Re: Topband: WTB a low noise preamp .....
Ops.just read up on the TOI number and the DXE RPA-1 comes in with a much better TOI number so...anyone with an excess to their needs DXE RPA-1 or similar pre-ampcontact me off-line. 72 de Jim R. K9JWV From: rodenkirch_...@msn.com To: topband@contesting.com Subject: WTB a low noise preamp . Date: Mon, 20 Jul 2015 10:15:00 -0600 of anyone has a spare or excess to your needs low noise pre amp (similar to a KD9SV design) you'd sell, please contact me off line72 de Jim Rodenkirch K9JWV _ Topband Reflector Archives - http://www.contesting.com/_topband
Topband: WTB a low noise preamp .....
of anyone has a spare or excess to your needs low noise pre amp (similar to a KD9SV design) you'd sell, please contact me off line72 de Jim Rodenkirch K9JWV _ Topband Reflector Archives - http://www.contesting.com/_topband
Topband: 4SQ antennas directions
Hello What´s the width angle of a single antenna in a 4SQ system? In USA I have W6 at 310 deg and W1 at 350 deg. In Europe I have: - EI, GI, GM at 25 deg - CT, F, DL, EA, PA, EA8, UA1 at 35 deg - OE, OK, HA, OM, UA3 at 40 deg - 6W, 5T, I, E7, 4O, YU, UA4 at 45 deg - LZ, SV, UA6 at 50 deg - 5N, TT, SU, YI, SV9, SV5, TA, at 55 deg Classic setup will be antennas at 45, 135, 225 and 315 But this will be the best positions from me? For Europe 45 degrees will be OK, but not sure about 315 degrees for USA If I change USA antenna at 325 deg, I don´t think Europe at 55 degrees will be the best What would you do in my situation? Thanks in advance 73, Jorge CX6VM/CW5W --- El software de antivirus Avast ha analizado este correo electrónico en busca de virus. https://www.avast.com/antivirus _ Topband Reflector Archives - http://www.contesting.com/_topband
Re: Topband: 4SQ antennas directions
Doing this will put the weakest signal (-2.5 dB) at 350 degrees instead of 0. John KK9A To: Jorge Diez - CX6VM cx6vm.jo...@gmail.com Subject:Re: Topband: 4SQ antennas directions From: Guy Olinger K2AV k2av@gmail.com Date: Mon, 20 Jul 2015 20:39:48 -0400 Hello Jorge, The common 4sq orientation in the eastern U.S. is 45/135/225/315 degrees. That simply is to put the best pattern on Europe at 45 degrees. With your directions to Europe and the USA you will be a half dB better to far western U.S. and Northern Europe with 35/125/215/305 degrees. In this case you will be well centered on BOTH Europe at 35 degrees and USA at 305 degrees. 73, Guy K2AV _ Topband Reflector Archives - http://www.contesting.com/_topband
Re: Topband: 4SQ antennas directions
Hello Jorge, The common 4sq orientation in the eastern U.S. is 45/135/225/315 degrees. That simply is to put the best pattern on Europe at 45 degrees. With your directions to Europe and the USA you will be a half dB better to far western U.S. and Northern Europe with 35/125/215/305 degrees. In this case you will be well centered on BOTH Europe at 35 degrees and USA at 305 degrees. 73, Guy K2AV On Monday, July 20, 2015, Jorge Diez - CX6VM cx6vm.jo...@gmail.com wrote: Hello Guy Not understand at all Did you say that I can put one antenna at 35 and other at 325? This is a 70 degrees difference, not 90. 73, Jorge *De:* guyk...@gmail.com javascript:_e(%7B%7D,'cvml','guyk...@gmail.com'); [mailto: guyk...@gmail.com javascript:_e(%7B%7D,'cvml','guyk...@gmail.com');] *En nombre de *Guy Olinger K2AV *Enviado el:* lunes, 20 de julio de 2015 07:52 p.m. *Para:* Jorge Diez - CX6VM *CC:* towert...@contesting.com javascript:_e(%7B%7D,'cvml','towert...@contesting.com');; TopBand List *Asunto:* Re: Topband: 4SQ antennas directions Midway between 25 and 55 is 40. Midway between 310 and 350 is 330. Rotating counterclockwise 10 degrees from the 45/135/etc common USA settings would give you NE and NW pattern centers at 35 and 325. 