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121. [AMPS] Enough of The Worldwide, No Holds Barred, SWR Quiz. (score: 1): Author: jono@enteract.com (Jon Ogden); Date: Mon, 4 Oct 1999 23:35:36 -0500; I don't think there is any Jihad going on here. No one is calling anyone names and it is a civil discussion. The fact is that some people have had some questions and misunderstandings about the natur; /archives//html/Amps/1999-10/msg00175.html (8,330 bytes)
122. [AMPS] WWQuiz - anyone go to work today ?. (score: 1): Author: jono@enteract.com (Jon Ogden); Date: Mon, 4 Oct 1999 23:36:02 -0500; No, we just played in the office! :-) 73, Jon KE9NA -- Jon Ogden KE9NA http://www.qsl.net/ke9na <-- CHECK IT OUT! It's been updated!!!!! "A life lived in fear is a life half lived." -- FAQ on WWW: ht; /archives//html/Amps/1999-10/msg00176.html (7,415 bytes)
123. [AMPS] SWR and line length, etc. (score: 1): Author: jono@enteract.com (Jon Ogden); Date: Tue, 5 Oct 99 08:37:34 -0500; That's correct. An antenna's S11 plot can vary all over the place. And yes, the lowest SWR will be at the point of least reactance, but not necessarily zero reactance. As a matter of fact, a point wi; /archives//html/Amps/1999-10/msg00188.html (8,752 bytes)
124. [AMPS] Re: The Worldwide, No Holds Barred, SWR Quiz. (score: 1): Author: jono@enteract.com (Jon Ogden); Date: Tue, 5 Oct 99 08:46:33 -0500; YES!!!! ARRGH! Do you just reply to posts and not read them? Come on, Rich. Read a little more carefully. Jon KE9NA -- The Second Amendment is NOT about duck hunting! Jon Ogden jono@enteract.com www.; /archives//html/Amps/1999-10/msg00189.html (9,279 bytes)
125. [AMPS] I don't get it! (score: 1): Author: jono@enteract.com (Jon Ogden); Date: Tue, 5 Oct 99 08:58:25 -0500; I don't get it. People complain about the fact that ham radio is no longer a technical hobby - that all we are is appliance operators. Yet when a technical discussion ensues where they can learn som; /archives//html/Amps/1999-10/msg00190.html (9,410 bytes)
126. [AMPS] Re: The Worldwide, No Holds Barred, SWR Quiz. (score: 1): Author: jono@enteract.com (Jon Ogden); Date: Tue, 5 Oct 99 11:54:30 -0500; Only, if the transmission line was 50 Ohms and the load was of a different impedance (ie: a 100 Ohm load on a 50 Ohm transmission line measured with a 50 Ohm instrument). A half wave transmission lin; /archives//html/Amps/1999-10/msg00200.html (9,597 bytes)
127. [AMPS] SWR WARS - The Impedance Strikes Back (score: 1): Author: jono@enteract.com (Jon Ogden); Date: Tue, 5 Oct 99 14:45:48 -0500; Mike, It sounds like you have it pretty good. Yes, there is a standing wave on that 93 Ohm cable. But if you take the cable and 50 Ohm load as the black box that you orignally started with we see it'; /archives//html/Amps/1999-10/msg00204.html (8,141 bytes)
128. [AMPS] Hold on - SWR meter placement (score: 1): Author: jono@enteract.com (Jon Ogden); Date: Wed, 6 Oct 99 13:25:00 -0500; Thank you. In the real world, perhaps not. But everything specified has been ideal. In the real world, we have things such as imperfections in our cables causing impedance discontinuities, we have PL; /archives//html/Amps/1999-10/msg00233.html (9,234 bytes)
129. [AMPS] Zo of SWR meters (score: 1): Author: jono@enteract.com (Jon Ogden); Date: Wed, 6 Oct 99 13:28:57 -0500; I am afriad though that you can't necessarily rely on those ratios can you? Because there is an impedance discontinuity at the interface on each side of the meter. So are you really measuring the for; /archives//html/Amps/1999-10/msg00234.html (7,776 bytes)
130. [AMPS] Hold on - SWR meter placement (score: 1): Author: jono@enteract.com (Jon Ogden); Date: Thu, 7 Oct 1999 21:54:13 -0500; Yes. It's been about 10 to 12 years ago in a measurements class in college. Back then the 8510B was the best network analyzer HP made. We began the class with the concept of impedance and VSWR measur; /archives//html/Amps/1999-10/msg00275.html (11,733 bytes)
