Corollary: You can't have too many antennas except when they interfere with each other which they often do on Topband where a wavelength is approximately 500 feet...
Even on 20 meters, the pattern of a Yagi is noticeably degraded when it points through another 20 meter Yagi or tribander 500 feet distant or more. Fortunately most Topband receiving antennas don't interfere with each other -- except at extremely close spacing -- because their mutual impedance is negligible. But transmitting antennas and other antenna-like radiators such as power lines -- even 1000 feet away or more -- can significantly degrade the directivity of Topband receiving antennas. 73 Frank W3LPL ----- Original Message ----- From: "David Olean" <[email protected]> To: "Dennis Egan" <[email protected]>, "Steve Ireland" <[email protected]> Cc: "Topband reflector" <[email protected]> Sent: Friday, November 16, 2018 4:50:42 PM Subject: Re: Topband: Propagation improves from VK6 into Europe Hi Steve I missed my sunset as I had a doctor's appt. I had a bad case of Lyme Disease in 2017, and am still taking meds. The doctor was thrilled with my recent bloodwork and figures that I have an almost clean slate. I am feeling great for the first time since 2016! The bad news was the appointment was right at sunset so no listening for LP. I am contemplating a low wire antenna. I just need to find a good spot away from all the beverages. You can't have too many antennas. Dave K1WHS On 11/16/2018 2:56 AM, Dennis Egan wrote: > Steve > > I did hear you but you couldn’t hear me. Big European pileup on you. > > Dennis W1UE > > Sent from my iPhone > >> On Nov 15, 2018, at 20:31, Steve Ireland <[email protected]> wrote: >> >> G’day >> >> Although there was no LP prop into NA today, I had the best European >> propagation since 1 November, working 12 Europeans. >> >> The prop was very much spotlight, favouring Italy, Serbia, Hungary and >> Greece (SV1EOG/7 was a genuine 589), but I did work R8, OH and SM as well. >> >> Let’s hope 160m can surprise us in the next few days. >> >> Vy 73 >> >> Steve, VK6VZ >> >> --- >> This email has been checked for viruses by Avast antivirus software. >> https://www.avast.com/antivirus >> _________________ >> Searchable Archives: http://www.contesting.com/_topband - Topband Reflector > _________________ > Searchable Archives: http://www.contesting.com/_topband - Topband Reflector _________________ Searchable Archives: http://www.contesting.com/_topband - Topband Reflector _________________ Searchable Archives: http://www.contesting.com/_topband - Topband Reflector
