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Ground Mounted = Best Performance?

 
Antennas
Last Post by Mark 1 year ago
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RichPowers
 RichPowers
(@richpowers)
Posts: 2986
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Was reading through old threads and this one jumped out at me from the "temp" archives catagory....

↑

It is my understanding, and I don't foresee changing my mind, that part 15 transmission on the medium wave band using a 3-meter antenna performs best at ground level with a vertical antenna and buried ground radials.

I strongly disagree with anyone who imagines that elevating a stubby medium wave antenna has any advantage.

It's been more than a decade now that this same subject goes round and round and it will never stop.
10 years from now we'll still be hearing about elevated AM antennas and I'll be repeating this message.
In fact, I'll get a head start and repeat it right now:

It is my understanding that part 15 transmission on the medium wave band using a 3-meter antenna performs best at ground level with a vertical antenna and buried ground radials.

https://www.part15.org/community/temp/raised-transmitter-n-antenna-idea/#post-48776

I wonder who's post that had been. it was back in 2017. Anyway his conviction that ground mounted instals are the way to go is probably right, but I just like the way he said it.

I should add this was in the midst of a discussion about using wifi ggorr rreeemottyye audio to. an elevated install.


This topic was modified 1 year ago by RichPowers
 
Posted : 11/06/2025 7:38 pm
Mark
 Mark
(@mark)
Posts: 2147
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It may be right what the poster is saying but the following posts have a good argument against it. Namely vandalism, snow, not everyone wants to, or has access to, dig up the ground to bury radials. Problem is you run into problems being legal with any "elevated" ground. Timinbovey(used to be here) does quite good with it up on a tower accessible from a window if I remember and no ground. I do agree that with AM height isn't necessarily better as the long waves unlike FM bend and follow the terrain.


 
Posted : 11/06/2025 10:09 pm
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