TB 9-4931-444-35
SECTION II
EQUIPMENT REQUIREMENTS
meet or exceed the minimum use specifications listed in
4. Equipment Required
to-one accuracy ratio between the standard and TI.
Table 2 identifies the specific equipment used in
this
Where the four-to-one ratio cannot be met, the actual
accuracy of the equipment selected is shown in
secondary transfer standards calibration sets NSN 6695-
parenthesis.
00-621-7877,
AN/GSM-256
NSN
4931-00-525-
8175,AN/GSM-259' NSN 4931-01-019-1829, and
5. Accessories Required
transportable maintenance calibration facility ANfSM-
55(), and electronic shop set TOE 29-134H and is to be
used in performing this procedure. Alternate items may
The accuracies listed in table 3 are issued as
be used by the calibrating activity when the equipment
indicated in paragraph 4 above and are to be used in this
listed in table 2 is not available. The items selected must
be verified to perform satisfactorily prior to use and must
may be substituted by equivalent items unless
bear evidence of current calibration. The equipment
specifically prohibited.
must
Table 2. Minimum Specifications of Equipment Required
Minimum Use
Manufacturer, Model, and Part Number
Item
Common Name
Specifications:
AN/GSM-256, AN/CSM-259,
Level A
and AN/TSMJS
Al
Range: 105 to 125 vac
---
General Radio, Model
Accuracy: 3%
W10OMT3AS3 (TF-510/U)
(7910809).
A2
Range: 393 mv to 70
Dana, Model 5703-S-2127
John Fluke, Model 883AB
vdc
(7912606)
(TS-2843/U) or John Fluke,
Accuracy: +0.25%l
Model 887ABAN
(MIS-10216).
A3
Must be compatible
Tektronix, Type RM56 IA
Tektronix, Type 545A/B
TI
(7910655-2) w/plug-ins
(must be provided with TI).
3A6 (791144 1-1) and 3B3
(7911437-1).
A4
PLUG-IN UNIT
Range: 50 to 200 mv
Tektronix, Type 3S76
-
Accuracy: 3%
(7910657-1).
A5
PLUG-IN UNIT
Range: I to 3 nsec
Tektronix, Type 3T77
--
Accuracy: +3%
(7910656-1).
A6
RATIO
Range: 0.00400 to
---
Gertsch, Model RT60
1.01000
(TF-5 15/U).
A7
TEST
Range: 600 kHz band-
-- -
Tektronix, Type 453
width
(AN/USM-273) w/X10
probe Tektronix, Type
010-0 1884-00; and Hewlett-
Packard, Model 180D.'
A8
VOLTAGE
Range: 100 mv to 100
John Fluke, Model 332A
John Fluke, Model 760A
STANDARD
vdc
(7911393)
(TS-2734/U).
Accuracy: t0.25%'
1O 5%
for AN/GSM-256 and AN/TSM 55
2For AN6CSM-256 only
3O 3% for AN/GSM-256 and AN/TSM-55
1
.
Not fielded as of the date of this bulletin
3