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1. Status Indicator - This LED displays the oper-
ation mode:
GREEN Normal Operation
RED Mute
Flashing GREEN Low Battery
2. Power/Mute Switch - Press and hold to turn
the unit on or off. Press and release to mute
or unmute the transmitter.
3. Battery Cover - Unscrew the battery cover
and slide down to open the CH88 battery
compartment.
4. Battery Holder - Open the battery holder by
pressing the tab and lifting the cover. Insert
two standard AA (LR6) batteries here, being
sure to observe the plus and minus polari-
ty markings shown. Although rechargeable
Ni-Cad batteries can be used, they do not
supply adequate current for more than four
hours. WARNING: Do not insert the batteries
backwards; doing so can cause severe dam-
age to the CH88 and will void your warranty.
5. Input GAIN Control - This control adjusts the
transmitter input sensitivity. For optimal per-
formance, using the included screwdriver,
set the input GAIN control to where you see
the CR88V Audio Meter maximum indicator
start to light under high levels, then turn
down slowly until the maximum indicator
stops lighting.
6. IR Lens - This window is used to capture the infrared signal sent from the CR88V
during the IR SET to channelize the transmitter. The battery cover must be open
and the IR Lens facing towards the receiver to load the selected channel.
7. Plastic Screwdriver - Designed for use in adjusting the CB88 input GAIN control
(See #5 Input GAIN Control HH).
CH88 Handheld Transmitter - Callouts