[TowerTalk] 80 Meter Delta Loop

[David Gilbert]

Sigh ...

OK, OK, I'm sure you know that I meant field strength at low angles.

Dave AB7E


On 7/24/2024 3:19 PM, Jim Brown wrote:
> On 7/24/2024 1:32 PM, David Gilbert wrote:
>> A vertical on a slope (or cliff) means that the dirt in the far field 
>> isn't actually all there.  Air is a lot less lossy than dirt. It's 
>> the takeoff angle that gets the benefit.
>
> "Take-off angle" is a seriously flawed concept. Better to think about 
> absolute field strength in the vertical plane, as I pointed out in my 
> observations about interpreting models the compare antennas. :)
>
> One of Tom's important observations that I failed to mention in the 
> first post about it is that the drone data showed significant field 
> strength below 0 degrees elevation in the direction of the drop-off.
>
> 73, Jim K9YC
>
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