[Elecraft] K3 - Numeric SWR Display

[Charles Morrison]

Since I don't plan on hanging off the side of the tower to operate my
station, isn't it more prudent to tune the entire "system", flaws, feedline
and all if my main concern is what SWR my equipment, in my shack, sees?

Charlie
KI5XP

> -----Original Message-----
> From: elecraft-bounces at mailman.qth.net [mailto:elecraft-
> bounces at mailman.qth.net] On Behalf Of Jessie Oberreuter
> Sent: Thursday, September 18, 2008 1:42 AM
> To: Bill W5WVO
> Cc: LIST - elecraft; Cranz Nichols
> Subject: Re: [Elecraft] K3 - Numeric SWR Display
> 
> 
> 
> On Wed, 17 Sep 2008, Bill W5WVO wrote:
> 
> > Actually, looking at transmission line SWR at the transmitter is a
> > poor way to adjust an antenna. To get it right, you need to use a
> > complex impedance analyzer like the now-ubiquitous MFJ-259B (or
> > equivalant instrument), and put it as close to the antenna
> > feedpoint as possible. Adjust as close as you can get for Xc=0,
> > Xl=0, R=50. You can't do that with an SWR bridge! :-)
> 
>       Alternately, feeding through one or more half-waves of coax will
give
> you good accuracy while letting you get far enough away from the antenna
> to not affect the measurement.
> 
> 
> 
> _______________________________________________
> Elecraft mailing list
> Post to: Elecraft at mailman.qth.net
> You must be a subscriber to post to the list.
> Subscriber Info (Addr. Change, sub, unsub etc.):
>  http://mailman.qth.net/mailman/listinfo/elecraft
> 
> Help: http://mailman.qth.net/subscribers.htm
> Elecraft web page: http://www.elecraft.com