Towertalk
[Top] [All Lists]

Re: [TowerTalk] Terrain Modeling (was choke on vertical dipole)

To: towertalk@contesting.com
Subject: Re: [TowerTalk] Terrain Modeling (was choke on vertical dipole)
From: Jim Brown <jim@audiosystemsgroup.com>
Reply-to: jim@audiosystemsgroup.com
Date: Thu, 15 Jan 2026 13:57:04 -0800
List-post: <mailto:towertalk@contesting.com>
If used extensively with good data, will tell us the relative effectiveness of mounting heights. With that information, we can make more intelligent decisions about what to do with what our real estate, budget, and other capabilities allow.

In my case, I learned that 120 ft was near optimum for EU, my most difficult direction, that a few more tower sections were not better, and that to get better, I'd need to go to at least 300 ft! :)

I also learned that 20 ft at different location on my property was a minor sweet spot for a small 10M yagi.

I spent close to a month on it. Neighbor K6XX, 4 miles up the ridge from me, used it extensively in planning his antenna farm.

73, Jim K9YC

On 1/15/2026 11:21 AM, Wes Stewart via TowerTalk wrote:
  Speaking primarily as a ham radio DXer, constrained by county zoning limits, my take on 
terrain modeling is, "What am I going to do about it?"  Propagation prediction 
is pretty much the same question.


_______________________________________________



_______________________________________________
TowerTalk mailing list
TowerTalk@contesting.com
http://lists.contesting.com/mailman/listinfo/towertalk
<Prev in Thread] Current Thread [Next in Thread>