TB 9-6625-2331-35
SECTION II
EQUIPMENT REQUIREMENTS
calibration procedure. This equipment is issued with Secondary Transfer Calibration
Standards Set AN/GSM-286, AN/GSM-287, or AN/GSM-705. Alternate items may be used
by the calibrating activity. The items selected must be verified to perform satisfactorily
prior to use and must bear evidence of current calibration. The equipment must meet or
provide a four-to-one ratio between the standard and TI.
usage accessories, issued as indicated in paragraph 4 above, and are not listed in this
calibration procedure.
Manufacturer and model
Common name
Minimum use specifications
(part number)
AUTOTRANSFORMER
Range: 105 to 125 V ac
General Radio, Type
Accuracy: 1%
W10MT3AS3 (7910809) or
Ridge, Model 9020A (9020A)
or Ridge, Model 9020F (9020F)
CALIBRATOR
ACV: 1.416 to 6.372 Vrms @ 100 kHz
John Fluke, Model 5700A/CT
DCV: 4 to 40 V dc
(p/o MIS-35947)
Accuracy: .275%
FREQUENCY DIFFERENCE
Range: 10 MHz
Tracor, Model 527E (MIS-
METER
Resolution: 1 part in 10-10 per day
10318)
Range: -5.15 to +12.1 V dc
John Fluke, Model 8840A/AF-
Accuracy: 0.2%
05/09 (AN/GSM-64D)
SIGNAL GENERATOR
Range: 1 MHz to 2 GHz
(SG-1207/U)
Amplitude: -27 to -11 dBm
Accuracy: 3%
TIME/FREQUENCY
Frequency: 10 MHz
Autek Systems Corp. Model
WORKSTATION
Accuracy: 1.25 parts in 10-10 per day
620 (MIS-38946)
TUNABLE ACTIVE FILTER
50 kHz low pass
KrohnHite, Model 3940 (3940)
Cutoff frequency accuracy 2%
SECTION III
6. Preliminary Instructions
calibration process. Personnel should become familiar with the entire bulletin before
beginning the calibration.
