TB 9-6625-177-24
DEPARTMENT OF THE ARMY TECHNICAL BULLETIN
CALIBRATION PROCEDURE FOR
RADIO FREQUENCY POWER TEST SET,
AN/URM-213
Headquarters, Department of the Army, Washington, DC
26 June 2013
Distribution Statement A: Approved for public release; distribution is unlimited.
REPORTING OF ERRORS AND RECOMMENDING IMPROVEMENTS
You can improve this manual. If you find any mistakes or if you know of a way to improve these
procedures, please let us know. Mail your letter or DA Form 2028 (Recommended Changes to
Publications and Blank Forms) directly to: Commander, U.S. Army Aviation and Missile Command,
ATTN: AMSAM-MSS-LP, Redstone Arsenal, AL 35898-5000. A reply will be furnished to you.
You may also send in your comments electronically to our E-mail address:
2028@redstone.army.mil or by fax 256-842-6546/DSN 788-6546. For the World Wide Web use:
https://amcom2028.redstone.army.mil. Instructions for sending an electronic 2028 can be found at
the back of this manual.
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Page
I. IDENTIFICATION AND DESCRIPTION
Test instrument identification .............................
Forms, records, and reports..................................
Calibration description .........................................
EQUIPMENT REQUIREMENTS
Equipment required ..............................................
Accessories required..............................................
CALIBRATION PROCESS
Preliminary instructions.......................................
Equipment setup ...................................................
Wattmeter linearity test .......................................
Plug-in element 4410-8 calibration ......................
Plug-in element 4410-6 calibration ......................
Plug-in element 4410-5 calibration ......................
Plug-in element 4410-4 calibration ......................
Plug-in element 4410-2 calibration ......................
Dummy load calibration............. ........................
Final procedure.. ...................................................