I am not sure why people responded privately on this topic. But here is my
reply:
All methods can be used. The "hard phase reversal" with equal lengths of
coax works (in my experience) however it makes the DC component "shorted"
and can mess up switching options. The properly cut 180 deg
Thanks for pointing that out. However, I didn't intend to word it the way I
did, implying that it was terrible because of its low gain.
73, Mike
www.w0btu.com
On Wed, Aug 1, 2018, 4:13 PM Carl Luetzelschwab
wrote:
>
> Note that the KK5JY antenna is a single loop, not a double loop as G3UNA
>
Joe,
> However, the Waller Flag is a dual loop that trades off signal for
> pattern.
I agree. But I believe it's gain is very low mostly because it's made up of
electrically very small loops.
A very small loop has its main lobes in the plane of the loop - not
perpendicular to the plane of the
Does the article referenced then not go on to describe a phased array
of two LoG's (Figure 7)?
Nick
VE7DXR
At 21:24 2018-08-01, Joe Subich, W4TV wrote:
On 2018-08-01 5:13 PM, Carl Luetzelschwab wrote:
That gain value is in the neighborhood of what a Waller Flag does.
However, the Waller
On 2018-08-01 5:13 PM, Carl Luetzelschwab wrote:
That gain value is in the neighborhood of what a Waller Flag does.
However, the Waller Flag is a dual loop that trades off signal for
pattern. The LOG simply throws away signal due to attenuation of
the dirt.
The LOG is a horizontally
Note that the KK5JY antenna is a single loop, not a double loop as G3UNA
referenced.
> That's a terrible RX antenna. Did you see the losses?!
> Minus-forty-something dB on 160.
That gain value is in the neighborhood of what a Waller Flag does.
Carl K9LA
_
Topband Reflector
Isn't a waller flag in the minus 50's?
On 8/1/2018 2:15 PM, Mike Waters wrote:
That's a terrible RX antenna. Did you see the losses?!
Minus-forty-something dB on 160.
73, Mike
www.w0btu.com
On Wed, Aug 1, 2018, 3:00 PM Nick Hall-Patch wrote:
DuckDuckGo brought up this at the top of its
Mike -
After many experiments, what I came to understand is that a loop is a loop is a
loop. They're all variations on a theme. Ground dependent vs independent.
Elevation. Size vs capture area. Need for a pre-amp or not. Nearby structures
and antennas. The degrees of freedom are many. Some are
Mike -
After many experiments, what I came to understand is that a loop is a loop is a
loop. They're all variations on a theme. Ground dependent vs independent.
Elevation. Size vs capture area. Need for a pre-amp or not. Nearby structures
and antennas. The degrees of freedom are many. Some are
That's a terrible RX antenna. Did you see the losses?!
Minus-forty-something dB on 160.
73, Mike
www.w0btu.com
On Wed, Aug 1, 2018, 3:00 PM Nick Hall-Patch wrote:
> DuckDuckGo brought up this at the top of its search:
> http://kk5jy.net/LoG/
>
> Presumably that is what you mean?
>
> best
DuckDuckGo brought up this at the top of its search: http://kk5jy.net/LoG/
Presumably that is what you mean?
best wishes,
Nick
VE7DXR
At 19:04 2018-08-01, CUTTER DAVID via Topband wrote:
Drifting the thread slightly: I read an article recently regarding 2
loops of 15ft square separated by
Drifting the thread slightly: I read an article recently regarding 2 loops of
15ft square separated by 15ft which the author called Loop On Ground, LOG. He
claimed good results on receive over a period of a year. It was very low gain
but had directional properties and was said to be quiet.
Thanks!
I think I will still try to build the vertical version to try.
On 8/1/2018 10:15 AM, donov...@starpower.net wrote:
Hi Mike,
A horizontally polarized loop -- or any other horizontally polarized
160 meter antenna -- has extremely poor sensitivity when installed
less than about 0.1
Hi Mike,
A horizontally polarized loop -- or any other horizontally polarized
160 meter antenna -- has extremely poor sensitivity when installed
less than about 0.1 wavelenght above the ground. Even if you raise
a horizontally polarized loop to about 0.1 wavelength (50 feet on 160
meters)
Has anyone tried a loop like this in the Horizontal plane? I suppose
if one had an AZ mount they could try it from horizontal to Vertical.
His flag build was in the July 2015 QST.
W0MU
_
Topband Reflector Archives - http://www.contesting.com/_topband
15 matches
Mail list logo
