Help me identify this connection?

[di1uted]

I picked up a Harris 10369-0205 antenna to play with thinking it was a TNC or connection but turns out I was wrong. Anyone know what the cable for this is called or what type of connection it is? At first I was thinking type N but that doesn't look right either.

 

[prcguy]

Its a connector commonly found on military VHF/UHF manpacks and it consists of a BNC female connector with a shroud that takes the stress off the BNC.

Good luck finding a mating connector, I have been looking for them for probably 20yrs and recently found one on Ebay for $10 and don't expect to see any more. I have 5 or 6 of the antennas you have but also have the radios they fit.
prcguy

I picked up a Harris 10369-0205 antenna to play with thinking it was a TNC or connection but turns out I was wrong. Anyone know what the cable for this is called or what type of connection it is? At first I was thinking type N but that doesn't look right either.

 

[KC8ESL]

That is an NMO UHF connection. Any Larsen NMO mount has the option to make that work by pulling off the copper plate. I have 2 installed on my car and they cost $22 each from Amateur Electronic Supply.

 

[prcguy]

Its not an NMO UHF or anything related, its a custom shrouded BNC connector designed for mil radio antennas and does not exist in the commercial world.
prcguy

That is an NMO UHF connection. Any Larsen NMO mount has the option to make that work by pulling off the copper plate. I have 2 installed on my car and they cost $22 each from Amateur Electronic Supply.

 

[prcguy]

Here is the mating connector to the OPs antenna. This is probably the only one that exists on a magnet mount. Not related to NMO in any way.
prcguy

 

[KC8ESL]

So, I don't understand how it can be both bayonet(quarter turn) AND screw type(multi turn)?

That really looks like the UHF NMO connector. I don't doubt you, it looks easily mistaken though.

 

[WayneH]

It looks like the female side is meant to do double-duty. Prcguy, can you fit a standard male BNC in there?

 

[prcguy]

The mount does double duty where radio mounted antennas have the large threads and center pin with or sometimes without the internal BNC ground fingers but no bayonet and the antenna simply screws on.

The BNC is a standard type and used for connecting a cable to the antenna connector and with some types of male BNC its a little tough to tighten the connector due to the threaded shroud getting in the way.

I am aware of at least two different sizes of these connectors where one is standard for 30-90MHz antennas on SINCGARS radios shown in my last post and a slightly smaller version for the 100 to 512MHz antennas similar to the OPs. There may be a third size used an older military UHF radios.
prcguy