Fw: [Premium-Rx] ALR 25 Loop Information

[refmon]

Hi group,

I had replied directly to Doug, but now see there may be other interested
parties.  I would provide a copy to doug, but perhaps someone can scan to
PDF and donate to web site??

regards

John Collins
______________________
----- Original Message ----- 
From: "refmon" <monitor at referencevideo.com>
To: "Doug Millar" <dougnhelen at moonlink.net>
Sent: Wednesday, May 05, 2004 8:16 PM
Subject: Re: [Premium-Rx] ALR 25 Loop Information


> Hi Doug,
>
> I've got all the info somewhere...I'll take a look for you.
>
> Meanwhile, the antenna is part of an EMI receiver package:  EMC-25.  The
> antenna feeds RF to the receiver through the BNC that is NOT marked "CAL".
> The antenna takes, and mixes in a calibrated "CAL" signal for analysis
> against received signals.  The antenna covers (working from memory) about
> 10KHz through 30MHz.  The multipin connector is for a control cable
between
> the receiver and antenna.  The receiver issues DC levels that control a
> motor inside the ALR-25 antenna so that it rotates a rotary switch that
> tunes the antenna to small ranges within the antenna coverage.
>
> I can provide the overview, theory of ops, and circuit diagram...all I
have
> to do is find it.  We're starting to get into our move, so things are in a
> bit of a turmoil.
>
> If you just connect a BNC cable between the receiver and antenna, you
should
> get reception on the passband that was last selected.
>
> Drop me a line with your phone # in case things get complicated by my
> move...I have several ALR-25's and can perform a few experiments that
might
> yield info you can use.
>
> As I recall, the circuitry in the antenna wants +/- 18VDC.
>
> keep in touch and feel free to give me a nudge if needed.
>
> regards
>
> John Collins
>
> 503 638 8625
> __________________________________
> ----- Original Message ----- 
> From: "Doug Millar" <dougnhelen at moonlink.net>
> To: <premium-rx at ml.skirrow.org>
> Sent: Monday, May 03, 2004 4:36 PM
> Subject: [Premium-Rx] ALR 25 Loop Information
>
>
> >
> >
> > Dear All,
> > Does anyone have any information about an Electro Metrics ALR 25 loop
> > antenna and how well they work? For that matter how they work....Seems
> that
> > it has two BNC connectors.
> > Doug K6JEY
> >
> >
> > _______________________________________________
> >
> > Premium-Rx Mailing List
> > To Post: premium-rx at ml.skirrow.org
> > For Info: http://ml.islandnet.com/mailman/listinfo/premium-rx
> > Visit the Website: http://kahuna.sdsu.edu/~mechtron/PremRxPage/
> >
>