- 1. Topband: Vertical array (score: 1)
- Author: "Mike(W5UC) & Kathy(K5MWH)" <w5uc@suddenlink.net>
- Date: Tue, 11 Dec 2007 16:04:50 -0600
- Please consider the following: A receiving array consisting of two Hi-Z Elements like those used by K7TJR in his 8 element array. Spacing is 1/8 WL. EZ-Nec says at 23 degrees elevation the gain is ma
- /archives//html/Topband/2007-12/msg00104.html (7,085 bytes)
- 2. Topband: Vertical array (score: 1)
- Author: "Lee K7TJR" <k7tjr@msn.com>
- Date: Wed, 12 Dec 2007 22:01:17 -0800
- If you are looking at reducing stateside signals (why?) from the rear of a cardiod antenna such as the 2 element you describe I think you should look at selecting the phasing that will best reduce th
- /archives//html/Topband/2007-12/msg00107.html (8,374 bytes)
- 3. Re: Topband: Vertical array (score: 1)
- Author: "Mike(W5UC) & Kathy(K5MWH)" <w5uc@suddenlink.net>
- Date: Thu, 13 Dec 2007 07:15:56 -0600
- Bingo Lee. You nailed it! Looking at the effect of varying the phase by a small amount my simple mind said: I don't know the angle at which local interference arrives. The only thing I can guestimate
- /archives//html/Topband/2007-12/msg00108.html (8,885 bytes)
- 4. Re: Topband: Vertical array (score: 1)
- Author: "Jim Brown" <jim@audiosystemsgroup.com>
- Date: Thu, 13 Dec 2007 09:05:51 -0800
- YES, YES, YES! It is VERY instructive to build an NEC model of a simple antenna like a vertical, then add the feedlines to other antennas around it, and study the resulting pattern. I did that, and s
- /archives//html/Topband/2007-12/msg00109.html (8,519 bytes)
- 5. Re: Topband: Vertical array (score: 1)
- Author: "Joe Subich, W4TV" <w4tv@subich.com>
- Date: Thu, 13 Dec 2007 12:46:27 -0500
- Mike, This is a perfect application for a box like the MFJ "noise canceller" or the DX Engineering "Noise Canceling Controller" with a pair (or three) active antennas. Three antennas (one common, the
- /archives//html/Topband/2007-12/msg00110.html (8,284 bytes)
- 6. Re: Topband: Vertical array (score: 1)
- Author: Terry Conboy <n6ry@arrl.net>
- Date: Thu, 13 Dec 2007 10:31:29 -0800
- At 10:01 PM 2007-12-12, Lee K7TJR wrote, in part: Are there any data on the arrival angles of stateside signals on 160m? I'm no propagation expert, but when looking at the numbers that are shown in W
- /archives//html/Topband/2007-12/msg00111.html (8,307 bytes)
- 7. Topband: Vertical array (score: 1)
- Author: "Lee K7TJR" <k7tjr@msn.com>
- Date: Thu, 13 Dec 2007 14:30:08 -0800
- phase by a small amount my simple mind said: I don't know the angle at which local interference arrives. The only thing I can guestimate is the arrival angle of stateside & DX signals, therefore I c
- /archives//html/Topband/2007-12/msg00112.html (10,504 bytes)
- 8. Re: Topband: Vertical array (score: 1)
- Author: "Mike(W5UC) & Kathy(K5MWH)" <w5uc@suddenlink.net>
- Date: Thu, 13 Dec 2007 16:49:54 -0600
- Good Evening All: My goodness! What a great collection of inputs, many about devices I was unaware existed. The MFJ devices might be a solution. Others mentioned are priced at levels that are totally
- /archives//html/Topband/2007-12/msg00113.html (8,405 bytes)
- 9. Re: Topband: Vertical array (score: 1)
- Author: "Tod -MN" <tod@k0to.us>
- Date: Thu, 13 Dec 2007 17:35:02 -0600
- Joe: Have you actually tried this or is it a thought that ought to work? If you have tried it I am curious to know how you handled the injection of signals [from the choice of three]. I own the NCC-
- /archives//html/Topband/2007-12/msg00114.html (10,343 bytes)
- 10. Re: Topband: Vertical array (score: 1)
- Author: "Rick Karlquist" <richard@karlquist.com>
- Date: Thu, 13 Dec 2007 17:03:17 -0800 (PST)
- My beverages show high directivity for all signals from ground wave 5 miles away to the longest DX. They are possibly somewhat less directive around sunrise. As always, YMMV. Rick N6RK ______________
- /archives//html/Topband/2007-12/msg00116.html (8,433 bytes)
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