Connect the audio cable that is attached to the front of AM-7152 by a short strap to the upper
audio radio connector that is located on the front of the AM-7152. Connect the other end of this
cable to the lower audio connector on the front of RT-1209. Ensure that you have the audio cable
connected as it was described for you. If you have it connected to the lower connector (speaker)
on the AM-7152, it will cause the radio to key continuously when power is applied to the radio
Connect the RF cable from the BNC connector on the amplifier/coupler to the BNC radio-RF
connector J201 on the antenna switching unit (part of the mount).
If the loudspeaker is to be used in the radio, connect the LS-454 loudspeaker to the lower audio
speaker connector on the front of the RT-1209.
Connect an H-250 handset to the upper audio connector on the front of the RT-1209.
If the dipole antenna is used in place of the whip antenna, you must connect the dipole RF cable
to the dipole antenna adapter. Then you can connect the cable with the adapter attached to
connector J203 on the rear of the antenna switching unit.
b. The AN/GRC-213 has to be grounded for safety and proper operation. Grounding straps with quick-
release connectors are installed on the rear of the receiver/exciter and the amplifier-power supply. There are two
grounding straps attached to the mounting tray. The mount is grounded to the vehicle chassis. You are required
to connect the ground from the receiver/exciter and the amplifier-power supply to the two straps coming from the
radio mount. The connection from the mount to the chassis ground already should be connected. However, you
should not assume that it is. You should check it. If you are not sure where it is connected on the vehicle, check
the mount installation instructions for the particular vehicle in which the radio set is installed. Refer to TM
11-2300-476-14-P for this.
26. SUMMARY. In this lesson, you have learned how to install the AN/GRC-213 onto a vehicular mount for
operation as a stand-alone radio set. This lesson is very important, because before you can operate this radio set,
it must be installed properly.