SECTION 8 HRCRD OPERATlONS
The HRCRD is used with the SINCGARS
manpack radio, AN/PRC-119A/D/F, and
AN/VRC-88A/D/F and -91A/D/F.
Using the HRCRD, a manpack radio operator
can control the Channel, RF Power, Mode,
and COMSEC functions of the radio, without
requiring access to the RT. RT FCTN switch
must be set to REM for HRCRD to be
The level of audio volume at the HRCRD can
be adjusted by use of the thumb wheel on the
side of the HRCRD.
The HRCRD back light can be turned on with
one press of the round light button. A second
press of the light button turns the backlightoff.
The cable of the HRCRD forms a Y, with one
end connected to the RT AUD/DATA or
AUD/FILL port. The other end is connected to
the 6-pin connector on Battery Box
CY-8523C or the AUX connector of the
RT-1523E. This battery box is required for
use of the HRCRD in normal manpack radio
Access to the RT Front Panel is required
whenever it is necessary to change the FCTN
switch, to adjust audio volume at the RT, and
to change the light level in the RT display.