I think the point about "grounding" unused antennas is most probably to drain static in which case a resistor in the grounding line would work and not detune much.
I wonder if anybody uses chokes on their verticals as they do on broadcast stations. David G3UNA > > From: "Franki ON5ZO" <[EMAIL PROTECTED]> > Date: 2007/06/19 Tue PM 02:55:55 BST > To: <elecraft@mailman.qth.net> > Subject: Re: [Elecraft] Antenna Relays > > > You may want to keep in mind that grounding an antenna > > when it is not used may not be a good idea. It is > > possible to significantly distort patterns with the > > wrong combination. It may be worth detuning an antenna > > before grounding it to minimize this effect. > > > > This may be more of an issue with multiple vertical > > antennas on harmonic frequencies. > > Cheers, > > Julius > > n2wn > > True. I had +/- the same experience. Due to the size limitations of my lot I > need to 'cross polarize' between 80 and 160m. I had a working 80m dipole and > added a 160m dipole, which ruined the 80m resonance and I never got 160m > working (resonance not to be found). Now I have an 80m vertical and a shorty > 160m dipole, within 10m of each other and no problem at all (not even in > SO2R @ 1kW). > > 73 de Franki ON5ZO > > _______________________________________________ > 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
