DEPARTMENT OF THE ARMY TECHNICAL BULLETIN

TB 11-6625-821-35

CHANGE 1

DEPARTMENT OF THE ARMY TECHNICAL BULLETIN

CALIBRATION PROCEDURE FOR

DIRECTION FINDER SET TEST SET

AN/ARM-93

(NSN 6625-00-999-6081)

Headquarters, Department of the Army, Washington, DC

20 June 1979

TB 11-6625-821-35, 9 August 1973 is changed as follows:

The title of the bulletin is changed as shown above.

Page 1, paragraph 2, line 7. The address is changed to "Commander, US Army

Communications and Electronics Materiel Readiness Command, ATTN: DRSEL-ME-MQ,

Fort Monmouth, NJ 07703."

Page 2, paragraph 3c, line 5. "TB 750-236" is changed to read: "TB 43-180."

Paragraph 4a. The following is added at the end of line 4:

"Adjustments to be

annotated on DA Form 2416 are followed by (R) in this procedure."

Table 1A is superseded as follows:

A - Authorized calibration equipment

Common name

Minimum use specifications

Calibration equipment

FREQUENCY METER

AN/USM-207 or SD-1037M2

Range: 400 Hz ±10%

VOLTMETER

ME-202/U or Dana 5700 series

Range: 30 Volts ac ±0.5%

VOLTMETER RF

For a null indication

ME-20/U or HP 400 series

OSCILLOSCOPE

For lissajous pattern

AN/USM-281 or HP 180 series

SIGNAL GENERATOR

Range: to 1700 kHz

AN/URM-25 or equal

POWER SUPPLY

Range: 27.5 Volts dc

CS36CR30 or equal

Paragraph 6, table 1B. "None required" is superseded as follows:

Banana plug to banana plug lead

2 required

Banana plug to pin adapter

2 required

Banana plug to alligator clip

Quantity as required

Fabricated cable (fig. 1)

Some modification of this cable is permissible as to size, length,

and loose ends.

PIN: 010598-001