On 2013-09-02, at 1:37 PM, Greg - ZL3IX wrote:
> Does anyone have Jack's e-mail address - it's not on QRZ? I'm sure he
> answered my CQ last night, but didn't come back when I replied. Just
> wondering if he lost me or had a rig problem.
>
> If Jack doesn't want his contact details to be know
-Original Message-
From: Charlie Cunningham [mailto:charlie-cunning...@nc.rr.com]
Sent: Monday, September 02, 2013 7:21 PM
To: 'he...@vitelcom.net'
Subject: RE: Topband: Nested Loops with one feedline results
Hi, Herb
Well, the quad was built in "delta" fashion, and I just brought all
-Original Message-
From: Charlie Cunningham [mailto:charlie-cunning...@nc.rr.com]
Sent: Monday, September 02, 2013 6:48 PM
To: 'he...@vitelcom.net'; 'TopBand List'
Subject: RE: Topband: Nested Loops with one feedline results
Hi, Herb
Something you might consider is feeding the paralle
H I, Herb
Well, I expect that your 80/160 delta loop can be made to play well. Do you
use EZNEC? It's heck of a lot easier to deal with the interactions with a
keyboard and mouse than raising and lowering and pruning the loops! :-)
73,
Charlie, K4OTV
-Original Message-
From: Topband [
The 18/24 is not a good analogy, because those bands
are not octave spaced. My modelling indicated that
you need to open up the lower frequency antenna at
two places, 180 degrees opposed, in order for it not
to affect the higher frequency antenna. Also, the
openings should be such that the remai
Thanks Rick, I presume a true quad loop would bring different results
with a common feed. I have heard of a single feedline working well with
a 5 band quad so I presume that a triangular "Delta Loop" has a
completely different relationship?
Herb, KV4FZ
On 9/2/2013 6:34 PM, Richard (Rick)
Hi, Herb
Something you might consider is feeding the paralleled loops via a 4:1
current balun. I used this very successfully on a 2 el 5-band quad (my own
design) fed with RG-213 through a 4:1 current balun. Net result was that,
while the VSWR wasn't 1:1 anywhere, it was below 1.6:1 across all 5-
The 18/24 is not a good analogy, because those bands
are not octave spaced. My modelling indicated that
you need to open up the lower frequency antenna at
two places, 180 degrees opposed, in order for it not
to affect the higher frequency antenna. Also, the
openings should be such that the remai
Several replies to my inquiry on having a closed 80 meter inverted delta
loop inside a 160 meter delta loop brought me some nice replies. So I
decided to build one for 18Mhz and 24Mhz with the feed going to the
outside Delta loop hoping this would properly allow dual band operation
with a sing
On 9/2/2013 1:37 PM, Greg - ZL3IX wrote:
Does anyone have Jack's e-mail address - it's not on QRZ? I'm sure he
answered my CQ last night, but didn't come back when I replied. Just
wondering if he lost me or had a rig problem.
If Jack doesn't want his contact details to be known, yet someone
Does anyone have Jack's e-mail address - it's not on QRZ? I'm sure he
answered my CQ last night, but didn't come back when I replied. Just
wondering if he lost me or had a rig problem.
If Jack doesn't want his contact details to be known, yet someone knows
how to get hold of him, please pass
Jim,
My experience with the 18 meter poles is that they survive 2-3 winter seasons
here. I have been using the Spiderbeam mast to make a top loaded vertical
guying it at three levels. What happens is that the pole flexes in the winter
storms and the material weakens with time. As the pole is ve
Would like to hear from anyone with experience using MA 8040v or MA 160v
Thanks
Trent
N4DTF
trentfleming.com
_
Topband Reflector
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