TB 9-6625-2164-24
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
provide a four-to-one ratio between the standard and TI. Where the four-to-one ratio
cannot be met the actual 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. The following peculiar accessory is also required for this calibration:
Tektronix, Any Type 7000 series mainframe except 7104 (supplied by user).
Table 2. Minimum Specifications of Equipment Required
Manufacturer and model
Common name
Minimum use specifications
(part number)
FUNCTION/ARBITRARY
Sine Wave Frequency:
Agilent, Model 33250A (33250A)
Range: 10 Hz to 70 MHz
Amplitude: 0 to 4 V
Accuracy: 3%
Dc voltage:
Fluke, Model 8840A/AF05
Range: -1.28 V dc to 10 mV dc
(AN/GSM-64D)
Accuracy: 0.32% + 3 LSD
OSCILLOSCOPE CALIBRATOR
Volts out:
Fluke, Model 5820A-5C-GHZ
Range: 20 mV to 20 V/division (5820A-5C-GHZ)
Accuracy: 0.5%
Time markers:
Range: 1 s to 5 s/division
Accuracy: 0.025%
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 results 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.
