TB 9-6625-2077-24
EQUIPMENT REQUIREMENTS
calibration procedure. This equipment is issued with Secondary Transfer Calibration
Standards Set 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,
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 paragraph 4 above and are not listed in this
calibration procedure.
Table 2. Minimum Specifications of Equipment Required
Minimum use
Manufacturer and model
Common name
specification
(part number)
Boonton, Model 1121
Dc level
AUDIO ANALYZER
(1121)
Range: -11 to 1 V dc
Accuracy: 0.75%
Frequency
Range: 149 Hz to 100 kHz
Accuracy: 0.25%
Distortion
Capability: < 1%
Measuring receiver system
Flatness measurement:
MEASURING RECEIVER
N5530S consisting of: Spectrum
Frequency: 50 to 500 MHz
Accuracy: 0.188 dB
Analyzer Agilent, Model
E4440A (E4440A), Power meter
Frequency measurement:
Agilent, Model E4419B
Range: 50 to 500 MHz
Accuracy: 0.5%
(E4419B), and Sensor module,
Agilent Model N5532A opt. 504
Power measurement:
Frequency: 250 and 300 MHz
(504)
Range: +10 dB to -80 dB
Accuracy: 0.125 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.