SECTION II. EQUIPMENT REQUIREMENTS

SECTION I. IDENTIFICATION AND DESCRIPTION

SECTION III. CALIBRATION PROCESS

Calibration Procedure For Radio Frequency Power Test Set, An/Urm-213 Page Navigation
3

TB 9-6625-177-24

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. 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. 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 the

calibration procedure. The following peculiar accessories are also required for this

calibration: Calibration Element, Bird Electronic Corporation, Model 4410-070, and 50 Ω

termination supplied with TI.

Table 2. Minimum Specifications of Equipment Required.

Manufacturer and model

Common name

Minimum use specifications

(part number)

Boonton, Model 1121

AUDIO ANALYZER

Audio frequency: Between 900 and 1100 Hz

Output voltage: Between 0.05 and 1.6 V rms (1121)

into 600 Ω (resistive)

Kalmus Engineering, Model 1-

LOW PASS FILTER

Range: 200 kHz to 2000 MHz

60-564-1, -2, -3 (1-60-564-1)

(1-60-564-2) (1-60-564-3);

Telonic, Model TLC20-3EF1

(TLC20-3EF1),

TLC30-4EF7 (TLC30-4EF7),

TLC75-6EF1 (TLC75-6EF1),

TLC125-6EF1 (TLC125-6EF1),

TLC200-6EF1 (TLC200-6EF1),

TLC450-6EF1 (TLC450-6EF1),

TLC700-6EF1 (TLC700-6EF1),

TLS1225-5EF1 (TLS1225-5EF1)

Fluke, Model 8846A (8846A)

MULTIMETER

Range: 0 to 10 V dc

Accuracy: 0.01%

Audio frequency: 900 to 1100 Hz

Voltage range: 0.05025 to 1.5915 V rms

Accuracy: 0.01%

Ohmmeter range: 48 Ω to 52 Ω

Accuracy: 1%

Ophir RF, Model XRF733

RF POWER

Frequency range:200 kHz to 2000 MHz

(XRF733)

AMPLIFIER

Power range: 0 to 100 W

Accuracy of monitoring equipment

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