[Lowfer] Loop Practice ?

[John Andrews]

Peter, Bill,

I have a 7-turn tap on my 14-turn loop (6' square), and have used it 
before with no strange results. But Bill makes a very good point. If the 
time and weather permit tonight, I'll try to measure the depth of a null 
both ways. Will probably have to do it with an aero beacon down in the 
200-300 kHz range. Stay tuned...

John A.

Peter Barick wrote:
> Hey Bill, Group,
> 
> Understand, it was just a thought as on prior loops I had to remove turns having over wound them. On this one there are not a lot of turns to begin with for 600M, say, 7 turns (41 feet Cir.) and mica caps as needed.
> Peter
> ----------------------------------
>>>> Bill Ashlock <ashlockw at hotmail.com> 07/28/08 2:06 PM >>>
> 
> Hi Peter,
>  
> I'm thinking that there might be problems in the loop balance when one has unterminated turns, and this could cause an unwanted sensitivity to the E-field of the received signal - hence a poor null. An unshielded loop has to be ballanced, capacity-wise, to its surroundings - and this is critical. Perhaps others have tried this and could comment.
> 
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