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141. [AMPS] THE SWR FINAL EXAM! (score: 1): Author: jono@enteract.com (Jon Ogden); Date: Tue, 12 Oct 99 09:41:17 -0500; It looks good. Two of you have basically sent the same answers of 1.967:1 for the VSWR. I guess that's exact. I was using a Smith Chart and got 2:1 for the VSWR which is pretty close. 2:1 was what I; /archives//html/Amps/1999-10/msg00400.html (7,468 bytes)
142. [AMPS] More Relevant SWR FINAL EXAM (score: 1): Author: jono@enteract.com (Jon Ogden); Date: Tue, 12 Oct 99 09:54:35 -0500; No characteristic Z huh, Rich? Or perhaps you just didn't know what that characteristic Z was? A waveguide has a characteristic impedance at a given frequency. The math is a little too complicated to; /archives//html/Amps/1999-10/msg00402.html (10,631 bytes)
143. [AMPS] Re:More Relevant SWR FINAL EXAM (score: 1): Author: jono@enteract.com (Jon Ogden); Date: Tue, 12 Oct 99 09:58:26 -0500; Hi Jim, Well, I don't know how big it would be! The ferrite pieces would indeed be huge and probably pretty lossy. In fact, the garnets (a special type of ferrite) probably couldn't be manufactured.; /archives//html/Amps/1999-10/msg00403.html (8,087 bytes)
144. [AMPS] Dead Horse (not yet) (score: 1): Author: jono@enteract.com (Jon Ogden); Date: Tue, 12 Oct 99 10:02:06 -0500; Yes it is obfuscation! And it even caught me and I noticed it. Unfortunately, I accidentally sent out a post criticizing guy two's position (it was written before I caught my error, but was accidenta; /archives//html/Amps/1999-10/msg00404.html (8,509 bytes)
145. [AMPS] Dead Horse (not yet) (score: 1): Author: jono@enteract.com (Jon Ogden); Date: Tue, 12 Oct 99 10:55:47 -0500; OK, I see what you are saying. The voltage ALONG the line IS constantly changing. The signal is in the form of a sinusoid. However, for a specific point on the line, the voltage does not change, henc; /archives//html/Amps/1999-10/msg00407.html (7,958 bytes)
146. [AMPS] More Relevant SWR FINAL EXAM (score: 1): Author: jono@enteract.com (Jon Ogden); Date: Tue, 12 Oct 99 11:26:01 -0500; Very possible with waveguide. 73, Jon KE9NA -- The Second Amendment is NOT about duck hunting! Jon Ogden jono@enteract.com www.qsl.net/ke9na "A life lived in fear is a life half lived." -- FAQ on WWW; /archives//html/Amps/1999-10/msg00410.html (9,141 bytes)
147. [AMPS] More Relevant SWR FINAL EXAM (score: 1): Author: jono@enteract.com (Jon Ogden); Date: Wed, 13 Oct 1999 19:17:29 -0500; According to the textbook that I quoted from the characteristic impedance of a waveguide is typically unity. I quoted that in my post to you previously. If you wish for me to quote again the referenc; /archives//html/Amps/1999-10/msg00435.html (8,878 bytes)
148. [AMPS] More Relevant SWR FINAL EXAM (score: 1): Author: jono@enteract.com (Jon Ogden); Date: Wed, 13 Oct 1999 19:36:44 -0500; Rich, I forgot to also ask you. Which waveguide mode do you want the impedance for? And is the waveguide below or above cutoff for that mode? Also, is the waveguide dielectrically loaded or is it air; /archives//html/Amps/1999-10/msg00436.html (8,742 bytes)
149. [AMPS] You gotta read this.... (score: 1): Author: jono@enteract.com (Jon Ogden); Date: Wed, 13 Oct 1999 23:18:03 -0500; I hope they had lead shielding on the tube housings. I believe that above 10KV, tubes begin to emit plenty of X-Rays. And they coax they had to handle this is??? I know that B-cast transmitters use s; /archives//html/Amps/1999-10/msg00443.html (8,934 bytes)
150. [AMPS] Re: Our CB Brethren! (score: 1): Author: jono@enteract.com (Jon Ogden); Date: Thu, 14 Oct 99 14:27:08 -0500; I don't either. But as far as I say, let them continue to use 10KV, 15KV, 20KV, etc on their tubes. The X-ray emmission will eventually fry them and Darwins principle of natural selection will work i; /archives//html/Amps/1999-10/msg00461.html (8,518 bytes)
