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From: k2ors@comcast.net
To: rsgb_lf_group@blacksheep.org, rsgb_lf_group@blacksheep.org
Date: Fri, 11 May 2007 14:07:38 +0000
Message-Id: <051120071407.18043.464478AA000762990000467B22007507840B97010D0A020E06979D0E03@comcast.net>
Subject: Re: LF: 500 kHz loop antenna ?
Sender: owner-rsgb_lf_group@blacksheep.org
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Reply-To: rsgb_lf_group@blacksheep.org
Status: O


> I believe that Dave Riley, AA1A, has used a vertical loop on 505 kHz 
> with good results.

   Compared to what?

--
73 Warren K2ORS/WD2XGJ/WD2XSH/23/WE2XEB/2
FN42hi
http://www.w4dex.com/wd2xgj.htm

 -------------- Original message ----------------------
From: John Andrews <w1tag@w1tag.com>
> Rik,
> 
> Just a little interesting information... My 1159 m^2 loop shows a 
> feedpoint impedance of 1.8 +j215 ohms at 137 kHz. It measures 53 +j1060 
> ohms at 505 kHz. If the FCC ever grinds out a license for me to operate 
> on 600 meters, then the tuning network will certainly be simple!
> 
> That loop requires about 500 watts for a measured 1 watt ERP at 137 kHz. 
> It will be interesting to see how it does at 600m. Since the perimeter 
> of the loop is about a quarter wave up there, "small loop" thinking will 
> probably not apply.
> 
> I believe that Dave Riley, AA1A, has used a vertical loop on 505 kHz 
> with good results.
> 
> John Andrews, W1TAG
> 
> Rik Strobbe wrote:
> > Dear all,
> > 
> > did anyone try a loop antenna (for transmitting) on 500 kHz ?
> 
>