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61. Re: [Amps] Measuring RF Power (score: 1): Author: Gary Schafer <garyschafer@comcast.net>; Date: Sat, 26 Mar 2005 14:35:20 -0500; Since there seems to still be some confusion on the subject here is a nice article written by Roy Lewallen W7EL, the author of eznec software. He explains "RMS" power in layman's terms. A very good r; /archives//html/Amps/2005-03/msg00586.html (9,159 bytes)
62. Re: [Amps] Measuring RF Power (score: 1): Author: G3rzp@aol.com; Date: Sat, 26 Mar 2005 17:14:19 EST; Many years ago ( more than I really wish to remember, but this discussion has reminded me) we sat ina class in college and drew a graph of Irms times V rs to get rs power, and as I remember, it looke; /archives//html/Amps/2005-03/msg00588.html (8,342 bytes)
63. Re: [Amps] Measuring RF Power (score: 1): Author: David Kirkby <david.kirkby@onetel.net>; Date: Sun, 27 Mar 2005 00:04:59 +0000; I must agree with your Gary, that is well written, in a way that is pretty easy for anyone with a very modest knowledge to understand. You don't need calculus knowledge as you do to fully understand; /archives//html/Amps/2005-03/msg00590.html (10,389 bytes)
64. Re: [Amps] Measuring RF Power (score: 1): Author: "Michael Tope" <W4EF@dellroy.com>; Date: Sat, 26 Mar 2005 16:40:27 -0800; Okay, David, I'll bite (I am among the 99%, I guess). Are you referring to the highest frequency component of a modulated carrier or the information bandwidth of a modulated signal? If the former, I; /archives//html/Amps/2005-03/msg00592.html (9,177 bytes)
65. [Amps] MEASURING RF POWER (score: 1): Author: John and Mary Powell <zl1bhq@paradise.net.nz>; Date: Sun, 27 Mar 2005 13:23:40 +1200; Is there a body of opinion out there that considers the above subject has gone on far too long, or got out of hand. To me it appears as if academic intransigence has got in the way of the Reflector d; /archives//html/Amps/2005-03/msg00593.html (8,119 bytes)
66. Re: [Amps] Measuring RF Power (score: 1): Author: David Kirkby <david.kirkby@onetel.net>; Date: Sun, 27 Mar 2005 02:31:58 +0100; Well you are not amongst the 99%, but the 1%, as most people are not aware that you only need to sample at twice the *bandwidth* of the signal, and not twice the highest frequency. Ask many engineers; /archives//html/Amps/2005-03/msg00594.html (10,000 bytes)
67. Re: [Amps] MEASURING RF POWER (score: 1): Author: Gary Schafer <garyschafer@comcast.net>; Date: Sat, 26 Mar 2005 22:32:26 -0500; It certainly is on topic. After all "AMPS" is all about making power. What is the point of making power if you don't know how or what you are measuring. Being a participant in the thread I am rather; /archives//html/Amps/2005-03/msg00595.html (9,199 bytes)
68. Re: [Amps] MEASURING RF POWER (score: 1): Author: G3rzp@aol.com; Date: Sun, 27 Mar 2005 03:22:35 EST; Or maybe some would just like it quiet with no discussions at all? Or maybe anything other than a very basic simplified answer is too advanced for some people? Far more advanced fora than this have s; /archives//html/Amps/2005-03/msg00596.html (8,042 bytes)
69. Re: [Amps] Measuring RF Power (score: 1): Author: David Kirkby <david.kirkby@onetel.net>; Date: Sun, 27 Mar 2005 13:33:56 +0100; John and Mary Powell wrote in a different thread: I'm not keen on a thread being split up for no good reason. Someone started this thread with the title 'Measuring RF Power' and so why ZL1BHQ starts; /archives//html/Amps/2005-03/msg00599.html (12,935 bytes)
70. Re: [Amps] MEASURING RF POWER (score: 1): Author: R.Measures <r@somis.org>; Date: Sun, 27 Mar 2005 05:06:34 -0800; Good points, John, but we learned one thing totally new -- i. e ., that RMS volts times RMS amperes do not equal RMS watts. Also, we learned that Bird® Model 43 wattmeters measure watts directly; /archives//html/Amps/2005-03/msg00600.html (9,067 bytes)
