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Total 11 documents matching your query.

1. Topband: Power Coupling in the USA (score: 1): Author: W8JI@contesting.com (Tom Rauch); Date: Mon, 6 May 2002 07:12:56 -0400; Like Bill and others, I think there is FAR too much going on to make definitive statements that at a certain latitude things "just switch" and one antenna is generally better than another. there are; /archives//html/Topband/2002-05/msg00065.html (10,752 bytes)
2. Topband: Power Coupling in the USA (score: 1): Author: sire@iinet.net.au (Steve Ireland); Date: Mon, 06 May 2002 12:47:21 +0800; VK6VZ replied: G'day Bill, I agree with you on the second and third points, but I guess my version of the first - on 160m - would be: 1. Vertical antennas are usually better DX antennas than (higher-; /archives//html/Topband/2002-05/msg00062.html (11,401 bytes)
3. Topband: Power Coupling in the USA (score: 1): Author: sire@iinet.net.au (Steve Ireland); Date: Mon, 06 May 2002 11:59:24 +0800; Hi Gary, Great to hear from you and hope all is well. I agree with you entirely, especially as island-based DXpeditions are usually near the sea, with the very low far-field losses that proximity to; /archives//html/Topband/2002-05/msg00060.html (9,752 bytes)
4. SV: Topband: Power Coupling in the USA (score: 1): Author: ozling@mail.dk (Henrik Weiss); Date: Sun, 05 May 2002 21:21:31 +0100; Steve, Another point of view from you which could be complemented by the fact that your real ground reflection height would be more than it actually is measured. Have you ever measured it ? I am sure; /archives//html/Topband/2002-05/msg00047.html (7,773 bytes)
5. Topband: Power Coupling in the USA (score: 1): Author: btippett@alum.mit.edu (Bill Tippett); Date: Sun, 05 May 2002 12:07:59 +0100; Hi Steve! I don't want to get into an anecdote contest with anyone but would just like to factually correct something you wrote. I'll summarize my opinion by simply saying: 1. Vertical antennas are b; /archives//html/Topband/2002-05/msg00040.html (9,070 bytes)
6. Topband: Power Coupling in the USA (score: 1): Author: sire@iinet.net.au (Steve Ireland); Date: Sun, 05 May 2002 12:43:09 +0800; W8JI: VK6VZ replied: Tom didn't mention the many contacts he has had with me/VK6HD. I listen to Tom working into VK several times each week and call him from time to time. At this end, my inverted ve; /archives//html/Topband/2002-05/msg00037.html (11,974 bytes)
7. Topband: Power Coupling in the USA (score: 1): Author: W8JI@contesting.com (Tom Rauch); Date: Sat, 4 May 2002 08:34:43 -0400; I second that. I see similar effects here, and hundreds of AB tests by VK3ZL between his dipole and short vertical have showed similar results. At sunrise, it **sometimes** doesn't matter very much; /archives//html/Topband/2002-05/msg00033.html (9,385 bytes)
8. Topband: Power Coupling in the USA (score: 1): Author: bobnm7m@cnw.com (Robert Brown); Date: Fri, 3 May 2002 20:25:51 -0700 (PDT); John, In regard to your question about power coupling and take-off angles (TOA) of antennas, power coupling is greatest when the E- field from an antenna is parallel to the geomagnetic field and the; /archives//html/Topband/2002-05/msg00029.html (10,809 bytes)
9. Topband: Power Coupling in the USA (score: 1): Author: john.w1fv@telocity.com (John Kaufmann); Date: Fri, 03 May 2002 13:31:35 -0700 (PDT); The variability in takeoff angle certainly adds another dimension to the problem here. The quantitative data on power coupling from NM7M and others (see the article by K9LA, for example, in the lates; /archives//html/Topband/2002-05/msg00025.html (7,981 bytes)
10. Topband: Power Coupling in the USA (score: 1): Author: btippett@alum.mit.edu (Bill Tippett); Date: Fri, 03 May 2002 16:09:16 +0100; Far more significant than power coupling is takeoff angle (TOA) differences between low dipoles and verticals. This is what causes the typical large differences observed of >10 dB depending on path.; /archives//html/Topband/2002-05/msg00024.html (9,736 bytes)
11. Topband: Power Coupling in the USA (score: 1): Author: bobnm7m@cnw.com (Robert Brown); Date: Fri, 3 May 2002 07:39:40 -0700 (PDT); Friends in Radio Land - With the recent postings about magneto-ionic power coupling for the K1B DXpedition, I have received a number of private inquiries about the power coupling across the USA. In t; /archives//html/Topband/2002-05/msg00023.html (10,002 bytes)

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