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21. Topband: Switching In Extra Antenna Length (score: 1): Author: Thomas Giella, KN4LF" <kn4lf@arrl.net (Thomas Giella, KN4LF); Date: Fri, 5 Jul 2002 09:48:47 -0400; 73, Thomas Giella, KN4LF Plant City, FL KN4LF 160 Meter Amateur Radio Resources: http://www.kn4lf.com -- Outgoing mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.co; /archives//html/Topband/2002-07/msg00040.html (8,578 bytes)
22. Topband: Ionospheric & Geo (score: 1): Author: Thomas Giella, KN4LF" <kn4lf@arrl.net (Thomas Giella, KN4LF); Date: Tue, 9 Jul 2002 19:46:39 -0400; Mac PY2CW Asked: Is there any correlation between top band propagation conditions versus solar activity, ionospheric conditions, geophysical activity, etc?..... KN4LF MF Radio Propagation Theory Note; /archives//html/Topband/2002-07/msg00054.html (7,573 bytes)
23. Topband: Beverage Transformers (score: 1): Author: Thomas Giella, KN4LF" <kn4lf@arrl.net (Thomas Giella, KN4LF); Date: Mon, 15 Jul 2002 10:01:15 -0400; I have used both the conventional multiple filar winding transformers as covered in ON4UN's book and the isolation transformers too. I have personally found the best performance as far as reduced noi; /archives//html/Topband/2002-07/msg00087.html (7,295 bytes)
24. Topband: Voltage Fed Vertical (score: 1): Author: KN4LF, T. F. Giella" <kn4lf@arrl.net (KN4LF, T. F. Giella); Date: Fri, 21 Jun 2002 11:01:33 -0400; I use what I call a linear loaded voltage fed T antenna with the entire vertical section and linear load section made out of 450 ohm ladderline. The vertical section is 80 feet high, with a 46 foot l; /archives//html/Topband/2002-06/msg00035.html (9,298 bytes)
25. Topband: Beverage Frustrations (score: 1): Author: KN4LF, T. F. Giella" <kn4lf@arrl.net (KN4LF, T. F. Giella); Date: Fri, 28 Jun 2002 09:05:33 -0400; The moisture that we find inside our plastic enclosures whether it be a matching transformer or grounding resistor, generally does not somehow get sucked in through a well sealed enclosure box. What; /archives//html/Topband/2002-06/msg00056.html (9,689 bytes)
26. Topband: QRP DX (score: 1): Author: kn4lf@tampabay.rr.com (KN4LF, T. F. Giella); Date: Sat, 29 Jun 2002 10:33:51 +0100; Riccardo Asked: I would appreciate very much if QRP operators would share their experience about typical DX activity on 160 at QRP level (DXCC, WAC, Europe-US contacts, contest placement, etc.). Thom; /archives//html/Topband/2002-06/msg00063.html (7,822 bytes)
27. Topband: Takeoff Angle (score: 1): Author: kn4lf@tampabay.rr.com (KN4LF, T. F. Giella); Date: Wed, 01 May 2002 22:01:58 +0100; Thomas KN4LF Says: I would not expect to see close in one way propagation on 160 as mentioned above but takeoff angle is very important for close in ragchewing versus DXing. Here in Florida a group m; /archives//html/Topband/2002-05/msg00006.html (7,828 bytes)
28. Topband: Topband PWR Coupling Ant's (score: 1): Author: kn4lf@tampabay.rr.com (KN4LF, T. F. Giella); Date: Fri, 03 May 2002 13:33:01 +0100; Just a personal observation, on early Wednesday morning the 24th here in Plant City in Central Florida K1B was 599 on my low dipole up at 80 feet and nonexistent on my 80 foot tee! Joe KK4TR in Brook; /archives//html/Topband/2002-05/msg00021.html (6,681 bytes)
29. Topband: 136 KC VS 160 (score: 1): Author: kn4lf@tampabay.rr.com (KN4LF, T. F. Giella); Date: Sat, 11 May 2002 02:08:57 +0100; Boy if you think 160 meter propagation is complicated, wait until you experience 136 kc propagation. You get refraction off of the D layer at day. 160 will always be THE TOPBAND. 73, T. F. Giella, KN; /archives//html/Topband/2002-05/msg00106.html (6,463 bytes)
30. Topband: Lightning QRN (score: 1): Author: kn4lf@tampabay.rr.com (KN4LF, T. F. Giella); Date: Sun, 12 May 2002 23:24:55 +0100; Thomas KN4LF Said: That's basically correct. Actually a lightning bolt is comprised of on the average 3 discharges, to as many as 20. That's what the flickering is that our eyes see and it all happen; /archives//html/Topband/2002-05/msg00112.html (7,296 bytes)
