well Don, The good thing about that is it must be fairly efficient. That thing is probably only a few ohms R and a bunch of x, any significant series r would make it wider, sort of like a 100 ft run of small coax and an SWR of " only 4 to 1 on 28 mc." it could be a dead short on the antenna end. 80 has been so noisy lately that I have about given up. Bernie W8RPW
Original Message ----- From: "D. Chester" <k4...@charter.net> To: <amradio@mailman.qth.net> Sent: Tuesday, June 22, 2010 11:35 AM Subject: Re: [AMRadio] Antennas >> There have been some interesting cases with short loaded antennas >> in the BC band, the bandwidth has occasionally been so narrow that the AM >> sidebands become attenuated! Not going to see that effect in the amateur >> bands unless someone is running an antenna only a few feet long!! >> Bernie W8RPW > > I almost have that situation on 160m when I use my 80m dipole, fed with > open wire line and balanced tuner. I can move maybe +/- 5 kHz before I > have > to retune. Using that antenna set-up is like being crystal controlled, > since I have to go down to the tower to re-set the tuner. > > Hopefully, by upcoming season I'll have my remote tuning system, with > reversible DC motor, so I'll at least be able to QSY within the same band > without a trip to t he tower. I hope to eventually make it so I can > change > bands remotely as well. > > > Don k4kyv > > > > > > > _______________________________________________________________ > > This message was typed using the DVORAK keyboard layout. > > http://www.mwbrooks.com/dvorak/ > http://gigliwood.com/abcd/ > > ______________________________________________________________ > Our Main Website: http://www.amfone.net > AMRadio mailing list > Searchable Archives: http://www.mail-archive.com/amradio@mailman.qth.net/ > List Rules (must read!): http://w5ami.net/amradiofaq.html > List Home: http://mailman.qth.net/mailman/listinfo/amradio > Post: AMRadio@mailman.qth.net > To unsubscribe, send an email to amradio-requ...@mailman.qth.net with > the word unsubscribe in the message body. > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > ______________________________________________________________ Our Main Website: http://www.amfone.net AMRadio mailing list Searchable Archives: http://www.mail-archive.com/amradio@mailman.qth.net/ List Rules (must read!): http://w5ami.net/amradiofaq.html List Home: http://mailman.qth.net/mailman/listinfo/amradio Post: AMRadio@mailman.qth.net To unsubscribe, send an email to amradio-requ...@mailman.qth.net with the word unsubscribe in the message body. This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
