SECTION II. EQUIPMENT REQUIREMENTS

TB 9-6625-2325-24

Table 1. Calibration Description - Continued

Test instrument

Performance Specifications

parameters

Linear analog output

Range: 0 to 2 V dc

Accuracy: 1%

(model 8920A only)

Ac + dc voltage

Range: 0 to 700 V

Accuracy: Add to ac specifications:

Above 2 mV (10 digits or 0.5 dB)

Below 2 mV (100 digits or 5 dB)

Use 50 Hz to 200 kHz specifications for dc only.

dB display mode

Range: 12 ranges: 50, 75, 93, 110, 124, 135, 150, 300, 600, 900, 1000, and 1200

dB resolution: 0.01 dB

1Maximum

V Hz product is 1 x 108.

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-286, 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 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 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