TB 9-6625-1998-35
SECTION II
EQUIPMENT REQUIREMENTS
4. Equipment Required.
Table 2 identifies the
specific equipment to be
used in this
calibration procedure. This equipment is issued with Secondary Transfer Calibration
Standards Set AN/GSM-287. 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. The accuracies listed in table 2 provide a four-to-one ratio between the
standard and TI.
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
Manufacturer and model
Common name
Minimum use specifications
(part number)
AUDIO ANALYZER
Boonton, Model 1120-S/10
Range: 19.6 Hz to 204 kHz
(MIS-35954/2)
Accuracy: .25%
Ac level measurement:
Range: 0.95 mV to 10.5 V
Accuracy: 1.25%
Distortion measurement:
Range: 20 Hz to 100 kHz
Capability: to 1 %
Dc voltage:
John Fluke, Model 8506A /CT
Range: 46 to 52 V
(p/o MIS-35947)
Accuracy: 0.5%
Biddle-Gray, Model 71-631
Range: 1000Ω
(7910328)
SWR METER
Range: 21.5 dB down from 1 mV
Hewlett-Packard, Model 415E
Accuracy: 1.25%
(7910160-2)
SECTION III
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
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