CONTROL-MONITOR CONTROLS AND USES

TM 11-5820-890-10-8

CONTROL-MONITOR CONTROLS AND USES

CONTROL

PURPOSE

RADIO

This control is used to select Radio 1, 2, or 3. Positions 1 and 2 are for

RT-A and RT-B in first VAA; position 3 is for RT-A in second VA4

FCTN

This control is used for selecting test, RF power, RT mode, channel,

(Function)

COMSEC variable, COMSEC mode, and main or standby status.

TEST

Used to run C-M self-test. Results are shown in displays. Self-test will

continue until FCTN switch is moved out of TEST position.

This control position is used to set the RF power output of the radio.

The INIT switch is used for adjusting power.

RT MODE

Used to set RT mode, including power off. INIT switch is used to make

changes. RT mode display shows operating mode.

CHAN

Used to select RT channel, including CUE and MAN. Channel display

shows channel selected; with "0" for MAN and "C" for CUE.

(Channel)

VAR

Used to select COMSEC keys.

(Variable)

COMSEC

Used to select COMSEC mode, plain text or cipher text. COMSEC

display shows PT or CT.

CONTROL

Used to change C-M from standby (S) to main (M). INIT switch is used

to make changes. Control display shows operating condition.

INIT

Used with FCTN switch to change functions of RT and C-M. Moving INIT

(Initiate)

switch up moves FCTN display to right, or increases channel number.

Moving INIT switch down moves FCTN display to left, or decreases the

channel number.

DIM

This control adjusts brightness of displays. Turning it clockwise

bnghtens displays; counterclockwise dims displays. DIM control is

turned fully counterclockwise for use of night vision goggles.

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