TM
3-6665-316-12
CHAPTER 2
O P E R A T I N G INSTRUCTIONS
Section
I.
D E S C R I P T I O N AND USE OF OPERATOR'S CONTROLS AND
INDICATORS
2-1.
TRANSMITTER
CAUTION
Do not operate transmitter
OPR
switch
if
antenna is not installed.
Transmitter controls and indicators
consist
of
the
OPR
switch,
the
TEST
GOOD
in-
dicator, and the CHAN SEL switch.
a. The OPR switch (1) is a 2-position momentary switch. When the switch is in
the off position, no current is routed to transmitter circuitry.
When the switch
is pushed to the OPR position, the TEST GOOD indicator will light if the transmit-
ter batteries are good.
The transmitter will broadcast a coded signal if the CHAN
SEL switch is in Position 1, 2, 3, or 4.
b.
The TEST GOOD indicator (2)
is a red indicator light. This indicator comes on
whenever the OPR switch is pushed
to the OPR position if the transmitter batteries
are good.
Four posi-
c. The CHAN SEL switch (3) is a 5-position rotary selector switch.
tions correspond to UNIT numbers recorded on the GROUP/UNIT identification plates
mounted on receivers. The fifth position is the TEST position. When the OPR
switch is pushed to the OPR position~ the receiver(s) with a UNIT number matching
If the CHAN SEL switch is
the CHAN SEL switch numbered setting will be activated.
in the TEST position, a battery test circuit will check battery voltage, and no
receivers will be activated.
2-1
