[TowerTalk] Feeding Guys was Loading Guy Wires

[Stan Stockton]

There wouldn’t be any difference in using the guy wires cut to resonant lengths and using the tower to hold up wire antennas in between your Mastrant or Phillystan guys.  In both cases you probably will, but may not, have an interaction with the other antennas to some degree.

I think the bigger the antenna the more difficult it is to not have a problem.

I had 8/8 on 104 foot booms for 20m using towers with steel guy wires broken up into “non resonant” lengths.  It’s one thing to make a wire not interact with a reflector, DE or Dir and yet another to not interfere with a Ref or any shorter elements through the 6th director while avoiding interactions on other bands.  

First thing noticed was signals were strong from most unwanted directions and temporarily dropping the top set to hang straight down cleaned it up.

Stan, K5GO

Sent from my iPhone

> On Sep 18, 2022, at 7:01 AM, Pete Smith N4ZR <pete.n4zr at gmail.com> wrote:
> 
> Sure, there have been such charts over the years.  My point was that making segments of guys into resonant lengths would seem like a risky endeavor for the performance of the antennas on the tower, especially given the harmonic relationship of our bands.
> 
> That said, for years I had a 4-element K3LR-style vertical array for 80M on my tower, and noticed no impact on the stacked tribanders inside the array.
> 
> 73, Pete N4ZR
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> On 9/18/2022 1:48 AM, KD7JYK DM09 wrote:
>>> Phillystran turned that into a much better antenna.  I suspect that making sections of guy resonant on one of the bands could have some unexpected effects on other antennas on the tower. Or, it might work fine.
>> 
>> I'd have to dig out some old books, but didn't the ARRL Handbook have a chart of all metallic guy lengths to avoid to prevent interactions, and resonance?
>> 
>> Like the image on the left here:
>> 
>> https://2.bp.blogspot.com/-lOK9wj3pL30/WQvMHmLNnHI/AAAAAAAACj8/fKDc1jzvZjAayfvoO7x5P-tFkb7FhsRkACLcB/s1600/arrl_vs_n2ic_guy_interactions_vs_length.png 
>> 
>> It's been nearly thirty years since I've referenced it, I use synthetic materials now.
>> 
>> Kurt
>> 
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