter’s IR RECEPTOR SENSOR WINDOW (37) 6-12” away from the receiver’s
IR WINDOW (12). Press the MENU BUTTON (14) four times to the IR Screen then press the
UP BUTTON (13) to start IR programming. This flashing IR INDICATOR (22) icon indicates IR
transmission is in progress. When the synchronization is completed successfully, the
RF INDICATOR (19) and the diversity A or B INDICATOR (20) on the receiver will show up.
(See section on Selecting the Group/Channel (Frequency) and IR Programming for transmitters.)
(Note: If no button is pressed for a five second period during a selection, the program is
terminated and the process needs to be repeated.)
3. Operating the UHT800 Handheld MIC Transmitter
Turn on the UHT800 by sliding the AUDIO MUTE (36) to the OFF position first. Then slide
the POWER SWITCH (35) to the ON position. The TX LED INDICATOR (green) (33) will stay on t
o
indicate that the transmitter is on. The LOW BATTERY INDICATOR LED (red) (34) will stay OFF,
indicating usable-battery strength. In the case of a dead battery, the BATTERY INDICATOR
LED (34) will stay on continuously, indicating that the batteries should be replaced. To preserve
battery life, turn the transmitter off when not in use.
The microphone is now ready to use. The A or B DIVERSITY LED INDICATOR (20) on the
UDR800 receiver should now be lit, indicating a received signal from the transmitter.
When ready to speak, slide the AUDIO MUTE (36) to the ON position.
(Note: Observe care in selecting P.A. volume, transmitter location and speaker placement so
that acoustic feedback (howling or screeching) will be avoided.)
(Note: The windscreen of the UHT800 functions as a built-in antenna.For proper operation,
never remove the windscreen during use, or exchange with another type. For optimum range,
maintain line-of-sight between the transmitter and the receiver whenever possible. Holding the
microphone tightly, bridging across the windscreen and mic tube, will also lessen range. Hold
MIC by the MIC tube housing only for optimum operation.)
For optimum performance, an AUDIO INPUT LEVEL (31) is provided. Adjust the gain by turning
the control with a small screwdriver. It is recommended that the level be set at about 1/2 maximum.
Experiment and set for maximum possible gain without audible distortion on the high level peaks.
(Note: Turning down the gain too much can compromise the signal-to-noise ratio, and is not
recommended.)
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