Victor’s idea is very good. Some kind of material to create spikes, or a surface where they cannot perch.
II think the cat would want to wander the neighborhood ;-) Dave wo2x Dave wo2x Sent from my iPad > On Jun 7, 2020, at 10:35 AM, Victor Rosenthal 4X6GP <k2vco....@gmail.com> > wrote: > > Owls don't work unless (maybe) you can mechanize it so that the wings flap > and it hoots. > > I have a roof with pigeon issues, and the only thing that works is to make > the surface unattractive to them. If there is some way you could attach > spikes to the top surfaces... maybe superglue broken glass to it? Or wrap it > with fiberglass insulation, or use that plastic stuff used to protect kids > from the supports of a swing set to make it too fat for them to want to sit > on. > > The only thing that works (other than birdshot) is to make the surface > unattractive. > > 73, > Victor, 4X6GP > Rehovot, Israel > Formerly K2VCO > CWops no. 5 > http://www.qsl.net/k2vco/ >> On 07/06/2020 17:15, Andy Durbin wrote: >> I use a home brew mag loop on 30 m band and work into Asia most mornings >> with it. The loop tunes to a near perfect match (1.00:1 SWR) but becomes >> instantly detuned when a dove perches on top of it. SWR jumps instantly to >> > 3.0:1 and trips my High SWR monitor. The birds look stupid but they are >> smart enough not to straddle the loop opening. I imagine full loop voltage >> between their legs would de-tune them a bit but they just perch one side or >> the other. >> Damn dove nearly cost me a QSO with JD1 this morning and that was new DX for >> 30 m. I tail ended with FT8, he came back, I started to send my report, >> High SWR trip, run to back door to chase the dove away, and got back before >> JD1 had given up on me. >> So how to keep birds of a mag loop without lowing the Q? >> 73, >> Andy k3wyc >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft@mailman.qth.net >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to k2vco....@gmail.com > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to rocke...@gmail.com ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
