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AR15.COM
8/25/2013 7:14:52 AM EDT
I have a spare 2m 5/8 wave nmo antenna sitting here. It would make a good low profile repeater antenna if I get it mounted up on my roof.

I can't seem to find a mount that will let me attach my own coax. They seem to all be for mobile installs with 17' of coax.

Any ideas?
8/25/2013 7:23:14 AM EDT
[#1]
Like this ?....

http://www.universal-radio.com/catalog/hamantm/3083.html




The Larsen BSAKIT converts your PO or NMO mobile antenna into a omni-direction base station ground plane antenna. It is for Larsen antennas operating in the range of 144 to 512 MHz. Four radials come out from the base. The feed connection is an SO-239 (UHF female). The mount comes with two hose-type adjustable clamps for connecting to a variety of masts. It is wind rated to 100 MPH. Coaxial cable is not included.


you can rig something up with a 90* NMO trunk-lip mount, but you'll need to make ground-plane radials.

8/25/2013 10:07:25 AM EDT
[#2]
Many options for base mounting of NMO antennas.  The Larsen kit pictured is typical... generally they use an SO239 barrel connector with a threaded ring and a center pin contact to adapt the SO239 into an NMO.
8/25/2013 10:07:42 AM EDT
[#3]
Thats what I was afraid of. It would be less time/money to just put my jpole back up
8/25/2013 10:18:30 AM EDT
[#4]
Here's another part that might be useful:



http://opektech.us/product/nmo-3-1-antenna-adaptor