UHF Aerials

Your GME head unit will need one of these

A standard UHF PL259 plug

If you get one of those antenna's it will come with the required connector for your radio.

Some Radios will come with a SO259 Socket and others an FME socket - that caught me out when I changed my Icom for the GME XRS390C which has an FME Socket

FME connectors are easy to pass through the firewall given their small size but you need to be careful not to put too much pressure on the connector when pulling through.

PL259 are easier to pass the cable through and then solder the connector on

I put a dab of nail polish on the connectors once nipped up (not overtightened) so they don't work loose easily.

cheers

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Probbaly bit late with response -ten years exp in commercial short term hire and project with WA Police number years ago.

Majority of UHF CB radios will use a PL259 screw on plug.

However GME at one stage had their coax cable unterminated and trust me they need to be terminated properly.

You can imagine how I choked on cornflakes when a mechanic said to myself and the senior technician, we used pair of broad pliers to crimp the connector on and they wondered why they had bad radio comms (commercial freq and power output 25 w )

To allow easy install some antennas manufacturers (GME for one now use a smaller FME connector as used on a mobile phone coax cable connector and then use a interseries adaptoer to screw onto back of the radio.

Bit of clear nail polish will assist in holding the threads together but only apply to threaed parts nothing else. - used this on a diplexer after tuning it to frequency so they didn't self adjust with vibrations in transit

Some high tier radios - ie dumbed down power wise radios may have a different connector fitted BNC in particular. -this looks similar to a bayonet globe fitting