Re: Topband: T Top Verticals and yagis
Hi Ed, Your conclusions based on your modelling are completely consistent with my practical experience and modelling. The most likely degradation is a T-top between 60 and 75 feet long degrading the front-to-back ratio, pattern and gain of a 40 meter Yagi when its main beam points into a T-top that's roughly parallel to the 40 meter Yagi elements. Only the 40 meter Yagi is affected, especially if the Yagi is within about 400 feet of a 160 meter T-vertical with a 60-75 foot T-top. The 160M T-vertical is not affected. How to avoid degradation of a 40 meter Yagi? - avoid T-tops between 50 and 75 feet long, or - use an inverted-L rather then a T-vertical All of the above is based on actual degradation of my 3 element 40M Yagi by a 160M T-vertical 40 years ago. Changing the T-vertical to an inverted-L returned the 40M Yagi to its prior excellent performance tks 73 Frank W3LPL - Original Message - From: "Ed Sawyer" To: topband@contesting.com Sent: Friday, February 28, 2020 2:47:34 AM Subject: Topband: T Top Verticals and yagis Frank had brought up the interaction of certain T top loading wires and the possible interaction with yagis. I played around with modelling on this and found that just as Frank said, there is interaction of T top wires and yagis. One thing I found was that if the wire is in the front pattern of the yagi it is much more influenced if the wire is the front 1/3 portion rather than the sides and back of the yagi. I didn't find meaningful distortion in the back area 200 ft away but closer than that and approaching the front, and there was definite distortion. Interesting topic Frank. Ed N1UR _ Searchable Archives: http://www.contesting.com/_topband - Topband Reflector _ Searchable Archives: http://www.contesting.com/_topband - Topband Reflector
Topband: T Top Verticals and yagis
Frank had brought up the interaction of certain T top loading wires and the possible interaction with yagis. I played around with modelling on this and found that just as Frank said, there is interaction of T top wires and yagis. One thing I found was that if the wire is in the front pattern of the yagi it is much more influenced if the wire is the front 1/3 portion rather than the sides and back of the yagi. I didn't find meaningful distortion in the back area 200 ft away but closer than that and approaching the front, and there was definite distortion. Interesting topic Frank. Ed N1UR _ Searchable Archives: http://www.contesting.com/_topband - Topband Reflector
Topband: About AA0RS
Dave was originally G3SZA . . . he lived just two miles from me when I first was an SWL, aged 12. He was already working DX on 160m back then (1967), as was another local/old friend of mine, Mike G3SED. They both helped and inspired me, and are the reason I became interested in DX-ing on 160m as soon as I got my full licence 2 years later, when I was old enough (14). Dave was so strong at my QTH back then that not only could I hear him underneath myself (monitoring on my muted receiver), he even moved my SWR bridge with the voltage he put in my antenna ! (thank goodness I had an all-valve receiver that suffered no blocking or intermod problems) He was a rising star with IBM here in Britain, and they persuaded him to move to the USA. He later worked for (or ran?) Alpha Amplifiers before retiring. Dave really is a great guy, still passionate about Top Band . . his 160m setup as AA0RS in Colorado is fantastic, and I have regularly worked him on 160m over the years from there. Roger G3YRO _ Searchable Archives: http://www.contesting.com/_topband - Topband Reflector
Re: Topband: AA0RS result CQ160 SSB
I managed to work him barefoot from FL. I guess living over saltwater helps. 73 Jim WE4S Get BlueMail for Android On Feb 27, 2020, 2:46 PM, at 2:46 PM, Ed Sawyer wrote: >AA0RS was a real alligator out this way. Myself and others calling and >not >able to hear. He eventually called me after I kicked on the amp for >the >last 90 mins of my participation. > > > >Ed N1UR > >_ >Searchable Archives: http://www.contesting.com/_topband - Topband >Reflector _ Searchable Archives: http://www.contesting.com/_topband - Topband Reflector
Re: Topband: Wednesday 160m DX CW Activity Night
On 2/27/2020 5:58 AM, George Taft via Topband wrote: Confess I did not call CQ toward EU. With limited time, the concentration was with SA. Now and for the next six months, N/S paths are better than E/W paths in the Northern Hemisphere. I picked up band-country slots to CP and ZP on 80M in the last month. One was in WPX RTTY. 73, Jim K9YC _ Searchable Archives: http://www.contesting.com/_topband - Topband Reflector
Re: Topband: AA0RS result CQ160 SSB
