TB 9-6625-1200-24
EQUIPMENT REQUIREMENTS
calibration procedure. This equipment is issued with Secondary Transfer Calibration
Standards Set 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
to-one ratio between the standard and TI. Where the four-to-one ratio cannot be met, the
four-to-one accuracy of the equipment selected is shown in parenthesis.
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
Common name
Minimum use specifications
Manufacturer and model
(official nomenclature)
(part number)
Fluke, Model 5820A-5C-GHZ
Voltage output:
(5820A-5C-GHz)
CALIBRATOR
Range: 10 mV to 5 V ac
Accuracy:
0.25%
Time markers: 0.5 ns to 0.5 s
Leveled sine wave:
Range: 10 mV to 3 V p-p
Frequency: 10 Hz to 150 MHz
Accuracy: 0.25%
Range: 0V to -12 V dc
Fluke, Model 8840A/AF05
Accuracy: 0.25%
(AN/GSM-64D)
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.
d. Unless otherwise specified, all control and control settings refer to the TI.
