Section II. COMMUNICATION SYSTEM EVALUATION PROCEDURE

TM 11-1520-209-ESC

(7) Receiving Set, Radio AN/ARN-82( *), vor (item 22).

Reporting of Errors.

The reporting of errors, omissions, and

(8) Aircraft Magnetic Compass. TypeJ-2 (item 23).

recommendations for improving this publication by the individual user is

(9) Gyromagnetic Compass A N/ASN-43 (item 24).

encouraged.

Reports should be submitted on DA Form 2028

c. Stabilization System (Section IV).

(Recommended Changes to Publications) and forwarded directly to

(1) Stability Augmentation System (SAS) (items 26 and 27).

Commander, U.S. Army Electronics Command, ATTN: AMSEL-MA-Q, Fort

(2) Speed Trim Facility (item 28).

Monmouth, NJ., 07703.

d. Auxiliary System (Section V). Proximity Waning System (item 30,)

Section II. COMMUNICATION SYSTEM EVALUATION PROCEDURE

circuit breakers so that power is available to operate the equipment. Perform

Evaluation Requirements. a. Aircraft Placement.

Have the

the tests from each position in turn to insure a complete check of the

aircraft placed in a location that is clear of obstructions such as large

communication facilities.

buildings, hangars. powerlines, and other aircraft.

b. Power Application.

CAUTION

(1) Auxiliary power. For those tests not requiring engine

Communication equipments require a 3-minute warmup prior

operation, items 2 thru 12 use external power or the aircraft auxiliary power

to operation except the uhf radio set which requires a 5-

unit.

minute warmup period.

(2) Aircraft power. Tests given in item 13 require the use of

aircraft engines and aircraft flight controls. For that item. use qualified

Procedure. a. All information will be determined by actual

personnel to operate the aircraft. Refer to TM 55-1520-209-10 for CH-47A

helicopters.

Refer to TM 55-1520-227-10 for CH-47B and CH-47C

inspection and operation of the equipment. Evaluate each item listed and

helicopters.

record the proper color rating on DA Form 2404 as described in Section I. All

c. Controls.

Before beginning the tests, set the communication

operator/crew preventive maintenance checks and services shall be

equipment controls to their normal OFF positions. Set the aircraft ac and dc

performed prior to evaluation.

Item 1. MWO

RATINGS

PROCEDURE

GREEN

AMBER

RED

Determine if all pertinent URGENT

All pertinent URGENT

One or more URGENT

MWO have been applied.

MWO have not been applied.

Change 1

TM 11-1520-209-ESC