TB 9-6625-2079-24
EQUIPMENT REQUIREMENTS
calibration procedure. This equipment is issued with Secondary Transfer Calibration
Standards Sets 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
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 parenthesis.
5. Accessories Required. The accessories required for this calibration are common
usage accessories, issued as indicated in 4 above, and are not listed in this calibration
procedure.
Table 2. Minimum Specifications of Equipment Required
Minimum use
Manufacturer and model
Common name
specifications
(part number)
MEASURING
Range: 10 to 90% AM
Measuring receiver system N5530S consisting of:
RECEIVER
10 to 270 kHz FM
Spectrum Analyzer Agilent, model E4440A
Accuracy: .5% (1% 1 digit)
(E4440A), Power Meter Agilent, model E4419B
(E4419B), and Sensor Module Agilent, model 518
(518)
Range: 0 to 15 V dc
Hewlett-Packard, Model 3458A (3458A)
Accuracy: .025%
POWER SPLITTER
Range: 10 to 500 MHz
Weinschel, Model 1870A (7916839)
Accuracy: .15 dB
SYNTHESIZED
Range: 10 MHz to 1.2 GHz
Anritsu, Model 68369NV (68369NV)
SIGNAL
Output Level: +10 dBm
Accuracy: 1.5 dB
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.
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 the manufacturer's manual for this TI.