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References: [ +subject:/^(?:^\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*)*\[TenTec\]\s+Field\s+day\s+antennas\s*$/: 35 ]

Total 35 documents matching your query.

21. Re: [TenTec] Field day antennas (score: 1)
Author: "Rick - DJ0IP / NJ0IP" <Rick@DJ0IP.de>
Date: Thu, 16 Apr 2015 08:39:26 +0200
Stuart, Were those lazy loops or vertical (plane) loops? 73 - Rick, DJ0IP (Nr. Frankfurt am Main) Ralph, Here in CenTEX we did a several year evaluation of loops for FD, using the 75 m loop on up at
/archives//html/TenTec/2015-04/msg00160.html (10,598 bytes)

22. Re: [TenTec] Field day antennas (score: 1)
Author: Jim Brown <k9yc@audiosystemsgroup.com>
Date: Thu, 16 Apr 2015 00:13:57 -0700
A connection to earth has NOTHING to do with EMC, RFI, or interstation interference. Yes, common mode is damned important, and so is separation. 73, Jim K9YC _________________________________________
/archives//html/TenTec/2015-04/msg00161.html (10,050 bytes)

23. Re: [TenTec] Field day antennas (score: 1)
Author: "Rick - DJ0IP / NJ0IP" <Rick@DJ0IP.de>
Date: Thu, 16 Apr 2015 09:30:17 +0200
The OCFD is a compromise antenna for someone wanting a simple, single wire antenna that runs all bands and does not need an expensive matchbox. It is not the antenna of choice for those trying to win
/archives//html/TenTec/2015-04/msg00162.html (14,596 bytes)

24. Re: [TenTec] Field day antennas (score: 1)
Author: Jim Brown <k9yc@audiosystemsgroup.com>
Date: Thu, 16 Apr 2015 00:34:28 -0700
BS. Everything is 50 ohms ONLY at the fundamental frequency for the antenna. At ANY other frequency, everything, both transmitter and antenna, is VERY different from 50 ohms resistive. For the CA QSO
/archives//html/TenTec/2015-04/msg00163.html (11,150 bytes)

25. Re: [TenTec] Field day antennas (score: 1)
Author: Jim Brown <k9yc@audiosystemsgroup.com>
Date: Thu, 16 Apr 2015 00:53:15 -0700
Several years ago, I modeled a 40M OFCD dipole with offsets varying from a foot increments of a few feet to a lot more, and dissipation in a practical choke inline with these antennas. The results ar
/archives//html/TenTec/2015-04/msg00164.html (10,212 bytes)

26. Re: [TenTec] Field day antennas (score: 1)
Author: "Rick - DJ0IP / NJ0IP" <Rick@DJ0IP.de>
Date: Thu, 16 Apr 2015 10:58:11 +0200
Jim I do not question the results of your modeling. I also appreciate the difficulty trying to find things late at night when tired. I'm younger than you are and I struggle and make mistakes! (hi) I
/archives//html/TenTec/2015-04/msg00165.html (17,608 bytes)

27. Re: [TenTec] Field day antennas (score: 1)
Author: Don Jones <ko7i@comcast.net>
Date: Thu, 16 Apr 2015 07:59:32 -0700
It worked for us.  Sent from my Verizon Wireless 4G LTE smartphone A connection to earth has NOTHING to do with EMC, RFI, or interstation interference. Yes, common mode is damned important, and so is
/archives//html/TenTec/2015-04/msg00169.html (8,947 bytes)

28. Re: [TenTec] Field day antennas (score: 1)
Author: Don Jones <ko7i@comcast.net>
Date: Thu, 16 Apr 2015 08:48:29 -0700
Sorry for taking to the field or sharing here what works for me in my EMC/Lightning Lab on a daily basis. We make tens of thousands of dollars every year off those who fail to ground properly. That f
/archives//html/TenTec/2015-04/msg00170.html (11,375 bytes)

29. Re: [TenTec] Field day antennas (score: 1)
Author: Jim Brown <k9yc@audiosystemsgroup.com>
Date: Thu, 16 Apr 2015 10:50:21 -0700
On Thu,4/16/2015 8:48 AM, Don Jones wrote: Sorry for taking to the field or sharing here what works for me in my EMC/Lightning Lab on a daily basis. We make tens of thousands of dollars every year of
/archives//html/TenTec/2015-04/msg00171.html (14,548 bytes)

30. Re: [TenTec] Field day antennas (score: 1)
Author: Stuart Rohre <rohre@arlut.utexas.edu>
Date: Thu, 16 Apr 2015 15:02:34 -0500
Rick, Those W5KA FD loops, were horizontal plane loops, straight legs run from support to support. Supports varied from tower section, to slip up mast to out of service wood utility pole(s). They wer
/archives//html/TenTec/2015-04/msg00173.html (10,037 bytes)

31. Re: [TenTec] Field day antennas (score: 1)
Author: "Rick - DJ0IP / NJ0IP" <Rick@DJ0IP.de>
Date: Thu, 16 Apr 2015 22:10:15 +0200
OK, fb Stuart. At first I thought you were referring to vertical loops, then I wasn't certain. These are indeed fantastic antennas with respect to their cost and simplicity, if you have space and 4 (
/archives//html/TenTec/2015-04/msg00174.html (11,282 bytes)

32. Re: [TenTec] Field day antennas (score: 1)
Author: Don Jones <ko7i@comcast.net>
Date: Thu, 16 Apr 2015 14:13:21 -0700
BS? Wow... I think you would benefit from reading W2VJN article recently published in the NCJ. But the would require you to get off the fricken throne to go find it. But then you have it all figured
/archives//html/TenTec/2015-04/msg00176.html (10,398 bytes)

33. Re: [TenTec] Field day antennas (score: 1)
Author: Jim Brown <k9yc@audiosystemsgroup.com>
Date: Thu, 16 Apr 2015 14:41:01 -0700
Hi Don, I did read the NCJ article. Some of it is great, but some of it is wrong. Specifically this -- the standing wave pattern on the line is determined by the LOAD Z, which varies WIDELY with freq
/archives//html/TenTec/2015-04/msg00177.html (12,477 bytes)

34. Re: [TenTec] Field day antennas (score: 1)
Author: Jim Brown <k9yc@audiosystemsgroup.com>
Date: Thu, 16 Apr 2015 14:46:17 -0700
I meant to write, Depending on height and soil, it's in the range" 73, Jim K9YC _______________________________________________ TenTec mailing list TenTec@contesting.com http://lists.contesting.com/m
/archives//html/TenTec/2015-04/msg00178.html (9,442 bytes)

35. Re: [TenTec] Field day antennas (score: 1)
Author: Don Jones <ko7i@comcast.net>
Date: Sun, 19 Apr 2015 07:29:30 -0700
It is hard to debate and discuss typing with one thumb onto a cell phone. At field day we use a tri-plexers to drive a trip band yagis and have found the use of coaxial stubs to be extremely helpful.
/archives//html/TenTec/2015-04/msg00186.html (9,755 bytes)

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