M. Ambient Light
Detector
N. HOLD Switch
O. POWER Switch
P. STPW/TEST
Indicator
Section 4—Unit Description
Detects ambient light conditions
and adjusts the brightness of
displays automatically.
This switch used to turn the
selected antenna's microwave
transmitter on and off.
System power control – on/off.
On solid indicates stopwatch
mode. Flashing indicates the unit
is in test mode.
4.3