[TowerTalk] PL-259's

[jeremy-ca]

----- Original Message ----- 
From: "Steve Katz" <stevek at jmr.com>
To: <K2EK at aol.com>; <towertalk at contesting.com>
Sent: Wednesday, October 10, 2007 7:08 PM
Subject: Re: [TowerTalk] PL-259's


> >...whereas the
> "recommended" installation per the Amphenol book is good to at least 300
> MHz, and most are quite good even to 440 MHz.
>
>
>
> Doesn't everyone switch over to N connectors above 2M   Somehow using a
> PL259
> on UHF seems sacrilegious.
>
> de Bill
> K2EK<
>
> ::Actually, *good* PL-259s, properly installed (with the outer conductor
> terminating well inside the connector, right up against the plug 
> dielectric
> insulation at the pin), are easily good to 70cm with no measurable loss 
> and
> they can handle more current (thus, higher power) than type Ns can.  Like
> with most coaxial connectors, the weak link is the female, not the male.
> Oh, I might say that about my marriage also, but I'll bite my tongue.
> -WB2WIK/6


Several published tests show a good PL-259 coming to almost a perfect 50 
Ohms at 222 MHz but exhibiting a bit under 2:1 at 432. While that VSWR wont 
bother a FM wanker or scanner its not good at QRO or for that weak signal 
receiver noise figure.

Even the best SO-239 will fry at a 600W on 432, I proved it! Ive also blown 
them at 1500W on 144.

Carl
KM1H


>
>
>
> ************************************** See what's new at 
> http://www.aol.com
> _______________________________________________
>
>
>
> _______________________________________________
> TowerTalk mailing list
> TowerTalk at contesting.com
> http://lists.contesting.com/mailman/listinfo/towertalk
> _______________________________________________
>
>
>
> _______________________________________________
> TowerTalk mailing list
> TowerTalk at contesting.com
> http://lists.contesting.com/mailman/listinfo/towertalk
>