[Milsurplus] JTV680 Vertical antenna SO239 connector

Tue Nov 8 09:37:54 EST 2016

Well, one can be careful and prepare the cable end for the N connector or use quite a bit of heat to mate the UHF connector to the coax.  If going the latter route, you still have to do something to keep the water out of the connector which seemed to be the original problem.  Don't know if trying to waterproof the UHF will double the cost but I guess it would be pretty close considering time and cost of materials.
I don't remember ever seeing UHF connectors on equipment when I was in the Air Force.  N, HVN and BNC connectors were everywhere.  The only exception, that I remember, was the RCA connectors used on the back of the KWM-2.  I suspect Robert's experience in the Navy is similar.Jim

Assembled using the right tools, using quality cable and connectors, N is fast and secure. The kits I get have sealant shrink tubing which protects from weather and gives extra strain relief. 
That said, UHF is completely fine for HF and is a quite robust connector if installed right.  However, I have seen very few amateur installed connectors made up properly. 

Peter
On Nov 8, 2016, at 7:29 AM, Jim Degenhart <kf9xk at mtco.com> wrote:

I will go with Robert on this one. Assembly of N connector is precise. It is a good connector if you worry about the minor difference between UHF and N,BNC etc. Put together sloppily You throw it away and start over. Cost is a major difference. N will cast you twice as much as PL 250. 
  As for the foreign market. PL259/SO239. TNC,MINI U, SMA. Both male/female. And the N connector is most common on antenna bases. 
  Jim KF9XK

 On 11/8/2016 2:05 AM, WA5CAB--- via Milsurplus wrote:

The problem with the Type N (and C and BNC) is that unless you use either the crimp type or the shipboard armored type, they are sorta fragile.  And although impedance wise they are flatter than the UHF, I would take exception at least at HF to saying that they are "much" better.

 In a message dated 11/08/2016 00:34:21 AM Central Standard Time, antqradio at sbcglobal.net writes: 

John
 Why not replace the SO-239 with an N connector?  At least these have a gasket to keep water out and are a much better connector.  

 I wonder, is the American market the only one that still uses the "UHF" connector?  What connectors are used on European and Japanese marketed equipment?
 Jim

 Robert & Susan Downs - Houston
 wa5cab dot com (Web Store)
 MVPA 9480 

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