11
Programming the U-800 to the Selected Group/Channel (frequency)
The Receiver must be programmed for a Group/Channel (frequency) first then auto-
matic synchronization using the IR ASC™ Sync function to the transmitter. For system
set up procedures, see next section “6. Selecting Group/Channel, IR Pro-
gramming and Simultaneous Multichannel Operation”
UH-800 HANDHELD MICROpHONE TRANSMITTER (HT)
Setting up the UH-800 Transmitter
The UH-800 requires two AA alkaline or NiMH batteries to operate (do not mix
types). Installing batteries by unscrewing counterclockwise the BATTERY COVER
(29) and slide down, exposing the BATTERY COMPACTMENT (32). Insert two
fresh AA BATTERIES (31), observing the correct polarity as marked, and screw the
cover back on to the microphone. Make sure the cover is screwed clockwise com-
pletely. 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
6-8 hours of use.
Powering the UH-800 Transmitter On/Off
Turn on the UH-800 by sliding the AUDIO SWITCH (36) to the OFF position first.
Then slide the POWER SWITCH (35) to the ON position. The POWER ON LED
(33) will stay on, indicating that the transmitter is now on. The BATTERY LED (34)
will stay off, indicating usable battery strength. In the case of a dead or low battery,
the low battery LED will light red continuously, indicating that the batteries should be
replaced with fresh ones.
To preserve battery life, turn the transmitter off when not in use. To turn the transmitter
off, slide the RF POWER (35) switch to the OFF position. The POWER ON LED
(33) is not lit up, indicating the unit is off. The MUTE ICON (6) on the receiver
should be on, muting the audio out.
At power off the transmitter will store the last settings entered and re-display them at
the next power on. The default factory setting is Group 11, Channel 01.
For optimum performance, an AUDIO INPUT LEVEL (30) 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 with-
out audible distortion on the high level peaks. (Note: Turning down the gain too much
can compromise the signal-to-noise and it is not recommended.)
The microphone is now ready to use. The diversity A/B INDICATORS (9) on the
U-800 receiver should now be on, indicating a received signal from the transmitter.
When ready to speak, slide the AUDIO MUTE (36) to the ON position. The MUTE
ICON (6) on receiver should be off. Adjust the volume of the receiver as per the Au-
dio Output Microphone Connection section of the above U-800 receiver instructions.