AA0RS was a real alligator out this way. Myself and others calling and not able to hear. He eventually called me after I kicked on the amp for the last 90 mins of my participation. Ed N1UR _ Searchable Archives: http://www.contesting.com/_topband - Topband Reflector
Re: Topband: Wednesday 160m DX CW Activity Night
Roger, Sorry I missed you. I think I was QRV when you were not. After some quality time with the XYL, I got on about 0200 UT and went until sunrise in Europe. Signals were certainly good, and I worked a few all time new stations as well, so that was nice. I listened for VP8PJ for quite awhile, but heard almost nothing. Then I figured out that my South beverage is broken. It produces band noise, but no signals. It's always something. Today is pouring rain, so I doubt that i will fix it today. I listened a bit on FT-8 at my sunset as well as CW, but nothing unusual there. I could not hear HL5IVL nor any JA stations. Still, the path between NA and EU was very good last night. Too bad it was so lightly utilized. :<( 73 Dave K1WHS On 2/27/2020 12:47 PM, Roger Kennedy wrote: Well I came on a couple of times last night, but gave up after an hour each time. The band was certainly open as my RBN reports were good. There were other Europeans on Calling CQ too . . . but very few NA stations on. I only worked a handful, and reports were good both ways. It saddens me the lack of CW activity on 160 ! Roger G3YRO _ Searchable Archives: http://www.contesting.com/_topband - Topband Reflector _ Searchable Archives: http://www.contesting.com/_topband - Topband Reflector
Re: Topband: CA on 160 м
On 2/27/2020 3:49 AM, uy0zg wrote: California in Ukraine on a real RX is very hard to hear. I have confirmation in LotW magazine of several callsigns from California. But I am completely sure that it was California, in only two cases - N6JV 2009 year, KG6I - 2010 In 2009, Norm, N6JV, was operating from Sacramento county, the same as me, except he was operating from a city lot in those days, doing amazing things considering the limitations. (He has since moved to acreage near me). In 2009, the propagation spotlight favored our area a number of times. That was around the time I worked Russia on SSB, etc. That over the pole propagation returned this winter for the first time since 2009. It seems to be a different mechanism than Western EU. Norm is certainly one of the top DX'ers in our local club (Motherlode DX/Contest Club). We have another member currently operating on the South Orkney DXpedition. I have heard that one on 160 (CW!) for only 2 minutes so far, unfortunately not long enough to warm up the amplifier. Only a few locals here have worked it, and then just barely. The low sunspots don't seem to have helped on 160, but they have ensured that we can't work S. Orkney on 15 meters and up. I needed VP8-O on 40 and 80, and those were fairly easy QSO's. Rick N6RK _ Searchable Archives: http://www.contesting.com/_topband - Topband Reflector
Re: Topband: Wednesday 160m DX CW Activity Night
I heard a ZL on CW last night but never got a callsign and then they were gone. Moved to FT8 and was able to work ZL4AS with a -18. He was hearing me much better. Made some other CQ's and nothing. KV0Q was on for the CQ 160 CW as was K0RF. KV0Q is pretty close to me. I think he did a single 80 for the ARRL CW. W0MU On 2/27/2020 6:58 AM, George Taft via Topband wrote: While I assumed the band was open NA/EU, the interest seemed to be north/south, last evening, with VP8PJ and CP6/DK7PE active. Rudi had a nice (but small) pile going most of the evening. The VP8 operation seems to perk from 03Z until their SR. Confess I did not call CQ toward EU. With limited time, the concentration was with SA. 73 George W8UVZ On Thursday, February 27, 2020, 08:30:21 AM EST, wrote: I agree with you Roger! Len SM7BIC -Ursprungligt meddelande- Från: Topband För Roger Kennedy Skickat: den 27 februari 2020 13:47 Till: topband@contesting.com Ämne: Topband: Wednesday 160m DX CW Activity Night Well I came on a couple of times last night, but gave up after an hour each time. The band was certainly open as my RBN reports were good. There were other Europeans on Calling CQ too . . . but very few NA stations on. I only worked a handful, and reports were good both ways. It saddens me the lack of CW activity on 160 ! Roger G3YRO _ 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
Re: Topband: Wednesday 160m DX CW Activity Night
