TB 9-6625-2240-24
Table 1. Calibration Description - Continued
Test instrument
Performance specifications
parameters
Range: 5 s to 0.05 s after start of delaying A sweep
Delay time and
Accuracy: 0.01 major dial divisions between dial settings of one major division or less
differential time
1% between dial settings of more than 1 major dial division, increasing to 0.5%
measurement
over entire range
Risetime
Range: 1.75 ns with aberrations not to exceed +4% or -4%, and total p-p of 4%
(1.4 ns for Tektronix, Type 475A)
Dc to 200 MHz (Dc to 250 MHz for Tektronix, Type 475A)
Range: 300 mV, l%
Calibrator
EQUIPMENT REQUIREMENTS
calibration procedure. This equipment is issued with Secondary Transfer Calibration
Standards Set AN/GSM-286, 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.
5. Accessories Required. The accessories required for this calibration are common
calibration procedure. The following peculiar accessory is also required for this calibration:
5-80 pF standardizer.
Table 2. Minimum Specifications of Equipment Required
Manufacturer and model
Common name
Minimum use specifications
(part number)
Voltage input:
Fluke, Model 8840A/AF05
Range: -15.23 to +113 V dc
(AN/GSM-64D)
Accuracy: 0.375%
Voltage output:
Fluke, Model 5820A-5C-GHZ
CALIBRATOR
Range: 12 mV to 60 V
(5820A-5C-GHZ)
Frequency: 1 kHz
Accuracy: 0.75%
Time markers:
Range: 1 ns to 0.5 s
Accuracy: 0.25%, 0.01 s to 5 ms
0.5%, 10 ms to 0.5 s
Risetime: 437.5 ps
Aberrations: 1%
Level sine wave:
Reference frequency: 50 kHz
Amplitude: 30 mV
Capacity:
>200 MHz
