Retransmission Starting Procedures

TM 11-5821-285-12-1

monitor KY-28 which is installed in the KY-28 No. 1

the

mount.

The HYL-3/TSEC cables are attached as

message

follows: No. 52 to RT/1, No. 55 to RT/2, and No. 57 to

traffic that is

X-MODE connectors on the HYL-3; No. 59 to Power

being

Adapter U-383/VR.

These connections provide for

retransmitte

monitoring on any C-1611D/AIC receiver position No. 1.

d between

Control Indicator C-8157(*)/ARC No. 1 powers and

ground

controls number 1 KY-28, which is used by the operator

stations. If

to monitor all secure retransmission traffic.

the

link

fades out,

NOTE

the operator

When

shall assist

monitor KY-

the ground

28 is not

stations to

available,

reestablish

attach

the

link.

connector

This is done

No. 56 and

the

No. 35 (P1)

operator

to the KY-

transmitting

28 No. 1

through the

security

HYL-

bypass

3/TSEC or

adapter box

by using the

connectors.

FM-3 to

Plain

text

monitor and

break-in

only will be

possible.

3-12. Retransmission Starting Procedures

a. Apply power to console. Make sure FM-1, FM-2,

INT and SEC circuit breakers are pushed in (energized).

b. On the ICS box-1 set the VOL control to

midposition and the transmit interphone selector switch

to position 1.

c. On the HYL-3/TSEC, set the POWER switch to

ON: VOLUME midposition, and FUNCTION switch to

XMIT 2.

d. On FM control head station No. 1, set the

SQUELCH switch to TONE; VOL control to midposition

clockwise; MODE CONTROL switch to T/R; and the

frequency selector to operating frequency of the channel

at station 1 (either ground terminal station may be

designated channel station number one).

e. On FM control head station No. 2 (center unit)

set the FUNCTION switch to T/R, SQUELCH switch to

TONE and the frequency selector to the operating

frequency of channel station 2.

f. After the transceivers have cycled to the operating

frequencies, set the FUNCTION switch on the HYL-3 to

RETRANS.

g. Plug the H-157/U (headset) into the U-94A/U

from the operator's C-1611(*)/AIC position one.

3-13. Retransmission Preoperation Procedures

NOTE

Monitor

means for

the operator

at station 1

to listen to