TB 9-6625-2004-35
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. 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.
The accessories required for the calibration are common
usage accessories, issued as indicated in paragraph 4 above, and are not listed in this
Table 2. Minimum Specifications of
Equipment Required
Manufacturer and model
Common name
Minimum use specifications
(part number)
ATTENUATOR
Range: 0 to 120 dB
Hewlett-Packard, Model
355D (355D)
MEASURING RECEIVER
Hewlett-Packard, Model
FM Deviation: 19.25 to 400 kHz
8902A
Accuracy: 1% of reading 1 digit
Range: 189 to 201 V dc and 1 V rms
Fluke, Model 8840A/AF-05
Accuracy: 0.75%
(AN/GSM-64D)
Range: 18 to 990 MHz
(SG-1207/U)
Accuracy: 2.5%
FM :
1 to 300 kHz
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
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. Additional
maintenance information is contained in TM 11-6625-400-12, TM 11-6625-400-35, and
TM 11-6625-2629-14&P for this TI.