TB 9-6625-2112-35
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-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. The accuracies listed in table 2
provide a four-to-one ratio between the standard and TI.
5. Accessories Required. The
accessories listed in table 3
are issued as
indicated in
paragraph 4 above and
are used in this
calibration procedure. When necessary, these items
may be substituted by equivalent items, unless specifically prohibited.
Table 2. Minimum Specifications of
Equipment Required
Minimum use
Manufacturer and model
Common Name
specifications
(part number)
Range:105 to 125 V ac
General Radio, Type W10MT3AS3
(7910809)
Accuracy: 1%
Range:10 Hz to 1 MHz
Fluke, Model PM6681/656
(PM6681/656)
Range:-210 to +36 V dc
Fluke, Model 8840A/AF-05/09
(AN/GSM-64D)
Accuracy: 0.02%
Range: 0 to 100 V (w/attenuator)
(OS-303/G)
13 ns to 10 ms
Accuracy: 3%
Common name
Manufacturer and model
(official nomenclature)
(part number)
ADAPTER
Flexible T-type, 2 jacks, 1 plug, Tektronix, Type
(CALIBRATION FIXTURE)
067-0525-02
(067-0525-02)
ATTENUATOR
X10, Tektronix, Type 011-0059-02
(011-0059-02)
TERMINATION
Bird, Model 8085, 50 W, 50 Ω
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
CHANGE 1