DEPARTMENT OF THE ARMY TECHNICAL BULLETIN

*TB11-6625-648-35

DEPARTMENT OF THE ARMY TECHNICAL BULLETIN

CALIBRATION PROCEDURE FOR

TELEPHONE TEST SET AN/PTM-7

INCLUDING TS-1323/PT

(NSN 6625-00-902-7574)

Headquarters, Department of the Army, Washington, DC

3 March 1982

REPORTING ERRORS AND RECOMMENDING IMPROVEMENTS

You can help improve this manual. If you find any mistakes or if

you know of a way to improve the procedures, please let us know.

Mail your letter or DA Form 2028 (Recommended Changes to

Publications and Blank Forms) direct to: Commander, US Army

Communications-Electronics Command and Fort Monmouth ATTN:

DRSEL-ME-MQ, Fort Monmouth, New Jersey 07703.

In either case, a reply will be furnished direct to you.

Paragraph

Page

IDENTIFICATION AND DESCRIPTION

SECTION I.

Test instrument identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

Calibration data card (DA Form 2416) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2

Calibration description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3

II.

EQUIPMENT REQUIREMENTS

Equipment required . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1

Accessories required . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2

III.

CALIBRATION PROCESS

Preliminary instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-1

Meter accuracy using meter test set A3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2

Meter accuracy using electrical test set A4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3

Bridge accuracy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4

Final procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5

*This bulletin supersedes TB 11-6625-648-35, 10 August 1977.