TB 9-6625-2102-35
EQUIPMENT REQUIREMENTS
calibration procedure. This equipment is issued with Secondary Transfer Calibration
Standards Set AN/GSM-286. 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
standard and the TI. Where the four-to-one ratio cannot be met, the actual accuracy of the
equipment selected is shown in parenthesis.
usage accessories, issued as indicated in paragraph 4 above and are not listed in this
calibration procedure. The following peculiar accessories are also required for this
calibration: 50 Ω feedthrough termination, BNC plug to BNC jack, Hewlett-Packard, Model
11048C (11048C).
Manufacturer and model
Common name
Minimum use specifications
(part number)
AUDIO ANALYZER
Range: 100 Hz and 20 kHz
Boonton, Model 1121 (1121)
Accuracy: 0.5%
Capability: <0.125% distortion
Fluke, Model PM6681/656
FREQUENCY COUNTER
Range: 200 kHz and 12 MHz
(PM6681/656)
Accuracy: 0.5%
Range: 52 s to 48 ms
Accuracy: 0.5%
Hewlett-Packard, Model 3458A
Range: -14.97 to 15.03 V dc
(3458A)
Accuracy: 0.05%
Range: 4.5 mV to 5 V ac
Accuracy: 1 %
Range: 15 V p-p
(OS-303/G)
Risetime: < 25 ns
6. Preliminary Instructions
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.
CHANGE 1
