TB 9-6625-1957-24
Table 1. Calibration Description Continued
Test instrument
parameters
Performance specifications
Ac dBm/dBV
Range:
40 to +40 dB (in 5 ranges)
20 Hz to 10 kHz
+20 to 15 dB:
Accuracy:
0.5 dB2
20 Hz to 20 kHz
15 to 20 dB:
0.5 dB2
20 Hz to 2.0 kHz
1.5 dB2
2.0 kHz to 10 kHz
Range: 0 to 20 M (in 6 ranges)
Range:
Accuracy:
200 through 200 k (LO )
(0.15 % of reading + 0.015 % of FS (3 counts))
2000 k (LO )
(0.3 % of reading + 0.015 % of FS (3 counts))
2 k through 2000 k (HI )
(0.15 % of reading + 0.015 % of FS (3 counts))
20 M (HI ) only
(0.5 % of reading + 0.015 % of FS (3 counts))
Dc current
Range: 0 to 2000 mA (in 5 ranges)
Accuracy:
200 A through 2000 mA
(0.2 % of reading + 0.015 % of FS (3 counts))
Ac current1
Range: 0 to 2000 mA (in 5 ranges)
Accuracy:
20 Hz to 10 kHz
(0.6 % of reading + 0.05 % of FS (10 counts))
Dc High Voltage Probes (All Models)
1 to 40 kV3
Dc voltage
Range:
Range:
Accuracy:
1 kV and 40 kV
4.0%
10 kV
3.0%
20 kV and 30 kV
2.0%
25 kV
1.0%
1Ac
current is verified by Dc current check.
2Accuracy
applies to TI display value. To obtain correct dB reading, algebraically add the range selected to the display reading.
3Verified at 1000 V only.
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
provide a four-to-one ratio between the standard and TI. Where the four-to-one ration
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
calibration procedure. The following peculiar accessories are also required for this
calibration: mainframe power module (furnished with TI) Tektronix TM506 (MIS-30526/1
Type I) or TM515 (MIS-30526/1 Type II) and extender Tektronix 067-0645-02.
Table 2. Minimum Specifications of Equipment Required