Table 3. Accessories Required - TB-9-6625-003-350007

SECTION II EQUIPMENT REQUIREMENTS - TB-9-6625-003-350006

TB-9-6625-003-35 Hewlett-Packard Models 415A (AN/USM-37 and IM-97/U) 415B 415BR and 415D (IM-157B/U) General Microwave Model 351 Manual
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TB 9-6625-003-35

Table 2. Minimum Specifications of Equipment Required

Common name and/or

Minimum use

Manufacturer, model and (part number)

Item

(official nomenclature)

specifications

AN/GSM-287

AN/GSM-256 and AN/GSM-259

ESI, Model DT72A

North Atlantic1 Research,

RATIO

Range: .000955 to

(7915908)

Model RB 503/10 (MIS-

TRANSFORMER

1.00000

10232)

0.75%

Accuracy:

RESISTANCE 2

Biddle-Gray, Model

Same as AN/GSM-287

Range: 200Ω and 200

71-631 (7910328)

STANDARD

kΩ

0.75%

Accuracy:

SWR METER

Range: 0 to 60 dB

N/A

Hewlett-Packard, Model

415E (7910160-2)

0.75%

Accuracy:

Same as AN/GSM-287

Hewlett-Packard,

TEST OSCILLATOR

Range: 980 to 1020 Hz

Model 652A (MIS-

Accuracy:

Amplitude

10224)

1For

AN/GSM-259 only.

2Two

required.

Table 3. Accessories Required

Common name

Description

Item

(official nomenclature)

(part number)

ADAPTER

BNC T type, 2 jacks, 1 plug (MS35173-274C)

ADAPTER (ISOLATION PLUG)

2-wire to 2-wire (7912356)

CABLE1 (CABLE ASSEMBLY)

30-in., RG-58/U; BNC plug terminations (7907467)

CABLE (TEST LEAD)

36-in., RG-58/U; BNC plug to double banana plug (7907471)

CABLE (CABLE ASSEMBLY)

30-in., RG-58/U; double banana plug terminations (7907470)

PROBE (TEST LEAD)

30-in., RG-58/U; double banana plug to probe and alligator clip

(7911305)

TERMINATION (DUMMY

200-Ω load on BNC plug termination (7907461)

LOAD)

TERMINATION (DUMMY

50-Ω feed-through BNC plug to BNC jack terminations

LOAD)

(11048B)

1Four

required.

SECTION III

CALIBRATION PROCESS FOR HEWLETT-PACKARD

MODEL 415A (AN/USM-37 AND IM-97/U)

6. Preliminary Instructions

a. The instructions- outlined in paragraphs 6 and 7 are preparatory to the calibration

process. Personnel should become familiar with sections I, II, and III before beginning the

calibration.

b. Items of equipment used in this procedure are referenced within the text by common

name and item identification number as listed in tables 2 and 3. For the identification of

equipment referenced by item numbers prefixed with A, see table 2, and for prefix B, see

table 3.

WARNING

HIGH VOLTAGE is used or exposed during the performance of

this calibration.

DEATH ON CONTACT may result if

personnel fail to observe safety precautions.

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