[Lowfer] Loop Report

Wed, 30 Oct 2002 18:11:51 -0600

Well Guys,
I reduced the number of turns to 3 on each side of ground and the signal
came up several DB and the noise went down.
I am on the right track, I could live with it like this, but I want to do
better. Tomorrow is another day.
Thanks for  the help, I couldn't have made it without you all.
Lewis
God Bless America
----- Original Message -----
From: "Mitch Powell" <[email protected]>
To: <[email protected]>
Sent: Wednesday, October 30, 2002 03:47 PM
Subject: Re: [Lowfer] 8 ft Square Loop


>
> > I used 40 turns center taped to ground on the loop side, and 20 turns to
> > coax back to the shack. I earth grounded the shield.
>
> Lewis:
> I have tried the same thing - the impedance of the single turn loop is
> verrrrry low..... I would suggest you reduce the loop side of the toroid
to
> 2-3 turns centre tapped..... leave the secondary as is for now.
> You don't mention a preamp out at the loop ?  Assuming this is the case,
you
> probably would need something inside to give a bit of gain.
> I am using Lyle's "universal" preamp inside when I don't have a preamp
> mounted on the external antenna.
> Without knowing the permeability of the toroid - this is cut-n-try, but it
> should help.
>
> Mitch
>
> _______________________________________________
> >From the Lowfer mailing list
> Send messages to: [email protected]
> To sub/unsub visit: http://mailman.qth.net/mailman/listinfo/lowfer
>