Ok,
tnx for information, as always very helpfull . No braid breaker gives me 25 dB
F/B at 500 m (1500 ft) RX site . I use my minivna generator to have a TX
signal on my 2 el endfire array .
Next question is were to put the null on the back so I can determine the lenght
of the delayline
73
Lu
I think that idea of transformer balun or transformer unun isolation is
generally a bad idea in a phased system, and not necessary in almost any
system except very special cases.
I would generally just forget that system for a number of reasons.
Attenuation of common mode, and everyone forgets
On Sunday, June 8, 2014 5:24 AM, Jim Brown
wrote:
It DOES make sense to decouple the feedline. I've never heard of a
"braid breaker." Under NO conditions should you open the shield == that
prevents the shield from being a shield. The good ways to decouple the
feedline are 1) a good transforme
Jim,
I made a braid breaker by using a binocular core 73-202 with 2 turns primairy
and 2 turns on
secondary . The term braid breaker comes from John s latest edition of low band
DX ing
I found that it is difficult to get signal levels identical on both elements
when using it, so maybe better
On 6/7/2014 12:13 PM, luc kerkhofs via Topband wrote:
does it make sense to decouple the feedline
at the feedpoint with a braid breaker ?
It DOES make sense to decouple the feedline. I've never heard of a
"braid breaker." Under NO conditions should you open the shield == that
prevents the shi
nt: Saturday, June 7, 2014 8:23:12 PM
Subject: Re: Topband: Feedpoint of short RX vertical
hi luc
so you use a hi z rx arrya and you have matched the 7m long radials with a coil
in resonaze?
VY 73
frank
-Ursprüngliche Mitteilung-
Von: luc kerkhofs via Topband <topband@conte
When feeding short RX verticals with a coil and resistor in series, does it
make sense to decouple the feedline
at the feedpoint with a braid breaker ?>>>
There is no universal answer.
The particular installation determines whether or not decoupling is
necessary. Sometimes a ground rod alone i
3 pm
Betreff: Topband: Feedpoint of short RX vertical
Hello,
trying to improve my RX setup, I have a question .
When feeding short RX verticals with a coil and resistor in series, does it
make
sense to decouple the feedline
at the feedpoint with a braid breaker ?
73
Hello,
trying to improve my RX setup, I have a question .
When feeding short RX verticals with a coil and resistor in series, does it
make sense to decouple the feedline
at the feedpoint with a braid breaker ?
73
Luc
ON4IA
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