Figure 2-1. Control, Transponder Set C-6280(P)APX, controls and indicators.

NAVSHIPS 0967-217-4010

TM 11-5895-490-20

a. Control, Transponder Set C6280(P)/APX. (cont)

Position

Function

Control

Enables RT-859/APX-72 to reply to TEST

RAD TEST

RAD TEST-MON switch

mode interrogations from an AN/APM

123A(V), or equivalent. Other functions of

this switch position are classified.

Enables the monitor circuits of the TS-1843/

MON

APX.

Disables the RAD TEST and MON features of

OUT

the C6280(P)/APX.

reply code number. The elapsed time meter in-

b. Receiver-Transmitter, Radio RT859/

dicates the time the equipment has been in

APX72. (fig. 22) The MODE 2 code select

operation.

switch on the front panel of the RT859/APX-

72 selects and indicates the mode 2 four-digit

TM5895-490-20-9

Figure 2-1. Control, Transponder Set C-6280(P)APX,

controls and indicators.