I fancied doing this for my screwdriver antenna but I thought I could do something similar without actually detecting polarity: simply, if I guess wrong the SWR will go the wrong way and I just have to reverse the switch; which could be done automatically. I'd like to see the article to avoid the extra step.
73 David G3UNA > > From: J F <[EMAIL PROTECTED]> > Date: 2007/03/16 Fri PM 12:02:58 GMT > To: [EMAIL PROTECTED], > Elecraft Discussion List <elecraft@mailman.qth.net> > Subject: [Elecraft] Antenna Analyser - Phase Angle Sensor > > Stuart, > > In the old Ham Radio Magazine, a 1988/89 issue there > is a very simple circuit called a PHASOMETER by the > author. It uses as zero center meter (although you > could set up LEDs to perform the same way) to > determine which side of resonance your antenna on. > > The specific purpose for this unit was for determining > which way to skew your inductor to tune your mobile > antenna. The author was going to incorporate it with > an earlier motor driven inductor. He also suggested it > as a tool for vision impaired folks. > > I thought that it would be useful for increasing > bandwidth tuning for a low band antenna. > > If you're interested, I can find the article when I am > back home sunday and make a copy. I have the article > for the mobile tuner as well. > > Cheers, > Julius > n2wn > _______________________________________________ > Elecraft mailing list > Post to: Elecraft@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 > ----------------------------------------- Email sent from www.virginmedia.com/email Virus-checked using McAfee(R) Software and scanned for spam _______________________________________________ Elecraft mailing list Post to: Elecraft@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
