Topband
[Top] [All Lists]

Re: Topband: 160 RX Loops

To: rick darwicki <n6pe@yahoo.com>
Subject: Re: Topband: 160 RX Loops
From: Herbert Schoenbohm <herbs@surfvi.com>
Date: Sun, 20 Dec 2009 07:23:32 -0400
List-post: <topband@contesting.com">mailto:topband@contesting.com>

rick darwicki wrote:
> Hi all,
>
> With high local line noise, is a TUNED LOOP or non-resonant RX loop a better 
> option? 
>
> I've seen blogs that shielding a loop really doesn't do much.
>
> Comments?
>
>
>   

For a quick easy low band low noise antenna I have found that a 20 meter 
Delta Loop, corner fed, could hear well with with an in shack  pre-amp.  
Also the circumference is about right 1005/f for 20 meters that if you 
put a 950 ohm resistor in the other corner you end up with a very low 
noise K6SE type pennant which give you some nulling in the direction of 
the in line resistor.  I used to just an insulator at the opposite end 
and use two jumpers with alligator clips so I could easily switch 
between the Pennant and a 20 meter delta loop.

Try it?


Herb Schoenbohm, KV4FZ
_______________________________________________
160 meters is a serious band, it should be treated with respect. - TF4M

<Prev in Thread] Current Thread [Next in Thread>