131. [AMPS] Ground rods? (score: 1): Author: jono@enteract.com (Jon Ogden); Date: Thu, 7 Oct 1999 21:57:07 -0500; And an old wives tale of the commercial communication industry as well, huh Rich? Of course if the soil is "moist" there is no problem with the ground as moist soil provides the lossy conductivity on; /archives//html/Amps/1999-10/msg00276.html (8,787 bytes)
132. [AMPS] Hold on - SWR meter placement (score: 1): Author: jono@enteract.com (Jon Ogden); Date: Thu, 7 Oct 1999 21:58:01 -0500; What is "less than perfect" SWR, Rich? I thought SWR was a ratio of max voltage to min voltage on the line. What is meant by "less than perfect"? Jon KE9NA -- Jon Ogden KE9NA http://www.qsl.net/ke9na; /archives//html/Amps/1999-10/msg00277.html (8,920 bytes)
133. [AMPS] Ground rods? (score: 1): Author: jono@enteract.com (Jon Ogden); Date: Fri, 8 Oct 99 09:18:01 -0500; I guess what I was reacting against what RIch was saying that you don't need a long ground rod. For HF grounding, he's correct. I didn't dissect his post carefully enough. For ELECTRICAL (DC) and lig; /archives//html/Amps/1999-10/msg00293.html (8,886 bytes)
134. [AMPS] Hold on - SWR meter placement (score: 1): Author: jono@enteract.com (Jon Ogden); Date: Fri, 8 Oct 99 09:40:54 -0500; perfect"? Actually, now that I re-read your original comment, I agree and disagree. With VSWR of greater than 1:1, the voltage on the line does vary with position. I thought I said that when I talked; /archives//html/Amps/1999-10/msg00294.html (10,042 bytes)
135. [AMPS] Hold on - SWR meter placement (score: 1): Author: jono@enteract.com (Jon Ogden); Date: Fri, 8 Oct 99 09:52:42 -0500; Still insisting on YOUR wives tale, Rich? All the rest of us and all of the textbooks that talk about VSWR are wrong? Look at it another way. If I run 100 Watts into a transmission line that is LOSSL; /archives//html/Amps/1999-10/msg00295.html (10,297 bytes)
136. [AMPS] Answers to Maurizio's quiz (score: 1): Author: jono@enteract.com (Jon Ogden); Date: Fri, 8 Oct 99 10:02:24 -0500; Well, I am finally ready to give public answers to Maurizio's quiz. 100 Watt signal this is 88.9 Watts. reflection took place at the 50/100 Ohm interface. Therefore, to the reflected waves which have; /archives//html/Amps/1999-10/msg00296.html (10,718 bytes)
137. [AMPS] Hold on - SWR meter placement (score: 1): Author: jono@enteract.com (Jon Ogden); Date: Fri, 8 Oct 99 10:27:51 -0500; OOPS! This message was not meant to be posted! It was sent accidentally! 73, Jon KE9NA -- The Second Amendment is NOT about duck hunting! Jon Ogden jono@enteract.com www.qsl.net/ke9na "A life lived; /archives//html/Amps/1999-10/msg00298.html (9,927 bytes)
138. [AMPS] Hold on - SWR meter placement (score: 1): Author: jono@enteract.com (Jon Ogden); Date: Mon, 11 Oct 1999 10:20:19 -0500; Bob, The voltage on a coax due to an RF signal is a sinusoidal voltage whose period is 1/F. As with any sinusoid, the voltage of the signal varies over the course of its cycle. In a situation with a; /archives//html/Amps/1999-10/msg00364.html (8,767 bytes)
139. [AMPS] THE SWR FINAL EXAM! (score: 1): Author: jono@enteract.com (Jon Ogden); Date: Mon, 11 Oct 1999 11:04:55 -0500; OK, Now, for the FINAL exam on SWR: Joe Ham has a brand new amplifier that he plans to use exclusively on 14.225 MHz. His antenna is a beam that does not have the best match at 14.225 MHz. Therefore,; /archives//html/Amps/1999-10/msg00367.html (8,997 bytes)
140. [AMPS] More Relevant SWR FINAL EXAM (score: 1): Author: jono@enteract.com (Jon Ogden); Date: Mon, 11 Oct 1999 13:34:38 -0500; Rich, you don't know much about RF, do you? An isolator is a device that is typically used at higher frequencies than HF that effectively makes any load "look" like 50 Ohms. Now I KNOW you'll find so; /archives//html/Amps/1999-10/msg00378.html (9,848 bytes)

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