Connecting Dc Power to AM-2060(*) /GRC

TM 11-5820-498-35

Publication

ME-30(*)/U represents ME-30A/U, ME-30B/U, ME-30C/U, a

Item

ME-30E/U.

TS-723(*)/U represents TS-723A/U, TS-723B/U, TS-723C/U,

Spectrum Analyzer

TS-723D/U.

TS-723(*)/U a

TM 11-5097

b. Materials and Tools Required.

ME-26(*)/U represents ME-26A/U, ME-26B/U, and ME-26C/U.

Item

Federal stock No.

Identified in

Resistor, 7.6 ohms (e below).

Resistor, 275 ohms (e below).

Resistor, 14.5 ohms (e below) . . . . . 5905-279-3521

Resider, 300 ohms (e below) . . . . . . . . . 5905-101-8850

5820-893-1323 . . . . . . . . . . . . . . . . . . .

Mounting MT-1029/VRC . . . . . .

TM 11-5820-498-12

Cable Assembly, Power, Electrical CX- 5995-823-2726 . . . . . . . . .. . . . . . . . . . .

TM 11-5820-498-12

4720/VRC (10 ft).

Cable Assembly, Special Purpose, Elec- 5995-889-1061 . . . . . . . . . . . . . . .

TM 11-5820-498-12

trical CX-4655/GRC (e below).

5935-863-5876 . . . . . . . . . . . . . . . . . . . .

TM 11-5820-401-35

Connector, receptacle, electrical (male,

oval; same as J21 in MT-1029/VRC).

Connector, receptacle, electrical (female, 535-853-5944 . . . . . . . . . . . . . . . . . . . .

TM 11--5820-401-35

oval; same as J23 in MT-1029/VRC.

Connector, receptacle, electrical (female, 5935-853-6044. . . . . . . . . . . . . . . . . . . .

11-5820-401-35

elliptical; same as J24 in MT-1029/

VRC).

Tool Kit, Electronic Equipment TK-

100/G.

Tool Kit, Electronic Equipment TK-

106/G.

Notes

MT-1029/VRC is required if a fabricated power distribution box (d below) is not avaailable.

For fabrication of power distribution box (d below as substitute for the MT-1029/VRC.

AM-2060(*)/GRC SET POWER connector

c. Power Source Required. (1) Power Supply

through the CX-4655/GRC.

PP-6224/U or

PP-2953(*)U maybe used

(1) Remove the two connector plugs from the

to provide the operating dc voltage for the

CX-4655/GR C (b above).

AM-2060(*)/GRC. The PP-2952(*)/U is normal

(2) Designate one of the connector plugs as

internally adjusted to provide 25.2 volts dc output

the transmit dummy load assembly, and correct

(TM 11-6130-233-12.)

the load resistors (b above) as shown in figure

(2) If a dc power source other than the

3-1.

ones in (1) above

is used, it should be

(3) Designate one of the connector plugs as

capable of providing a regulated, filtered, dc out-

the receive dummy load assembly, and connect

put of 25.5 volts dc at approximately 5 amperes.

the load resistors (b above) as shown figure 3-1.

(3) If the area in which the testing is being

performed has difficulty in obtaining an ac power

3-4. Connecting Dc Power to AM-2060(*) /

source that is within the operating ac input volt-

GRC

age of the PP-2953(*)/U or other power supply),

There are two methods for connecting dc power to

use Variable Power Transformer TF-523/U (fig.

the AM-2060(*)/GRC. One method is to use the

3-3). Refer to TM 11-5950-212-15 for installa-

MT-1029/VRC (a below): the other method is to

tion and maintenance of the TF-523/U.

use a fabricated power distribution box ( b

d. Power Distribution Box. As a substitute for

below).

the MT1029/VRC which is only used as a con-

CAUTION 1

necting device between the dc power source and

Before making dc power connection make

the AM-2060(*)/GRC during testing and trouble-

sure the dc power supply POWER switch and

shooting, a power distribution box may be fabri-

the PWR switch on the AM-2060(*)/GRC

cated. Refer to paragraph 3-4b for fabrication de-

are set to off.

tails.

CAUTION 2

e. Transmit and Receive Dummy Load Assem-

If the CX-4720/VRC power cable is used

blies. Fabricate two dummy load assemblies to im-

itate the transmit and receive states of the re-

(a(2) and b(4) below), make sure the red-

white leads are connected to plus (+) ter-

ceiver-transmitter that would be connected to the

Change 2

3-2