While I assumed the band was open NA/EU, the interest seemed to be north/south, last evening, with VP8PJ and CP6/DK7PE active. Rudi had a nice (but small) pile going most of the evening. The VP8 operation seems to perk from 03Z until their SR. Confess I did not call CQ toward EU. With limited time, the concentration was with SA. 73 George W8UVZ On Thursday, February 27, 2020, 08:30:21 AM EST, wrote: I agree with you Roger! Len SM7BIC -Ursprungligt meddelande- Från: Topband För Roger Kennedy Skickat: den 27 februari 2020 13:47 Till: topband@contesting.com Ämne: Topband: Wednesday 160m DX CW Activity Night Well I came on a couple of times last night, but gave up after an hour each time. The band was certainly open as my RBN reports were good. There were other Europeans on Calling CQ too . . . but very few NA stations on. I only worked a handful, and reports were good both ways. It saddens me the lack of CW activity on 160 ! Roger G3YRO _ 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
Re: Topband: Wednesday 160m DX CW Activity Night
I agree with you Roger! Len SM7BIC -Ursprungligt meddelande- Från: Topband För Roger Kennedy Skickat: den 27 februari 2020 13:47 Till: topband@contesting.com Ämne: Topband: Wednesday 160m DX CW Activity Night Well I came on a couple of times last night, but gave up after an hour each time. The band was certainly open as my RBN reports were good. There were other Europeans on Calling CQ too . . . but very few NA stations on. I only worked a handful, and reports were good both ways. It saddens me the lack of CW activity on 160 ! Roger G3YRO _ Searchable Archives: http://www.contesting.com/_topband - Topband Reflector _ Searchable Archives: http://www.contesting.com/_topband - Topband Reflector
Topband: Wednesday 160m DX CW Activity Night
Well I came on a couple of times last night, but gave up after an hour each time. The band was certainly open as my RBN reports were good. There were other Europeans on Calling CQ too . . . but very few NA stations on. I only worked a handful, and reports were good both ways. It saddens me the lack of CW activity on 160 ! Roger G3YRO _ Searchable Archives: http://www.contesting.com/_topband - Topband Reflector
Topband: CA on 160 м
California in Ukraine on a real RX is very hard to hear. I have confirmation in LotW magazine of several callsigns from California. But I am completely sure that it was California, in only two cases - N6JV 2009 year, KG6I - 2010 There was a good moment this season - in the morning I gave CQ DX. K6AM called me several times. However, he did not accept a report from me ... Yes - FT8 ? I do not use it. --- Nick, UY0ZG http://www.topband.in.ua Jim Brown писал 2020-02-27 12:02: On 2/27/2020 12:20 AM, uy0zg wrote: My best of Colorado at 160: KV0Q - 20 QSOs, K0RF - 12 QSOs, AA0RS - 6 QSOs It's been a while since I heard KV0Q, but the other two stations are bone-crushers 1500 km to the west. From a pretty decent station (but nothing like those CO guys) near San Francisco, the only way I can work EU on 160 is FT8. That's changed over 10 years as a result of increased RX noise on both ends. Those CW QSOs I made soon after moving here in 2006 I can no longer make today. UR and UA are confirmed using FT8 this season, and even Zone 17 and Zone 20! 73, Jim K9YC _ Searchable Archives: http://www.contesting.com/_topband - Topband Reflector _ Searchable Archives: http://www.contesting.com/_topband - Topband Reflector
Re: Topband: AA0RS result CQ160 SSB
On 2/27/2020 12:20 AM, uy0zg wrote: My best of Colorado at 160: KV0Q - 20 QSOs, K0RF - 12 QSOs, AA0RS - 6 QSOs It's been a while since I heard KV0Q, but the other two stations are bone-crushers 1500 km to the west. From a pretty decent station (but nothing like those CO guys) near San Francisco, the only way I can work EU on 160 is FT8. That's changed over 10 years as a result of increased RX noise on both ends. Those CW QSOs I made soon after moving here in 2006 I can no longer make today. UR and UA are confirmed using FT8 this season, and even Zone 17 and Zone 20! 73, Jim K9YC _ Searchable Archives: http://www.contesting.com/_topband - Topband Reflector
Re: Topband: AA0RS result CQ160 SSB
My friend, you probably did not understand me. I have more than 1,500 different callsigns from the USA on 160 meters. Only USA. My best of Colorado at 160: KV0Q - 20 QSOs, K0RF - 12 QSOs, AA0RS - 6 QSOs However, Mike, do not be discouraged - as a writer you are better than me. --- Nick, UY0ZG http://www.topband.in.ua W0MU Mike Fatchett писал 2020-02-27 08:20: I have over 6000 contacts on 160m since 2004. 73 On 2/26/2020 10:06 PM, uy0zg wrote: Dr Mike I have more than 1,500 different callsigns from the USA on 160 meters. But you are not in my log... Sounds like you're an even more famous writer than me ..:-)) --- Nick, UY0ZG http://www.topband.in.ua W0MU Mike Fatchett писал 2020-02-27 02:19: 3830 is not official results. You have too much time on your hands...Get another hobby HI! _ 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
