[ARC5] LM series

[John Franke]

I have used a BC-221 on the low frequency range as a simple receiver to 
monitor two low frequency beacons.  I was just confirming the presence of 
the signals and the data rate before building a DGPS receiver.  I did add a 
tuned RF preamplifier (actually, a DU-1 loop antenna/preamplifier) to 
prevent or at least reduce radiation of any unwanted signals.

John  WA4WDL

----- Original Message ----- 
From: <jcoward5452 at aol.com>
To: <Jim.Falls at conservation.ca.gov>; <ARC5 at mailman.qth.net>
Sent: Monday, November 05, 2007 6:58 PM
Subject: Re: [ARC5] LM series
...

...
>  You can hook up your long wire to the antenna terminal and listen to all 
> sorts of stuff too.
>
> -----Original Message-----
> From: Falls, Jim <Jim.Falls at conservation.ca.gov>
> To: ARC5 at mailman.qth.net
> Sent: Mon, 5 Nov 2007 11:31 am
> Subject: [ARC5] LM series
>  I have an LM-13 that has a small hatch in the carrying case looking like
> the operator could use either battery or external source when the
> batteries conked out without removing it from the case:
>
> open hatch with fat screwdriver/dime,
>
> pull internal battery plug,
>
> insert external battery plug.
> >
> When casually cruising the AM bands with my TCS, I zero-beat the
> frequency I'm interested in, then zero beat the TX, tune it up, and I'm
> ready to roll. I read the frequency out of the cal book for use in the
> QSL card later.
>
> Jim Falls
>
> KG6FWT
>
> Eureka, CA
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