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Re: [TowerTalk] Power limitation for N-Connectors

To: "''" <>,
Subject: Re: [TowerTalk] Power limitation for N-Connectors
From: Steve Katz <>
Date: Wed, 19 Apr 2006 10:54:16 -0700
List-post: <>
I'd say they're wrong.

Type Ns flashover at >3000V at STP, and that's a lot of voltage.  The center
pin can handle 6A continuously, probably 12A intermittently.  1500W is 5.48A
in a 50 Ohm system.  1500W is 273.9V in a 50 Ohm system.

I don't see the issue.  I've used type Ns at 1500W output power on 70cm for
eme work, and never had one fail...


-----Original Message-----
From: Ron Stordahl []
Sent: Wednesday, April 19, 2006 10:55 AM
Subject: [TowerTalk] Power limitation for N-Connectors

Setting up a vertical on 40, but about 300 feet from the shack.  Plan to 
use used 1/2 inch heliax LDF4-50A.  Someone, who might be wrong, said N 
connectors are limited to 500 watts.  That's probably at UHF/VHF 
frequencies...but got me wondering.  Actually I would prefer to use 
PL259/SO259's, but would have to round up those connectors (L44U's).

Any problems re N connectors for full power below 30 MHz?

Ron Stordahl, N5IN

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