TB 9-6625-197-24
EQUIPMENT REQUIREMENTS
calibration procedure. This equipment is issued with Secondary Transfer Calibration
Standards Set, AN/GSM-286; AN/GSM-287; or AN/GSM-440. 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 parentheses.
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)
FUNCTION
Range: 30 kHz @ 3 V p-p
Agilent, Model 33250A
GENERATOR1
Accuracy: N/A
(33250A)
Range: 0 to 5 V dc
Hewlett Packard, Model
Accuracy: 0.05% rdg
3458A (3458A)
Range:
0 to 35 V dc
Fluke, Model 9500B/3200
CALIBRATOR
Accuracy: 0.48% of applied
(9500B/3200)
Range: Time markers
Accuracy: Frequency, 0.1% of applied
Range: Leveled sine wave,
50 kHz to 250 MHz, 30 to 600 mV p-p
Accuracy: Referenced to 50 kHz
Flatness, 7% of applied
PULSE GENERATOR1
Range: 100 kHz, 1 V p-p, <875 ps rise time
Agilent, Model 81110A Pulse
Accuracy: N/A
Pattern Generator (81110A)
Used in adjustment process only.
1
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.