----- Original Message ----- From: "JK" <jkolin at optonline.net> To: <antennas at mailman.qth.net> Sent: Wednesday, September 30, 2009 2:59 PM Subject: Re: [Antennas] Tower alternatives > When using dipoles hung under yagis, you will get a change in SWR and Yagi > Pattern distortion. I was able to reduce this phenomonon by de-tuning the > dipole using my antenna tuner. I tuned the tuner as it was connected to > the dipole for minimum SWR on the yagi! Sounds crazy but it did correct > the higher SWR problems on the Yagi that were obviously caused by the > dipole hanging under it. I do not know if this method also reduced the > Yagi pattern distortion. >> I have always found that hanging large wires or other Yagis near other > directional antennas would cause degradation of the directional antennas > performance. Many hams have antennas hanging too close to other antennas > which will affect patterns. >> Jay NE2Q >>>> ----- Original Message ----- > From: <n8de at thepoint.net> > To: "John Hensley" <w5jv at hotmail.com> > Cc: <antennas at mailman.qth.net> > Sent: Wednesday, September 30, 2009 1:23 PM > Subject: Re: [Antennas] Tower alternatives >>>> Did this many years ago. >> Good thing: works fine on 80m & 40m >>>> Bad thing: detuned the yagis above terribly due to harmonic >> resonances in the guys. >>>> I wouldn't do it again. >> Don >> N8DE >>>> Quoting John Hensley <w5jv at hotmail.com>: >>>>>>>> The feedback on towers has been great. Thanks again to everyone. >>> Are there any caveats on using the guy wires as inverted-V >>> dipoles?If each guy wire had four equally spaced legs, two sets of >>> guy wirescould be configured as two sets of 80m and 40m inverted-V >>> antennas180 degrees out of phase on each band. Has anyone tried this. >>> John >>> _________________________________________________________________ >>> Microsoft brings you a new way to search the web. Try Bing™ now >>> http://www.bing.com?form=MFEHPG&publ=WLHMTAG&crea=TEXT_MFEHPG_Core_tagline_try >>> bing_1x1 >>> ______________________________________________________________ >>> Antennas mailing list >>> Home: http://mailman.qth.net/mailman/listinfo/antennas >>> Help: http://mailman.qth.net/mmfaq.htm >>> Post: mailto:Antennas at mailman.qth.net >>>>>> This list hosted by: http://www.qsl.net >>> Please help support this email list: http://www.qsl.net/donate.html >>>>>>>>>>> ______________________________________________________________ >> Antennas mailing list >> Home: http://mailman.qth.net/mailman/listinfo/antennas >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Antennas at mailman.qth.net >>>> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >