Specifications

Table Of Contents
INSTALLATION
Page 28 MRC-565 Packet Data Radio Operations and Maintenance
Figure 6. DC Power Connector
Note the indent is at top of plug. The +12V inputs are on top side of connectors. Be careful not
to try and plug the cable into the connector in reverse order so that +12V is on bottom. If
plugged in backwards the +12V is shorted to ground (on PA board) and the DC line fuse will
blow and or a trace on the Power Amp board may burn out. Do not force.
4.1.2 VHF Antenna
Connect the antenna cable to the BNC RF connector. RG-223 may be used for cable lengths
under 50 feet. Use a large diameter cable (RG-214) for cable lengths up to 100 feet. Refer to
Appendix B for proper cable length.
4.1.3 GPS Antenna
An external GPS antenna is required when the internal GPS receiver is used. Connect the GPS
antenna cable to the SMA connector on the front panel. The antenna port has 5 VDC on the
center pin to power the GPS antenna,