31. Topband: 3/8 Wave L (score: 1): Author: kn4lf@tampabay.rr.com (KN4LF, T. F. Giella); Date: Fri, 17 May 2002 18:23:05 +0100; It's a common misconception that all 3/8 wave L antennas automatically radiate a majority of it's radiation at a high angle. Actually it all boils down to it's set up configuration. I've successfully; /archives//html/Topband/2002-05/msg00129.html (6,386 bytes)
32. Topband: Low Power 160 DXCC (score: 1): Author: kn4lf@tampabay.rr.com (KN4LF, T. F. Giella); Date: Tue, 28 May 2002 02:22:33 +0100; Thomas KN4LF Says: It obviously takes longer but DXCC on 160 is possible with lower power, i.e. 100 watts, even on phone. I have 117 worked and 108 confirmed on 160. Of the 117 worked, 103 were with; /archives//html/Topband/2002-05/msg00180.html (6,766 bytes)
33. Topband: 160 DX (score: 1): Author: kn4lf@tampabay.rr.com (KN4LF, T. F. Giella); Date: Mon, 15 Apr 2002 18:10:34 +0100; Members of the Topband Phone DXers Group worked PY3CEJ in southern Brazil last night on 1845 kc on phone. He was 59 when I worked him a few minutes after my local sunset at 0009 UTC and then was an h; /archives//html/Topband/2002-04/msg00034.html (6,666 bytes)
34. Topband: VK9MK & Propagation Condx (score: 1): Author: kn4lf@tampabay.rr.com (KN4LF, T. F. Giella); Date: Mon, 22 Apr 2002 17:22:00 +0100; For those of you who realize that you can reach DXCC faster by having an understanding of how 160 propagation works. I produce a non profit 7 Day Medium Wave Radio Propagation Outlook at: www.kn4lf.c; /archives//html/Topband/2002-04/msg00048.html (6,577 bytes)
35. Topband: Topband Geomagnetic Absorption (score: 1): Author: KN4LF, T. F. Giella" <kn4lf@arrl.net (KN4LF, T. F. Giella); Date: Tue, 30 Apr 2002 00:43:00 -0400; Tom Asked: "I wonder if anyone can offer opinions on the advantages that vertically polarized antennas have over horizontals on 160M related to geomagnetic Earth absorption?" Thomas KN4LF Says: Anten; /archives//html/Topband/2002-04/msg00071.html (8,918 bytes)
36. Topband: Re: FL DX & Topband Propagation (score: 1): Author: Thomas Giella, KN4LF" <kn4lf@earthlink.net (Thomas Giella, KN4LF); Date: Fri, 1 Mar 2002 12:55:07 -0500; I and KK4SI easily worked 5B4MF and W4MZ worked 5H1RK from Florida's central east coast last night. PW0T was also finally Q5 audible here at my station in west central Florida. We are seeing the best; /archives//html/Topband/2002-03/msg00012.html (9,633 bytes)
37. Topband: Topband RX Ant Reality Check (score: 1): Author: Thomas Giella, KN4LF" <kn4lf@earthlink.net (Thomas Giella, KN4LF); Date: Sat, 2 Mar 2002 09:18:42 -0500; To suggest that an op. wait to call a DX station when the DX station bumps up to Q5 is nonsense. If our fellow ops with 200-300+ DXCC countries followed that idea their totals would be much lower. So; /archives//html/Topband/2002-03/msg00027.html (7,161 bytes)
38. Topband: Tail Ending Legitimate (score: 1): Author: Thomas Giella, KN4LF" <kn4lf@earthlink.net (Thomas Giella, KN4LF); Date: Sat, 2 Mar 2002 22:04:23 -0500; I think most reasonable people would define the "tail ending" technique as: timing the transmission of ones own call to coincide with the hordes of other DXers all temporarily ending their calling at; /archives//html/Topband/2002-03/msg00032.html (7,798 bytes)
39. Topband: Topband Takeoff Angles (score: 1): Author: kn4lf@earthlink.net (KN4LF, Thomas Giella); Date: Wed, 06 Mar 2002 17:12:08 +0000; Bert Asked: Is there any information out there on most useful TOA's on 160m, in particular for the Eastern NA to Europe path? Thomas KN4LF Says: Well most antennas in the real world transmit "some" R; /archives//html/Topband/2002-03/msg00051.html (7,051 bytes)
40. Topband: ICEPAC & PROPLAB PRO (score: 1): Author: kn4lf@earthlink.net (KN4LF, Thomas Giella); Date: Thu, 07 Mar 2002 12:42:47 +0000; Carl K9LA is certainly correct, ICEPAC does not give correct results for 160 meters. Unfortunately neither does PROPLAB PRO, though it is better software then nothing. 73, Thomas Giella, KN4LF; /archives//html/Topband/2002-03/msg00059.html (6,499 bytes)

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