AMPLIFIER-ADAPTER, VEHICULAR AM-7239/VRC
mounting adapter is included in the maintenance group. The
mounting adapter provides physical support
and electrical power for the reference RT.
Operating instructions are in TM 11-5820-890-10-1. Unit maintenance instructions are in TM 11-5820-890-20-1.
Direct Support maintenance instructions are in chapter 4 of this manual.
3-4. MOUNTING BASE, ELECTRICAL EQUIPMENT MT-6352/VRC.
The mounting base is used with the radio. A power cable connects the mounting base to a 28 V dc supply. The
power is routed to the radio. The mounting base can be secured to the work surface. This may be desirable in
some maintenance shops. The mounting base is covered in TM 11-5820-890-20-1 and chapter 7 of this manual.
3-5. FILL DEVICE, ELECTRONIC COUNTER-COUNTERMEASURES MX-18290/VRC.
This fill device is used to hold and transfer ECCM fill data. It can hold hopsets, lockout sets, and TRANSEC
variables. Operating instructions are in TM 11-5820-890-10-1. Unit maintenance instructions are in
TM 11-5820-890-20-1. Direct Support maintenance instructions are in chapter 17 of this manual.
TRANSFER DEVICE, ELECTRICAL KYK-13/TSEC.
This fill device is used to hold and fill COMSEC fill data. Operating instructions are in TM 11-5810-292-13.
3-7. INTERCONNECTING DEVICE J4501/GRC.
The interconnecting device is used to interconnect a unit under test and the test equipment. It includes a test
adapter, cables, and tools used for unit repair. The COEI list in Appendix C lists the items found in the
interconnecting device. All of the items that come with the interconnecting device are stored in the chest. It
functions as a shipping and storage container.
a. Test Adapter. The test adapter provides connections for the test equipment, reference fixture, and
units under test. It performs several signal switching functions. The capabilities of the test adapter are covered in
paragraph 3-8. The test adapter is secured inside the lid of the interconnecting device chest. It is shown in
b. Tool Kit. The tool kit includes the following tools:
Threaded screw insert replacement tools
Torque wrench and adapters
Open end wrenches
Deep well socket set
The module extractor is used to remove modules from the RT. Instructions for using it are included in chapter 2.
The torque wrench, adapters, and sockets are used to torque the cover screws and other items.
c. Electronic Equipment Parts Kit. The items included in the parts kit are used to connect the test setups.
It contains 13 adapters, three cables, and a test lead.