On 10/26/2013 1:56 PM, steve jobes wrote:
Rick I disagree with your statement. As a owner of a Tennadyne T-10 and
currently a T-12 your statement is flat out wrong. I swept my T-12 with my rig
expert AA-230 analyzer and it was below 2-1 across the 13-30 mhz. range. Not
sure what you are talking about, OR WHAT BRAND. But to say mediocre SWR is a
false statement.
When I had a Tokyo Hy power 1.5 Kfx, the power was rolling back by as
soon as the SWR started to climb above 1:1. by 1.3:1 it was down over a
100 watts. At 2:1 it would have been down by 300 or more IIRC. I would
run a tuner on anything over 1.3:1.
My Quadra doesn't appear to be any more tolerant. Unfortunately the
Quadra is now ailing.
When I used tube gear, 3:1 was tollerable
73
Roger
73,
Steve W1DXH
-----Original Message-----
From: Richard (Rick) Karlquist <richard@karlquist.com>
To: towertalk <towertalk@contesting.com>
Sent: Fri, Oct 25, 2013 7:25 pm
Subject: Re: [TowerTalk] Tower and antenna decisions
I briefly looked at log periodics and one thing
that hasn't been discussed here is the mediocre
SWR of LPDA's. You're pretty much going to have
to use a tuner, and you also have increased feedline
loss. Might work for some users, but I'm sticking
with my SteppIR antennas (3 of them so far).
An LPDA would however, make a good broadband receive
antenna for a skimmer, if you want to optimize
one direction.
Rick N6RK
_______________________________________________
_______________________________________________
TowerTalk mailing list
TowerTalk@contesting.com
http://lists.contesting.com/mailman/listinfo/towertalk
_______________________________________________
_______________________________________________
TowerTalk mailing list
TowerTalk@contesting.com
http://lists.contesting.com/mailman/listinfo/towertalk
_______________________________________________
_______________________________________________
TowerTalk mailing list
TowerTalk@contesting.com
http://lists.contesting.com/mailman/listinfo/towertalk
|