[ARC5] QST articles.

[Bob Macklin]

Just how does the rotary inductor cancel of the inductance of the link
coupling?

That's 2 inductors in series. They add!

Bob Macklin
K5MYJ
Kent (Seattle), Wa,
"Real Radios Glow in the Dark"

----- Original Message ----- 
From: "Ian Wilson" <ianmwilson73 at gmail.com>
To: "Bob Macklin" <macklinbob at msn.com>
Cc: <kgordon2006 at verizon.net>; <ARC5 at mailman.qth.net>
Sent: Sunday, December 14, 2008 3:37 PM
Subject: Re: [ARC5] QST articles.


> Not if you want any decent power output. You need to transform the
> real part of the antenna down to a few ohm to match the optimum
> load that the ARC-5 TX wants to see.
>
> The best way to do this on 40m I have found is to use a parallel
> capacitor of around 1200pF. The rotary inductor is still used - to
> cancel out the inductance of the link winding.
>
> 73, ian K3IMW
>
> >
> > If you want to connect an ARC-5 transmitter to a 50 or 75 ohm resonant
> > antenna you can just move rotary inductor to the minimum inductance.
> >
> > Bob Macklin
> > K5MYJ
> > Kent (Seattle), Wa,
> > "Real Radios Glow in the Dark"
> >
>