35 and 325 is very close to 40 and 330. It will bring far west USA up from 30 degrees off center lobe (-1 dB) to 20 degrees off center lobe (-0.5 dB), for a half dB improvement. It's also mildly better for Scandanavia and Asiatic Russia. If the orientation is entirely arbitrary, then might as well get the half dB. They didn't get 45/135/etc from the Bible. It's just the direction to Europe from my part of the globe. What gets done about the counterpoise for 160m verticals, excellent vs. poor, will make far more difference. 73, Guy K2AV On Mon, Jul 20, 2015 at 4:44 PM, Jorge Diez - CX6VM cx6vm.jo...@gmail.com javascript:_e(%7B%7D,'cvml','cx6vm.jo...@gmail.com'); wrote: Hello What´s the width angle of a single antenna in a 4SQ system? In USA I have W6 at 310 deg and W1 at 350 deg. In Europe I have: - EI, GI, GM at 25 deg - CT, F, DL, EA, PA, EA8, UA1 at 35 deg - OE, OK, HA, OM, UA3 at 40 deg - 6W, 5T, I, E7, 4O, YU, UA4 at 45 deg - LZ, SV, UA6 at 50 deg - 5N, TT, SU, YI, SV9, SV5, TA, at 55 deg Classic setup will be antennas at 45, 135, 225 and 315 But this will be the best positions from me? For Europe 45 degrees will be OK, but not sure about 315 degrees for USA If I change USA antenna at 325 deg, I don´t think Europe at 55 degrees will be the best What would you do in my situation? Thanks in advance 73, Jorge CX6VM/CW5W --- El software de antivirus Avast ha analizado este correo electrónico en busca de virus. https://www.avast.com/antivirus _ Topband Reflector Archives - http://www.contesting.com/_topband -- [image: Avast logo] https://www.avast.com/antivirus El software de antivirus Avast ha analizado este correo electrónico en busca de virus. www.avast.com https://www.avast.com/antivirus -- Sent via Gmail Mobile on my iPhone _ Topband Reflector Archives - http://www.contesting.com/_topband
Re: Topband: 4SQ antennas directions
Midway between 25 and 55 is 40. Midway between 310 and 350 is 330. Rotating counterclockwise 10 degrees from the 45/135/etc common USA settings would give you NE and NW pattern centers at 35 and 325. 35 and 325 is very close to 40 and 330. It will bring far west USA up from 30 degrees off center lobe (-1 dB) to 20 degrees off center lobe (-0.5 dB), for a half dB improvement. It's also mildly better for Scandanavia and Asiatic Russia. If the orientation is entirely arbitrary, then might as well get the half dB. They didn't get 45/135/etc from the Bible. It's just the direction to Europe from my part of the globe. What gets done about the counterpoise for 160m verticals, excellent vs. poor, will make far more difference. 73, Guy K2AV On Mon, Jul 20, 2015 at 4:44 PM, Jorge Diez - CX6VM cx6vm.jo...@gmail.com wrote: Hello What´s the width angle of a single antenna in a 4SQ system? In USA I have W6 at 310 deg and W1 at 350 deg. In Europe I have: - EI, GI, GM at 25 deg - CT, F, DL, EA, PA, EA8, UA1 at 35 deg - OE, OK, HA, OM, UA3 at 40 deg - 6W, 5T, I, E7, 4O, YU, UA4 at 45 deg - LZ, SV, UA6 at 50 deg - 5N, TT, SU, YI, SV9, SV5, TA, at 55 deg Classic setup will be antennas at 45, 135, 225 and 315 But this will be the best positions from me? For Europe 45 degrees will be OK, but not sure about 315 degrees for USA If I change USA antenna at 325 deg, I don´t think Europe at 55 degrees will be the best What would you do in my situation? Thanks in advance 73, Jorge CX6VM/CW5W --- El software de antivirus Avast ha analizado este correo electrónico en busca de virus. https://www.avast.com/antivirus _ Topband Reflector Archives - http://www.contesting.com/_topband _ Topband Reflector Archives - http://www.contesting.com/_topband
