TB 9-6625-2334-24
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
exceed the minimum use specifications listed in table 2.
5. Accessories Required. The accessories required for this calibration are common
usage accessories, issued as indicated in paragraph 4 above, and are not listed in this
calibration procedure.
Table 2. Minimum Specifications of Equipment Required
Minimum use
Manufacturer and model
Common name
specifications
(part number)
AUTOTRANSFORMER
Range: 105 to 125 V ac
Ridge, Model 9020A
(9020A)
CALIBRATOR
Range: -9.5 to 950 V dc
Fluke, Model 5720A (5700A) (p/o
Accuracy: 0.0085%
MIS-35947); w amplifier, Fluke
5725A/AR (5725A/AR)
Range: 5 part in 1010
FREQUENCY DIFFERENCE
Tracor, Model 527E (527E)
METER
FUNCTION GENERATOR
Range: 10 Hz to 1 MHz
(SG-1288/G)
Amplitude: 1 mV to 6 V p-p
Range: 10 to 15 V dc
Fluke, Model 8840A/AF05
(AN/GSM-64D)
SIGNAL GENERATOR
Range: 10 to 1300 MHz
Aeroflex, Model 2023B (2023B) or
Amplitude: 1 to 50 mV
(SG-1207/U)
TIME/FREQUENCY
Range: 1 MHz
Datum, Model ET6000-75
Accuracy: 1.25 parts in 10
-10
WORKSTATION
(13589305)
per day
CALIBRATION PROCESS
6. Preliminary Instructions
a. The instructions outlined in paragraphs 6 and 7 are preparatory to the calibration
process. Personnel should become familiar with the entire bulletin before beginning the
calibration.
b. Items of equipment used in this procedure are referenced within the text by common
name as listed in table 2.
c. Unless otherwise specified, verify the result of each test and, whenever the test
requirement is not met, take corrective action before continuing with the calibration.
Adjustments required to calibrate the TI are included in this procedure. Additional
maintenance information is contained in the manufacturer's manual for this TI.
