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21. Re: Topband: Multiple verticals one feed-point. (score: 1)
Author: "Clive GM3POI" <clive@gm3poi.com>
Date: Wed, 19 Sep 2018 16:48:44 -0500
Gary as long as the verticals are isolated above ground when not switched in. You should be ok. 73 Clive GM3POI My HF antennas are all wire verticals; 20M vertical, 30M vertical, 40M vertical, 80 INV
/archives//html/Topband/2018-09/msg00146.html (8,145 bytes)

22. Re: Topband: Toploaded vertical - SWR (score: 1)
Author: "Clive GM3POI" <clive@gm3poi.com>
Date: Thu, 20 Sep 2018 04:59:56 -0500
Don I should have mentioned that 1.9 or 1.89mhz is a very good figure to aim for before adding the hairpin. 73 Clive GM3POI Hi Clive, Nothing wrong with the hairpin as you mentioned which I really co
/archives//html/Topband/2018-09/msg00152.html (11,328 bytes)

23. Re: Topband: Toploaded vertical - SWR (score: 1)
Author: "Clive GM3POI" <clive@gm3poi.com>
Date: Thu, 20 Sep 2018 05:00:46 -0500
Yes Don, I find folding back the top loading easy. Then using a roller inductance to find the value needed to match it followed by the last stage of measuring the inductance and recreating it using A
/archives//html/Topband/2018-09/msg00153.html (11,215 bytes)

24. Re: Topband: 160m antenna help (score: 1)
Author: "Clive GM3POI" <clive@gm3poi.com>
Date: Fri, 21 Sep 2018 17:14:34 -0500
Paul this was covered a few days ago. Aim to resonate the L at approx. 1.9mhz then put a hairpin coil across the feed point, somewhere in the region of 2.5 microhenries. Then if needed adjust the hor
/archives//html/Topband/2018-09/msg00159.html (11,073 bytes)

25. Re: Topband: 160m antenna help (score: 1)
Author: "Clive GM3POI" <clive@gm3poi.com>
Date: Fri, 21 Sep 2018 17:47:52 -0500
Paul we know your problem is that the ground losses with your system are probably at least twice what they would be with less radial issues. Removing the L and making it a T would gain you the most.
/archives//html/Topband/2018-09/msg00161.html (12,399 bytes)

26. Re: Topband: Why no NA 160m Activity? (score: 1)
Author: "Clive GM3POI" <clive@gm3poi.com>
Date: Thu, 18 Oct 2018 03:49:51 -0500
Having been in Florida in October I can assure you there is plenty of Lightning around. I don't imagine that will die down for some weeks yet. Fully audible here as well as in the US. Check http://en
/archives//html/Topband/2018-10/msg00086.html (9,040 bytes)

27. Re: Topband: K9AY loop -- adding additional radials? (score: 1)
Author: "Clive GM3POI" <clive@gm3poi.com>
Date: Tue, 13 Nov 2018 18:04:39 -0500
Peter when testing listening to various stations you should be mindful as to the likely incoming wave angle. I.e do not expect a very good F/B ration if the station is not low angle. Try it and see b
/archives//html/Topband/2018-11/msg00081.html (8,425 bytes)

28. Re: Topband: ARRL DXCC - 160 Meters (score: 1)
Author: "Clive GM3POI" <clive@gm3poi.com>
Date: Sat, 17 Nov 2018 05:04:58 -0500
Doesn't say much for the DXCC checking process either. 73 Clive GM3POI hmmmmm Why would anyone with a LEGITIMATE 339 DXCC entities made on 160m made as licensed station OK1RD submit a DXCC total as C
/archives//html/Topband/2018-11/msg00127.html (11,066 bytes)

29. Re: Topband: Vertical and horizontal polarized antennas (score: 1)
Author: "Clive GM3POI" <clive@gm3poi.com>
Date: Sat, 17 Nov 2018 06:56:20 -0500
My take on this is that having had a low inverted vee at about 80ft and a top loaded vertical over a very good ground system to compare against each other. I have found the following that despite the
/archives//html/Topband/2018-11/msg00132.html (8,483 bytes)

30. Re: Topband: ARRL DXCC - 160 Meters (score: 1)
Author: "Clive GM3POI" <clive@gm3poi.com>
Date: Sat, 17 Nov 2018 08:37:32 -0500
There have been no uploads for OK1YQ therefore it all has to be cards. 73 Clive GM3POI Hi Joel I have the same impression as Bill mentioned. 160m paper QSL requires a card checker, however LOTW confi
/archives//html/Topband/2018-11/msg00139.html (11,087 bytes)

