[FoxHunt] Old Homing In Article
Charles Suprin
hamaa1vs at gmail.com
Mon Mar 8 20:56:43 EST 2010
Bob,
On that page he cites the article as an explanation of the need for
biasing both ends.
Charles
On 3/8/2010 3:30 PM, R. Simmons wrote:
> It appears the article is on his website :
>
> http://www.homingin.com/newdopant.html
>
> He claims 20-30% BW but really it is much greater. ( if you disregard loss
> of RF sensitivity ) The PicoDopp MiniAntenna "design" frequency is around 1
> GHz, but I have used it at 146 MHz, others have used it even lower. ( but a
> fairly strong signal is required to compensate for small antenna size )
> That = several octaves of span.
>
> Bob S.
>
>
> -----Original Message-----
> From: foxhunt-bounces at mailman.qth.net
> [mailto:foxhunt-bounces at mailman.qth.net] On Behalf Of Charles Suprin
> Sent: Monday, March 08, 2010 11:11 AM
> To: foxhunt at mailman.qth.net
> Subject: [FoxHunt] Old Homing In Article
>
> Hello Foxes and Hunters,
>
> I am looking for a copy of the Homing In article from April 1995. It
> contains information on design decisions for k0ov's new Roanoake
> antenna system. Joe points the user to it at
> <http://homingin.com/newdopant.html> and Bob Simmons ( WB6EYV )
> alludes to the content at
> <http://www.silcom.com/~pelican2/PicoDopp/PICO_MORE.html>. It appears
> to deal with the need for maintaining the impedance at the antenna's
> for repeatable performance.
>
> Any insight would be appreciated.
>
> Charles
> AA1VS
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