Geoffrey Mackenzie-Kennedy wrote:
Paul,
When using a SGC-230 to feed two wire open wire line I understand
that one side of the feeder is connected to the SGC-230's ground terminal.
That is correct.
It's the lower wire of the window line in this picture:
www.N4LCD.com/SGC-230_700x525.jpg
My doublet ladder line feeds straight into the K3 without external
tuner. Why use another box?
David
G3UNA
Because I already had the SGC-230 mounted outside.
And my K3 was ordered with no tuner because I already had the SGC-230.
(The Cobra Ultralite needs a tuner.)
Paul N4LCD
Just
My doublet ladder line feeds straight into the K3 without external tuner. Why
use another box?
David
G3UNA
From: [EMAIL PROTECTED]
Date: 2008/07/09 Wed PM 09:12:34 BST
To: elecraft@mailman.qth.net
Subject: Re: [Elecraft] BL2 Balun Heating
Just passing along some information
Just passing along some information that might be of interest.
I have the K3 with the auto tuner built in. My antenna is a Cobra Ultralite
fed with ladder line. I can switch between a Johnson Matchbox and a BL2
balun/KAT3 to feed the antenna. I previously had adjusted the feedline
length so
Just passing along some information that might be of interest.
I have the K3 with the auto tuner built in. My antenna is a Cobra Ultralite
fed with ladder line. I can switch between a Johnson Matchbox and a BL2
balun/KAT3 to feed the antenna. I previously had adjusted the feedline
length so
Tnx, John!
An exercise that I've yet to find the time to do is to put the balun (or
external tuner) inside a well insulated enclosure and then measure the
temperature rise. (Something like a tightly closed Styrofoam box.) It's
possible to get a good idea of how many watts of dissipation are
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