31. Re: Topband: ARRL DXCC - 160 Meters (score: 1)
Author: "Clive GM3POI" <clive@gm3poi.com>
Date: Tue, 20 Nov 2018 13:58:21 -0500
JC I think you have to be careful about saying this daytime or that qso could not have happened. "It entirely depends where the station is located." An example, I have a QSL with three QSOS between m
/archives//html/Topband/2018-11/msg00196.html (12,368 bytes)

32. Re: Topband: new style PL-259's with screw on back INSTRUCTIONS (score: 1)
Author: "Clive GM3POI" <clive@gm3poi.com>
Date: Wed, 05 Dec 2018 10:27:34 -0500
I have been using those plugs for at least 10 years. They come in useful if you have to put on a plug in cold weather and or high winds because no braid soldering is needed. However at the back of eq
/archives//html/Topband/2018-12/msg00025.html (10,277 bytes)

33. Re: Topband: new style PL-259's with screw on back INSTRUCTIONS (score: 1)
Author: "Clive GM3POI" <clive@gm3poi.com>
Date: Wed, 05 Dec 2018 11:22:06 -0500
Finally, after years of frustration with several types of PL259 connectors, I've settled on the new crimp/solder type from DX Engineering. They're strong, reliable, and easy to install in minutes wh
/archives//html/Topband/2018-12/msg00027.html (12,658 bytes)

34. Re: Topband: new style PL-259's with screw on back INSTRUCTIONS (score: 1)
Author: "Clive GM3POI" <clive@gm3poi.com>
Date: Wed, 05 Dec 2018 11:27:18 -0500
Reflector problems this is what I wanted to say. 73 Clive GM3POI Well here the RF connection Brass / silver plated have been bought by the dozen over the years. The Compression type whilst coming in
/archives//html/Topband/2018-12/msg00028.html (12,884 bytes)

35. Re: Topband: Rather use N-type (was Re: The answer to PL-259 soldering/reliability problems) (score: 1)
Author: "Clive GM3POI" <clive@gm3poi.com>
Date: Thu, 06 Dec 2018 10:42:57 -0500
For anyone that doubts the loss of a good 259. Google K2RIW on the subject who knows a thing or two about UHF and did some numbers on the subject. I have used for a good long time the Silver plated T
/archives//html/Topband/2018-12/msg00048.html (13,884 bytes)

36. Re: Topband: Rather use N-type (was Re: The answer to PL-259 soldering/reliability problems) (score: 1)
Author: "Clive GM3POI" <clive@gm3poi.com>
Date: Thu, 06 Dec 2018 10:55:10 -0500
Seeing I mentioned K2RIW this is a link to his comments about 259s at 70cms much less 160m. https://www.eham.net/ehamforum/smf/index.php?topic=34680.0;wap2 73 Clive GM3POI --Original Message-- From:
/archives//html/Topband/2018-12/msg00049.html (13,313 bytes)

37. Re: Topband: Might be a good EU DX night (score: 1)
Author: "Clive GM3POI" <clive@gm3poi.com>
Date: Fri, 28 Dec 2018 06:50:21 -0500
I very much doubt EK8ZT. Smells very fishy, all the big EK signals are pretty well known in EU and that's not one of them. I think they saw you coming. HNY Clive GM3POI At sunset tonight I was decodi
/archives//html/Topband/2018-12/msg00290.html (9,284 bytes)

38. Re: Topband: Fwd: Topband Digest -- RX Antenna Performance (score: 1)
Author: "Clive GM3POI" <clive@gm3poi.com>
Date: Sat, 29 Dec 2018 17:35:50 -0500
George your last point is a good one. Take any vertical array such an 8 or 9 circle array and point it at a resonant electrical 1/4 wave vertical. The pattern will be destroyed at 200 or 500ft. The T
/archives//html/Topband/2018-12/msg00326.html (26,918 bytes)

39. Re: Topband: 4 Square Receiving at 3V8SF (score: 1)
Author: "Clive GM3POI" <clive@gm3poi.com>
Date: Sat, 02 Mar 2019 06:03:12 -0500
Ash model in also your TX antenna and see whether you need to isolate that vertical on RX with a relay. 73 Clive GM3POI Hi guys, I built a 4 Square Receiving Array for 160m at 3V8SF. I put details in
/archives//html/Topband/2019-03/msg00005.html (8,101 bytes)

40. Re: Topband: Inverted L loading wire dilemma (score: 1)
Author: "Clive GM3POI" <clive@gm3poi.com>
Date: Thu, 14 Mar 2019 19:41:59 -0500
Dave, I would use a different approach, try 2 sloping wires opposite each other of the same length. They will cancel out the horizontal component of the loading and give you an overall better signal.
/archives//html/Topband/2019-03/msg00039.html (8,243 bytes)


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