[Lowfer] Re: [Lowfe Worthwhile going to Shielded loop?r]

[paulc]

Hey Bob,

I have built quite a few of the smaller loops 4 feet on a side and when you
pay attention to detail the nulls are really quite amazing.
From s-9 +20 to into the noise and the only thing left is a little skywave
signal.  Sounds a lot like a selective fade on the AM band.


----- Original Message ----- 
From: <riese-k3djc@juno.com>
To: <lowfer@mailman.qth.net>
Sent: Monday, October 27, 2003 3:49 PM
Subject: Re: [Lowfer] Re: [Lowfe Worthwhile going to Shielded loop?r]


>
> On Mon, 27 Oct 2003 14:31:31 -0500 "paulc" <paulc@snet.net> writes:
> > John,
> >
> > Thanks for lending your experience to the query.
> > From your email
> >
> >  My only experience with shielded receiving loops has been with
> > small,
> > > multi-turn versions. There were no significant reductions in
> > noise, and
> > the
> > > extra capacitance did narrow the tuning range.
> >
>
> Paul
>
> I just got a 30 Ft in cir. shielded loop in operation
> used RG 58 coax. Used the Burhams preamp and one
> of Mitches board's . It has extremely deep notches
> and is allowing me to reduce QRM.QRN . It works
> better for me at this locationn then the AMRAD E field probe
> due to the ability to null,,,, it is non tuned
>
> On IUD the local airport at 254 Kc I can take it from 40 over to
> under the noise floor at an S5 or so. It really is working for me
> well at this QTH
>
> Bob  K3DJC
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