Item 17. Radio Set AN/ARC-54 or AN/ARC- 131 and Antenna Group AN/ARA-56 or AS-1922/ARC Fm homing

Item 16. Radio Set AN/ARC-44 and Antenna Group AN/ARA-31, Fm Homing (Continued)

RATINGS

PROCEDURE

GREEN

AMBER

RED

HOME switch from FM to HOME. A

coded D (dash-dot-dot), coded U

(dot-dot-dash), or a steady tone will

be heard in the headsets. A coded D

indicates the station is to the left of

the aircraft. A coded U indicates the

station is to the right of the aircraft. A

steady tone indicates that station is

directly in front or in back of the

aircraft. Rotate the aircraft while

listening for the three signals. After

test is completed, return FM-HOME

switch to FM.

Item 17. Radio Set AN/ARC-54 or AN/ARC- 131 and Antenna Group AN/ARA-56 or AS-1922/ARC Fm homing

RATINGS

PROCEDURE

GREEN

AMBER

RED

Note: More conclusive tests of this

Vertical pointer nag completely

Vertical pointer flag does not completely

equipment can be made if the tests

disappears. Vertical pointer swings

disappear. Vertical pointer does not swing left,

are performed in flight. If a flight test left, right. and moves to center.

right, and will not remain centered.

cannot be performed. move the

aircraft through a 180- arc while

performing the test. Set the pilot's

and copilot's C-1611(*) AIC for fm

communication. Set the mode

control of the FM COMM control

panel to PTT or T/R. Establish two-

way communication with a local

tactical fm station. Request the local

TM 11-1520-209-ESC