151. R: [AMPS] You gotta read this.... (score: 1): Author: jono@enteract.com (Jon Ogden); Date: Thu, 14 Oct 99 14:43:30 -0500; Great! We'll bring the FCC and the local police as well! -- The Second Amendment is NOT about duck hunting! Jon Ogden jono@enteract.com www.qsl.net/ke9na "A life lived in fear is a life half lived."; /archives//html/Amps/1999-10/msg00463.html (7,762 bytes)
152. [AMPS] Re: Our CB Brethren! (score: 1): Author: jono@enteract.com (Jon Ogden); Date: Thu, 14 Oct 99 16:08:05 -0500; Well, we engage in tug of wars on AMPS everyday! And while gunny sacks might not be the right terms, there are plent of sacks of other stuff floated around here sometimes! 73, Jon KE9NA -- The Second; /archives//html/Amps/1999-10/msg00467.html (8,274 bytes)
153. [AMPS] Re: Our CB Brethren! (score: 1): Author: jono@enteract.com (Jon Ogden); Date: Fri, 15 Oct 99 08:43:11 -0500; Well for that matter, why don't they just use big dummy loads then to key into instead of antennas? That way, it's legal then and they aren't interfering with anyone else. I'd have no problem with th; /archives//html/Amps/1999-10/msg00494.html (8,673 bytes)
154. [AMPS] More CB Brethren (score: 1): Author: jono@enteract.com (Jon Ogden); Date: Fri, 15 Oct 99 09:23:54 -0500; I must admit that these guys building the amps aren't the usual CB mud ducks. I think most CBers would kill themselves with that much power! I funny story that reflects the way most CBers are was tol; /archives//html/Amps/1999-10/msg00497.html (9,038 bytes)
155. [AMPS] Re: Our CB Brethren! (score: 1): Author: jono@enteract.com (Jon Ogden); Date: Fri, 15 Oct 99 14:33:03 -0500; I didn't know these guys were running 800K. I thought it was 80k. That's what was reported. You could easily make one that handles 80K. I can even provide the terminations (at a price or course) as o; /archives//html/Amps/1999-10/msg00508.html (8,903 bytes)
156. [AMPS] Re: FYI...Titan II (For Steve) (score: 1): Author: jono@enteract.com (Jon Ogden); Date: Mon, 18 Oct 99 09:16:41 -0500; There IS an antenna called a Titan made by a German company. It's a 160 and 80 M vertical about 80 feet high! I've seen pictures. Pretty wild antenna. That's likely the source of confusion. 73, Jon K; /archives//html/Amps/1999-10/msg00530.html (7,292 bytes)
157. [AMPS] source for Arco 426 trimmers? (score: 1): Author: jono@enteract.com (Jon Ogden); Date: Mon, 18 Oct 1999 22:58:17 -0500; Sprague Capacitors still manufacture and sell compression style trimmers. Not sure what they cross to Arco, but you may wish to check them out. I think the web url is www.sprague.com. 73, Jon KE9NA -; /archives//html/Amps/1999-10/msg00539.html (7,378 bytes)
158. [AMPS] Looking for Caddock resistors source (score: 1): Author: jono@enteract.com (Jon Ogden); Date: Sun, 24 Oct 1999 23:49:07 -0500; I forget who their distributors are. They might give you a few samples. It worked for me. What values do you need? I have a couple of 1 Ohm jobs in their TO-220 type package. I will tell you though t; /archives//html/Amps/1999-10/msg00619.html (8,007 bytes)
159. [AMPS] RF Surge Problem (score: 1): Author: jono@enteract.com (Jon Ogden); Date: Tue, 26 Oct 99 15:57:49 -0500; Well, if the Alpha-Delta has 40 dB of isolation then: 100 Watts = 50 dBm This means that 10 dBm still gets to the Yaesu front end. 10 dBm is 10 mW. Enough to blow it up? I doubt it but who knows. Act; /archives//html/Amps/1999-10/msg00645.html (9,775 bytes)
160. [AMPS] RF Surge Problem (score: 1): Author: jono@enteract.com (Jon Ogden); Date: Tue, 26 Oct 99 16:05:18 -0500; I forgot to also mention if the Alpha Delta has just 30 dB of isolation then you are putting 100 mW into your front end. That could be enough to blow something. I don't like the idea of a sensitive f; /archives//html/Amps/1999-10/msg00646.html (8,808 bytes)

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