TB 9-4931-539-35
DEPARTMENT OF THE ARMY TECHNICAL BULLETIN
CALIBRATION PROCEDURE FOR
FREQUENCY AND TIME MEASUREMENTS
Headquarters, Department of the Army, Washington, DC
4 August 1992
Approved for public release; distribution is unlimited
REPORTING OF ERRORS
You can help improve this publication. If you find any mistakes or if you know of a
way to improve the procedure, please let us know. Mail your letter or DA Form 2028
to: Commander, U. S. Army Aviation and Missile Command, ATTN: AMSAM-MMC-
MA-NP, Redstone Arsenal, AL 35898-5230. A reply will be furnished to you. You may
also send in your comments electronically to our e-mail address:
ls-
lp@redstone.army.mil or FAX 256-842-6546/DSN 788-6546.
Paragraph
Page
SECTION
GENERAL INFORMATION
Purpose .............................................................
Applicability .......................................................
Definitions .........................................................
GENERAL DISCUSSION
VLF tracking system..........................................
System components ...........................................
Frequency measurement ...................................
Adjusting the local oscillator ..............................
FREQUENCY CALIBRATION SYSTEM
STANDARD OPERATING PROCEDURES
References.........................................................
Radio transmissions ...........................................
Traceability........................................................
Capabilities........................................................
Frequency calibration system.............................
Maintenance records..........................................
CHANGE 1
