Table 1. Calibration Description Continued

Table 2. Minimum Specifications of Equipment Required

Calibration Procedure For Voltmeter, Frequency Selective An/Usm-490(), And Selective Level Meter, Models 3586B And 3586C W/Options 001, 003, And 004 Page Navigation
3

TB 9-6625-2137-24

Test instrument

parameters

Performance specifications

Phase jitter

Demodulated tone frequency range: 960 to 1060 Hz

Accuracy: (10% +0.5 p-p)

Input signal level: <30 dB below FS, -65 dBm

Residual range jitter: .5 p-p (50 kHz to 32.5 MHz)

Balance

Range: 50 Hz to 10 MHz

Accuracy: InputFrequency

Balance

124

10 kHz to 10 MHz -36 dB

135

10 kHz to 1 MHz

-36 dB

600

50 Hz to 108 kHz

-40 dB

Adjacent channel

Range: Bandwidth 3100 Hz

rejection

Accuracy: 75 dB minimum 2850 Hz

Carrier channel

Range: Bandwidth 20 Hz

rejection

Accuracy: 30 dB 45 Hz

60 dB 90 Hz

Range: Bandwidth 400 Hz

Accuracy: 60 dB 1100 Hz

Range: Bandwidth 3100 Hz

Accuracy: 60 dB 1850 Hz

Range: Bandwidth 400 Hz 1100 Hz at 60 dBm 0 rejection

Pilot (20 Hz) filter bandwidths:

Range: 45 Hz at 30 dBm 0 rejection

Range: 90 Hz at 60 dBm 0 rejection

Band pass flatness

Range: Bandwidth 3100 Hz 1000 Hz

Accuracy: 0.3 dB

Range: Bandwidth 400 Hz 50 Hz

Accuracy: 0.3 dB

Range: Bandwidth 20 Hz 3 Hz

Accuracy: 0.3 dB

1Range

specifications calibrated to -100 dBm to +20.

2Not

applicable for model 3586C.

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 Set AN/GSM-287 and 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 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.

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