Topband: FW: Hi-Z Around Trees

[John Harden, D.M.D.]

I have a Hi-Z 4-8 PRO down the hill in a flood plain by the creek. I had 
the area bush-hogged out but there are trees everywhere. It works great 
and is in the smaller circle configuration with an 85 ft diameter spacing..

It compares with my Waller Flag up the hill on a 45G 100 ft Tower at 95 
feet though the FLAG is a better long haul antenna with its horizontal 
polarization.
The flag has a 40 foot boom and is fed with with 100 ohm Twinax to the 
transformer at the tower base. From there I run LMR-600 to the shack 
where I have the stellar N4IS pre-amplifier with 40 dB of amplification. 
The FLAG is turned with a TIC Ring Rotor.

It's good to have both...

K1ZM states in his 160 book that it's best to have as many RX antennas 
as possible.

73,

John, W4NU
Atlanta, GA


On 11/14/2016 5:21 PM, Jeff AC0C wrote:
> Sorry to hear that.  But to avoid confusion for the guy asking about 
> the trees case, we should be crystal clear that houses (which are 
> filled with metal stuff) and antennas (made of usually resonant + 
> metal stuff) are in a *completely different category* than a minimally 
> interacting thing like a tree, especially when it's several feet from 
> the antenna.
>
> 73/jeff/ac0c
> www.ac0c.com
> alpha-charlie-zero-charlie
>
> -----Original Message----- From: Joe Galicic
> Sent: Monday, November 14, 2016 3:54 PM
> To: Paul at PaulFerguson.us ; topband at contesting.com
> Cc: k7tjr at msn.com
> Subject: Re: Topband: FW: Hi-Z Around Trees
>
> I could never get my hiz 2-3 (3 element,4 directions) working on my 
> small quarter acre lot.  Too close to trees, houses and antennas.  
> Worked with
> Lee for a long time trying.  No luck.  N3HEE
>
>
> Sent from XFINITY Connect Mobile App
>
> -----Original Message-----
>
> From: Paul at PaulFerguson.us
> To: topband at contesting.com
> Cc: k7tjr at msn.com
> Sent: 2016-11-14 9:49:58 AM
> Subject: Re: Topband: FW: Hi-Z Around Trees
>
> Lee,
>
> Thanks for the guidance.
>
> I plan to use 20-foot fiberglass tube with a wire down the center for
> Hi-Z array elements. Would you expect sensitivity to nearby trees to be
> about the same for these wire elements versus aluminum tube elements.
>
> 73,
> Paul
> K5ESW
>
>
>>
>>
>>   Greetings Top-Banders, I have been away for a couple days, sorry for
>>   the late comments.
>>     The fact is, for me there is no definitive answer to the effect of
>>     trees on the Hi-Z arrays. I have made tests measuring phase shifts
>>     and amplitude changes with a variety of objects around these
>>     elements. My original thoughts after the tests were that any tree or
>
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