Topband: T Top Verticals and yagis

[Ed Sawyer]

Mike and others.  All you have to do is model it to see the result.  The more horizontal component of an L, the lower the max gain of the low angle vertical portion.  If you counter that with worse and worse ground losses, absorbing the low angle vertical radiation, you can make the numbers do whatever you want.  That’s the only way I can see to get to the described data that K2AV is describing.  The fact that it is all sitting on a tiny FCP ground system on his link speaks volumes as to why his data looks like it does.  But it is not comparable certainly to my system nor many others.

 

73

 

Ed  N1UR

 

From: Mike Waters [mailto:mikewate at gmail.com] 
Sent: Saturday, February 29, 2020 3:10 PM
To: Ed Sawyer
Cc: Guy Olinger K2AV; topband
Subject: Re: Topband: T Top Verticals and yagis

 

Hi Ed,

 

I can appreciate your line of thinking. However, I am 99% certain that he --and others-- published what he said here well before he came up with his FCP design. Also, other technical gurus here have long stated the same thing.

 

Also, his original site crashed, and I don't believe the FCP stuff was there until later. But that's a moot point.

 

I don't use an FCP, since I have room for elevated resonant radials here. But it's a great compromise for those on postage-stamp size city lots. :-)

 

I just saw your other message as I was typing this reply. You have a higher degree than I have. Perhaps others will comment on this. I hope so.

 

73, Mike

W0BTU 

 

 

On Sat, Feb 29, 2020, 1:58 PM Ed Sawyer <sawyered at earthlink.net> wrote:

No attack intended.  But his website is titled Folded Counter Poise.  And that compromise ground system has a lot to do with his data.  I don’t have a folded counterpoise under my 160M Ts.  ON4UN’s book is far more instructive generically about a T vs an inverted L under efficient ground systems.  You might look to read it.