TB 9-6625-096-50
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
accuracy ratio between the standard and test instrument. 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 with
secondary
transfer calibration standards set 4931-621-7877 and are to be used in this calibration
procedure. When necessary, these items may be substituted by equivalent items unless
specifically prohibited.
Table 2. Minimum Specifications of Equipment Required
Minimum use
Manufacturer, model, and
Item
Common name
specifications
part number
Collins, Model 478A-2
A1
CALIBRATION TESTER
Range: 180
ZIFOR 2 (6625-150-6977)
(ZIFOR)
Accuracy: 0.5
A2
Range: 0 to 21.5 vdc
Dana, Model 5703-S-2127
(7912606)
Accuracy: 1% of indication
A3
FREQ/TIME MEASUREMENT Range: 0 to 335 MHz
Systron-Donner, Model
1037M2 (7910628)
Accuracy: 0.002%
COUNTER)
A4
Tektronix, Model RM561A
Range: 0 to 1 v/div; 0 to 1
(7910655-2)
msec/div
Tektronix, Model 3A6
(7911441-1)
Tektronix, Model 3B4
(7912040-1)
A5
RADIO TEST SET (POWER
Hewlett-Packard, Model
Range: 1.13 to 1350 w
METER) w/THERMISTOR
431C (7910462-2)
Accuracy: 8%
MOUNT
Hewlett-Packard, Model
478A (7910461)
A6
POWER SUPPLY
Range: 25 vdc 6 amps
NJE, Model CS36CR30
(7907346-2)
A7
Range: 9,100 to 10,800 Hz
Preston, X-Mod 134A
(MIS10224)
A8
Range: 0 to 10 v rms
Singer, Model 3574M
(MIS10299)
Accuracy: 1%
Table 3. Accessories Required
Item
Common name
Description and part number
B1
ADAPTER
BNC jack to UHF plug (7601754)
B2
ADAPTER
BNC T, 2 jacks, 1 plug (MS-35173)
B3
ADAPTER
BNC plug to N jack (10519458)
B4
ADAPTER
BNC jack to N plug (10519457)
B5
ADAPTER
Double banana jack to BNC plug (7909401)
B6
ADAPTER
Single banana jack to alligator clip (red) (7907556)
1
B7
CABLE
36-in., RG58( )/U BNC plug to alligator clips (7909410)
2
B8
CABLE
30-in. RG58( )/U BNC plug terminations 97907467)
2
B9
LEAD2
24-in. No 18, single banana plug terminations (red)
(7907497)
B10
LEAD
24-in. No. 18, single banana plug terminations (black)
2
(7907498)
1Two
required.
2Three
required.
3