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References: [ +subject:/^(?:^\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*)*\[RFI\]\s+Balanced\-line\s+antennas\s+and\s+couplers\s*$/: 12 ]

Total 12 documents matching your query.

1. Re: [RFI] Balanced-line antennas and couplers (score: 1): Author: "Kenneth G. Gordon" <kgordon2006@frontier.com>; Date: Fri, 05 Aug 2016 07:30:00 -0700; Yes. Got any recommendations on which to use? There are at least a couple of schematics and articles on home-built units on the web. What do you use? I have a link-coupled home-brew balanced coupler; /archives//html/RFI/2016-08/msg00026.html (7,511 bytes)
2. Re: [RFI] Balanced-line antennas and couplers (score: 1): Author: Danny Richardson <k6mhe@k6mhe.com>; Date: Fri, 5 Aug 2016 08:49:52 -0700; Identical current indication on a matched pair of thermocouple RF amp meters do not necessarily mean the transmission is balanced as the current magnitudes might be equal but the 180º phase differenc; /archives//html/RFI/2016-08/msg00027.html (8,807 bytes)
3. Re: [RFI] Balanced-line antennas and couplers (score: 1): Author: Rob Atkinson <ranchorobbo@gmail.com>; Date: Fri, 5 Aug 2016 11:46:28 -0500; It's a bit tricky because the current range depends on the impedance of the line at the test frequency and where you are in the line. I don't now how to predict what that will be at the insertion poi; /archives//html/RFI/2016-08/msg00028.html (10,645 bytes)
4. Re: [RFI] Balanced-line antennas and couplers (score: 1): Author: Rob Atkinson <ranchorobbo@gmail.com>; Date: Fri, 5 Aug 2016 12:20:28 -0500; I think I read that paper years ago. Since this is the RFI list and not the parallel line list I don't want to drag this out. That's a paper about trying to use baluns to force a balance on line. A l; /archives//html/RFI/2016-08/msg00031.html (7,780 bytes)
5. Re: [RFI] Balanced-line antennas and couplers (score: 1): Author: Jim Brown <jim@audiosystemsgroup.com>; Date: Fri, 5 Aug 2016 10:42:56 -0700; But phase is an important part of "equal and opposite." The fields around the conductors cancel ONLY if they are equalin magnitudeand opposite in phase. Danny is exactly right -- a measurement that i; /archives//html/RFI/2016-08/msg00032.html (8,535 bytes)
6. Re: [RFI] Balanced-line antennas and couplers (score: 1): Author: Michael Clarson <wv2zow@gmail.com>; Date: Fri, 5 Aug 2016 15:23:35 -0400; Rob: I once had a problem with 43 MHz paging transmitter getting into an MATV system at a Gentleman's Club (no, not that kind, but the kind with leather chairs, cigars, and old guys reading the Finan; /archives//html/RFI/2016-08/msg00034.html (8,760 bytes)
7. Re: [RFI] Balanced-line antennas and couplers (score: 1): Author: Cortland Richmond <ka5s@earthlink.net>; Date: Sat, 6 Aug 2016 06:13:14 -0400; IF -- this is not always *necessary* -- we want to see if currents in a 2-wire feedline are unbalanced, I think a symmetrically placed ferrite core of appropriate diameter around BOTH conductors, wit; /archives//html/RFI/2016-08/msg00035.html (9,286 bytes)
8. Re: [RFI] Balanced-line antennas and couplers (score: 1): Author: Rob Atkinson <ranchorobbo@gmail.com>; Date: Sun, 7 Aug 2016 17:47:21 -0500; Excellent points. identical toroidal coils as pickups, one on each side and at the same location is an excellent way to go. they can feed a dual trace scope and you can see both phase and amplitude.; /archives//html/RFI/2016-08/msg00041.html (7,853 bytes)
9. Re: [RFI] Balanced-line antennas and couplers (score: 1): Author: Donald Chester <k4kyv@hotmail.com>; Date: Mon, 8 Aug 2016 01:33:03 +0000; Regarding thermocouple RF ammeters, from my experience the calibration between two identical meters (same range, same manufacturer, same type number) can vary considerably. The best way to check is t; /archives//html/RFI/2016-08/msg00043.html (12,459 bytes)
10. Re: [RFI] Balanced-line antennas and couplers (score: 1): Author: Edward McCann via RFI <rfi@contesting.com>; Date: Sun, 7 Aug 2016 19:44:04 -0700; Don: Nice report! Could you address the difference between "tuned" and "untuned" feeders to which refer. I have yet to read a description of this phenomena or technique that I can honestly say I full; /archives//html/RFI/2016-08/msg00044.html (14,509 bytes)
11. Re: [RFI] Balanced-line antennas and couplers (score: 1): Author: Donald Chester <k4kyv@hotmail.com>; Date: Mon, 8 Aug 2016 04:18:39 +0000; "Tuned feedline" means the load on the transmission line is different from the surge impedance, so it operates with substantial standing waves and normally must be used with some kind of a tuner. Th; /archives//html/RFI/2016-08/msg00045.html (9,354 bytes)
12. Re: [RFI] Balanced-line antennas and couplers (score: 1): Author: "Roger (K8RI)" <k8ri@rogerhalstead.com>; Date: Wed, 10 Aug 2016 21:43:47 -0400; You can get the currents equal, but isn't phase also important? 73 Roger (K8RI) On 8/8/2016 Monday 12:18 AM, Donald Chester wrote: Edward McCann <edwmccann@yahoo.com wrote: Could you address the diff; /archives//html/RFI/2016-08/msg00068.html (10,256 bytes)

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