Table 2. Minimum Specifications of Equipment Required.

Table 1. Calibration Description Continued.

SECTION III. CALIBRATION PROCESS

Calibration Procedure For Radio Test Set, An/Grm-114A (Ifr, Model Fm/Am-1100S) Page Navigation
4

TB 9-6625-2059-24

SECTION II

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 Sets, AN/GSM-287 and AN/GSM-440, or Secondary Reference Set, NSN

4931-00-621-7878. 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 provided 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 is shown in parentheses.

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.

Manufacturer and model

Common name

Minimum use specifications

(part number)

ATTENUATOR

Frequency range: 100 to 999 MHz

Hewlett-Packard, Model 355D

Attenuation: 0 to 80 dB

(355D)

Weinschel, Model 9918-20dB

ATTENUATOR (FIXED)

Frequency range: 100 to 999 MHz

(9918-20) (9918 Set)

Attenuation: 20 dB

Accuracy: 0.625 dB

AUDIO ANALYZER

Capability: 0.7 to 50% from

Boonton, Model 1121

20 to 9999.9 Hz

(1121)

AUTOTRANSFORMER

Range:

105 to 125 V ac

Ridge, Model 9020A

Accuracy: 1%

(9020A),

Fluke, Model 5720A (5720A) (p/o

CALIBRATOR

Range:

0.095 to 315 V ac

Accuracy: 1.25%

MIS-35947); w/ amplifier, Fluke

Range:

0.097 to 309 V dc

5725A/AR (5725A/AR)

Accuracy: 0.75%

Range: 1 MHz to 1 GHz

Fluke, Model PM6681/656

FREQUENCY COUNTER

Accuracy:0.0000125%

(PM6681/656)

Range: 999.9 to 20002 Hz

Accuracy:0.0025%

Range: 1.8 k Hz to 900 MHz

Measuring receiver system N5531S

MEASURING RECEIVER

Accuracy:1.75%

consisting of: Spectrum Analyzer,

Measurement range: 0 to 90 dBm

Agilent Model E4440A (E4440A),

Accuracy:0.625 dB

Power meter, Agilent Model E4419B

(E4419B), or Power meter, Agilent

Range: 10 to -10 dBm at 10 MHz

Model N1911A (N1911A) and Sensor

to 1 GHz

modules, Agilent Model N5532A opt.

Accuracy:2.5%

504 (504), 518 (518), 526 (526)

Range: 0 to 16.75 V dc

Hewlett-Packard, Model 3458A

MULTIMETER

Accuracy:0.16%

(3458A)

Range: 0.054 to 3.5 V Pac

Accuracy:1.25%

Range: 0 to 600 Ω

Accuracy:2.5%

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