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Re: [IRCA] KAZ versus Pennant/Flag

KAZ:  Included in my voluminous measurements this summer was a set of data taken with various height-extensions of the null-side support pole.  I got this idea from the way some AM Directional-Antenna systems are designed with un-equal tower heights.

 

Can you run a few EZNECs assuming a front pole height of 22 feet with a few different âbackâ-pole heights?  We may discover that identical-apex is the best solution.  

 

On the other handâ

 

 

Cheers!

 

Mark Durenberger

 

 

-----Original Message-----
From: IRCA <irca-bounces@xxxxxxxxxxxxxxxx> On Behalf Of Neil Kazaross
Sent: Wednesday, October 24, 2018 2:03 PM
To: irca@xxxxxxxxxxxxxxxx
Subject: Re: [IRCA] KAZ versus Pennant/Flag

 

The Double Loop genre of antennas models to have better back end nulling performance at relevant higher angles (ie rather short skip) than do the single loops. This is because a double loop is nearly electrically the same as an end fire array of two single loops.

 

73 KAZ

 

On Wed, Oct 24, 2018 at 1:27 PM Mark Pettifor < <mailto:mark@xxxxxxxxxxxxxx> mark@xxxxxxxxxxxxxx> wrote:

 

> Well here's something that's been on my mind lately, regarding 

> differences between superloops and the DKAZ:

> 

> It seems to be my experience so far that at night, the back and side 

> nulling characteristics of these antennas changes, due to sky wave vs.

> ground wave, yes? Which one is more affected by those changes?

> 

> Mark

> Goshen, IN

> 

> On 2018-10-24 1:42 pm, Chuck Hutton wrote:

> > Mark -

> >

> >

> > No arrogance detected here.

> >

> > Now back to the issue of DKAZ low band performance...â

> >

> >

> > Chuck

> >

> >

> > ________________________________

> > From: IRCA < <mailto:irca-bounces@xxxxxxxxxxxxxxxx> irca-bounces@xxxxxxxxxxxxxxxx> on behalf of Mark 

> > Pettifor < <mailto:mark@xxxxxxxxxxxxxx> mark@xxxxxxxxxxxxxx>

> > Sent: Wednesday, October 24, 2018 8:58 AM

> > To: Mailing list for the International Radio Club of America

> > Subject: Re: [IRCA] KAZ versus Pennant/Flag

> >

> >

> > Apologies, Chuck, and to the rest here. In looking back at my post, 

> > I realize I could have said things a lot less arrogantly and put-offish.

> > That's how I sounded to myself anyway after re-reading what I posted.

> >

> > 73,

> > Mark

> >

> > On 2018-10-24 1:57 am, Chuck Hutton wrote:

> >> Mark -

> >>

> >>

> >> I suppose we all agree that the DKAZ has nailed some great catches.

> >>

> >> My goal was to point out a shortcoming, not to say that it can't 

> >> hear DX a la Colombia / Venezuela / Nicaragua.

> >>

> >>

> >> Chuck

> >>

> >>

> >> ________________________________

> >>

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