The HRCRD audio cable (1, figure 1-13) is connected to handset connector J2 on
loudspeaker (3, figure 1-9). The HRCRD signal cable (2, figure 1-13) is connected to cable
Figure 1-13. HRCRD Cable Connections
Radio Operation in Mobile Mode.
The RT FCTN must be set to SQ ON or SQ OFF position for radios in mobile mode. This
allows driver and/or passenger to control radios while vehicle is mobile.
Control of radio can be given to LMS crew by switching RT FCTN switch to REM position at
The radio can now be operated as normal. Refer to TM 11-5820-890-10-1 for operating
b. Static Mode. In static mode, LMS crew is responsible for monitoring and controlling radios.
RRA Setup in Static Mode.
The two cables marked SPEAKER and cable marked HRCRD are disconnected from RRA.