Kevin
I use DPDT relays here to switch my 450 ohm feedlines.
Works very well.
73, Bob N6WG
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] Behalf Of Kevin Rock
Sent: Monday, July 18, 2005 5:03 PM
To: Elecraft; [EMAIL PROTECTED]
Subject: [Elecraft] A/B antenna switch
I have a fancy switch for A/B antenna testing for coaxially fed antennas
but do not know what folks use for antenna switches with antennas fed by
ladder lines. I want to compare a 160 meter full wave loop fed with
homebrew ladder line to a G5RV fed by 450 window line. Any suggestions?
I
Kevin, KD5ONS wrote:
I have a fancy switch for A/B antenna testing for coaxially fed antennas
but do not know what folks use for antenna switches with antennas fed by
ladder lines. I want to compare a 160 meter full wave loop fed with
homebrew ladder line to a G5RV fed by 450 window line. Any
Kevin,
If you have a KAT2 or a KAT100, that switch is built in. Connect each
feedline to a 1:1 current balun and a short piece of coax to the tuner -
Pre-tune each antenna before your comparison, and the ANT 1/2 button will
switch them for you.
73,
Don W3FPR
-Original Message-
I
Thank you for the fine suggestions and nice photos.
John, W2AGN, you and my father would have enjoyed each other's hand built
cases. He crafted one for each of his hobbies. He was trained as a
cabinet maker by my great grandfather.
It looks like I will take bits from each idea and use a
On Jul 18, 2005, at 6:35 PM, Kevin Rock wrote:
I am unsure where I can find a knife switch but I do like the idea
of the barrier strips.
It's not a great one, but Radio Shack #275-1537 costs $2.99 and will
do the trick.
- Jack Brindle, W6FB
I have thought of pairing up a 4-position Alpha-Delta coax switch back-to-back,
but time and expense have prevented it. I have also thought through a few
schematics to do it remotely to my attic with relays. But here's a simple
homebrew one (http://www.io.com/~n5fc/ant_sw.htm) I found at N5ESE's
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