Components.

have been properly matched, tile singal generator

each RF Cable Assembly CG1471/U (9")

is used to make adjustments, alinement and final

each Adapter Connector UG636A/U

testproccdurcs.

each Adapter Connector UG971/U

each Electrical Dummy Load Case CY-

2. Components. Electronic Equipment Main-

1892/URM

tenance Kit MK-288/URM consists of the follow-

ing components:

3. Uses. The dummy loads (fig. 2) are used as

1 each Electrical Dummy Load DA-121/U

impedance-matching substitutes for balanced

(rhombic or doublet) or unbalanced (whip or

1 each Electrical Dummy Load DA-122/U

1 each Electrical Dummy Load DA-123/U

straight wire) antennas in the following radio

receivers:

1 each Electrical Dummy Load DA124/U

Dummy

load

Radio receiver

Antenna type

DA-121/U - - - - - - - - - - - R-390/URR, R-390A/URR, R-391/URR, R-392/ Doublet or rhombic.

URR.

DA-122/U- - - - - - - - - - - - - - - - R-389/URR

Straight wire (long).

DA-123 /U- - - - - - - - - - - - - - - - Radio Receiving Set AN/G RR-5 - - - - - - - Straight wire (medium) or whip.

DA-124/U - - - - - - - - - - - R-390/URR, R-390A/URR, R-391/URR, R-392/ Straight wire (short) or whip,

URR.

and are used to connect the dummy load between

a. The dummy load must be

4. Connections.

the generator and the receiver. Connect the long

connected between the rf output terminals (50

cord (3 ft 11 in.) between tile generator and the

ohms) of the signal generator and the antenna

dummy load input. Connect the short cord

input terminals of the radio receiver (fig. 3). The

between the dummy load output and the receiver

output indicator is connected to the output of the

antenna input.

receiver for alinement purposes. Two cords

b. RF Cable Assembly CG-1471/U is used to

CG409/U are supplied with the signal generator