71. Re: [Amps] Measuring RF Power (score: 1): Author: R.Measures <r@somis.org>; Date: Sun, 27 Mar 2005 05:40:55 -0800; ... chortle As I see it, a more meaningful measurement is what effect an amplifier has on S-meter readings. Experience has taught me that a 20db change in PEP does not always produce 20db more or les; /archives//html/Amps/2005-03/msg00601.html (12,245 bytes)
72. Re: [Amps] Measuring RF Power (score: 1): Author: David Kirkby <david.kirkby@onetel.net>; Date: Sun, 27 Mar 2005 16:32:56 +0100; It's just childishness to hang on to an argument if you know you are wrong. There is nothing wrong with not knowing that RMS power and mean power were the same. I have freely admitted that I'd never; /archives//html/Amps/2005-03/msg00602.html (15,304 bytes)
73. Re: [Amps] Measuring RF Power (score: 1): Author: R.Measures <r@somis.org>; Date: Sun, 27 Mar 2005 08:13:11 -0800; I have observed that the tightest-gripped hanger-on-ers are not children PhD diplomas are available on the Internet these days. One of the most ohm's law-ignorant Hams I ever met told me that he had; /archives//html/Amps/2005-03/msg00603.html (11,939 bytes)
74. [Amps] Measuring RF Power (score: 1): Author: "Bob Maser" <bmaser@tampabay.rr.com>; Date: Sun, 27 Mar 2005 11:28:38 -0500; Haven't we all heard enough about measuring RF power? Who cares. Too much power is just enough. _______________________________________________ Amps mailing list Amps@contesting.com http://lists.cont; /archives//html/Amps/2005-03/msg00604.html (7,570 bytes)
75. Re: [Amps] Measuring RF Power (score: 1): Author: David Kirkby <david.kirkby@onetel.net>; Date: Sun, 27 Mar 2005 18:00:28 +0100; I would have at one time thought they were totally worthless to in the individual that obtained them. But I see on the TV recently of someone writing a book about some diet. She had no medical traini; /archives//html/Amps/2005-03/msg00605.html (11,583 bytes)
76. Re: [Amps] MEASURING RF POWER (score: 1): Author: "Gary Smith" <wa6fgi@sbcglobal.net>; Date: Sun, 27 Mar 2005 09:29:03 -0800; My .twenty-five cents worth: I see this forum as a "learning place" for me. There have been some way-over-my-head opinions and mathematical formulas expressed here that I do not need and probably wil; /archives//html/Amps/2005-03/msg00606.html (10,374 bytes)
77. Re: [Amps] Measuring RF Power (score: 1): Author: PA3DUV <pa3duv@planet.nl>; Date: Sun, 27 Mar 2005 19:33:21 +0200; Hey Rich, at your age I would take that as a compliment ;-)) Regards, Dick PA3DUV _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/ma; /archives//html/Amps/2005-03/msg00607.html (9,314 bytes)
78. Re: [Amps] Measuring RF Power (score: 1): Author: Alek Petkovic <vk6apk@eon.net.au>; Date: Mon, 28 Mar 2005 20:54:52 +0800; It is surely the best thread we have seen on this reflector in a long long time. Very comprehensive, informative and lots of fun to follow. Thanks to all, Alek. VK6APK http://www.qrz.com/vk6apk http:; /archives//html/Amps/2005-03/msg00627.html (14,551 bytes)
79. Re: [Amps] Measuring RF Power (score: 1): Author: "Dr. William J. Schmidt, II" <bill@wjschmidt.com>; Date: Mon, 28 Mar 2005 08:39:21 -0600; I agree.... Lots of good discussion. Sincerely, Dr. William J. Schmidt, II K9HZ Trustee of the North American QRO - Central Division Club - K9ZC Email: bill@wjschmidt.com WebPage: www.wjschmidt.com "; /archives//html/Amps/2005-03/msg00629.html (16,384 bytes)
80. Re: [Amps] Measuring RF Power (score: 1): Author: Bill Fuqua <wlfuqu00@uky.edu>; Date: Mon, 28 Mar 2005 10:29:42 -0500; I think if we just package all the emails about this subject and keep the "package" attachment handy for the next time this comes up just send it to the person with the question instead of going thru; /archives//html/Amps/2005-03/msg00630.html (17,772 bytes)

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