My Yaesu Mark 5 would begin to roll back its power output over about
1.8:1. What really bugs me about LPDA's is the terrible tradeoff
between weight and size and gain/directivity at any given frequency.
73, Pete N4ZR
Check out the Reverse Beacon Network at
http://reversebeacon.net,
blog at reversebeacon.blogspot.com.
For spots, please go to your favorite
ARC V6 or VE7CC DX cluster node.
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.
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
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