Aural Radio Receiver Monitoring.

TM 32-5895-227-14&P

Recording and Recorder Monitoring. Input

(3)

Plug

headset

into

HEADSET

receptacle.

to a Monitor Control Panel SB-2600/G may come from

(4)

Connect radio receivers to LINE 1 and

either of two Radio Receivers R-390A/URR. Output

LINE 2 receptacles, respectively, on rear panel of SB-

from an SB-2600/G may go to either of two recorders.

2600/G.

Only one recorder at a time may be controlled by an SB-

(5)

Connect radio receivers to power

2600/G. By using parallel connecting cables to a

source.

second SB-2600/G, two recorders may be controlled at

(6)

Turn receivers on.

the same time and either R-390A/URR may be selected

for either recorder. The operator can also provide input

to a recorder using the MIKE DUB on the respective SB-

NOTE

2600/G. The operator can monitor input to each

Tests (7) through (12) check

recorder at the left earpiece of the respective SB-

operation of the intercom power

2600/G headset. Recorder input is also available on the

supply, both headset ear pieces, and

central station monitor line. See figure 3-6 for a typical

all amplifiers except AMP 3.

hookup. An example follows:

(7)

Turn RCVR MONITOR ON switch on

EXAMPLE: Using either of two SB-2600/G panels with

(up).

the parallel hookup, use recorder No. 2 to record

(8)

Flip RCVR MONITOR PRTY 2 PRTY

signals from receiver No. 1.

1 switch down. Obtain a radio signal or noise in left

earpiece of headset. Vary LINE I radio receiver gain

(1)

Adjust receiver for satisfactory output

control and tuning, as necessary.

level. See TM 11-5820-358-35.

(9)

Flip RCVR MONITOR PRTY 2 PRTY

(2)

Turn RECORDER IN RCVR 1 switch

1 switch up. Obtain a radio signal or noise in left

on (up). The receiver is selected.

earpiece of headset. Vary LINE 2 radio receiver gain

(3)

Push RECORDER 2 ON button.

control and tuning, as necessary.

Recorder is selected, connected to receiver, and

(10) Turn RCVR MONITOR ON switch off

recorder is started.

(down).

(4)

Turn

RECORDER

OUTPUT

(11) Plug microphone into MIKE DUB

MONITOR switch on (up). The left earpiece of the SB-

receptacle on panel.

2600/G headset and central station monitor line is

(12) Tap microphone and listen for a

connected to recorder. Recorder No. 1 is locked out of

sound in left earpiece.

circuit, but can be used with other SB-2600/G.

Aural Radio Receiver Monitoring.

(5)

Push and hold MIKE DUB button.

(1)

To monitor a signal with Radio

Receiver is disconnected from recorder and microphone

Receiver R-390A/URR, refer to TM 11-5820-358-35.

is connected.

Operator comments can now be

(2)

Receiver output is made available at

recorded. When button is released, microphone is

a monitor button on Telephone Set TA-676/G or on

disconnected and receiver is reconnected.

Monitor Control Panel SB-2600/G, whichever is

(6)

If monitor signal in left earpiece of

applicable, by connecting receiver output cable to a line

SB2600/G headset suddenly stops, the problem

receptacle on bottom side of TA676/G case or to J6 or

probably is:

J7 receptacle on rear cover of SB-2600/G. For input to

(a) Receiver signal has been lost.

receiver, proceed as follows:

(b) Recorder tape is near end of

(a) Patch

antenna

output

reel.

receptacle of desired antenna to input of desired

Antenna Coupler CU-872A/U.

(7)

To find and correct any one of the

(b) Patch CU-872A/U output to

above problems, proceed as follows:

input of desired receiver.

(a) Flip RCVR MONITOR PRTY 2

Radio Teletypewriter Monitoring.

PRTY 1 switch down.

(1)

Connect Radio Receiver R-390A/URR

(b) Turn RCVR MONITOR ON

as outlined in paragraphs 3-3m(2)(a) and (b).

switch on (up) long enough to determine if signal has

(2)

See TM 11-5820-358-35 to set up

been lost.

receiver for teletypewriter reception.

(3)

See TM 11-5815-206-12 for terminal

RECORDER 2 OFF button and then, if recorder No. 1

equipment required between receiver and teletypewriter

is not in use with other SB-2600/G, push RECORDER I

to convert receiver output into dc pulses for teleprinter.

ON button.

3-12