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Total 136 documents matching your query.

21. [TenTec] "A low vswr will kill you ! " (score: 1)
Author: cherry@neta.com (Jim FitzSimons)
Date: Wed, 24 Jan 2001 14:43:11 -0700
Sherrill, a system can be resonate and radiate very little power. Low VSWR on a transmission line usually means lower loss and more radiation where you want it. Regards, Jim FitzSimons W7ANF -- FAQ o
/archives//html/TenTec/2001-01/msg00555.html (10,155 bytes)

22. [TenTec] "A low vswr will kill you ! " (score: 1)
Author: cherry@neta.com (Jim FitzSimons)
Date: Wed, 24 Jan 2001 15:02:30 -0700
Sherril, a transmission line with a high VSWR always looses more power than the same transmission line with low VSWR. Regards, Jim FitzSimons W7ANF low vswr means the antenna is radiating. There is n
/archives//html/TenTec/2001-01/msg00560.html (9,394 bytes)

23. [TenTec] Power Amps, Conuugate, Bruene and Maxwell (score: 1)
Author: cherry@neta.com (Jim FitzSimons)
Date: Wed, 24 Jan 2001 17:22:54 -0700
Jim, when the amplifier moves from A, to AB, to B, to C, to D, to E all the rules change. With high powered FETs much different things are possible. AM MW transmitters are now digital. Their design i
/archives//html/TenTec/2001-01/msg00571.html (10,639 bytes)

24. [TenTec] antennas & such (score: 1)
Author: cherry@neta.com (Jim FitzSimons)
Date: Wed, 24 Jan 2001 18:04:25 -0700
Jerry, my TT238 works great on 160M, but I can not return quickly to the correct spot since the rubber string sticks. Ten Tec sent me a new string but it is hard to replace. Some day I will fix it. I
/archives//html/TenTec/2001-01/msg00577.html (9,082 bytes)

25. [TenTec] "A low vswr will kill you ! " (score: 1)
Author: cherry@neta.com (Jim FitzSimons)
Date: Thu, 25 Jan 2001 12:04:34 -0700
Sherrill, open wire line is not an option I can use. My house is metal so at least I have a good counterpoise. My only HF antenna is a end feed wire 362 feet long. I have a matching transformer at th
/archives//html/TenTec/2001-01/msg00612.html (9,668 bytes)

26. [TenTec] balanced tuners (score: 1)
Author: cherry@neta.com (Jim FitzSimons)
Date: Thu, 25 Jan 2001 12:10:00 -0700
Does anybody make a good tuner like the Matchbox? Regards, Jim FitzSimons W7ANF and killowatt Johnson matchboxes is so insignificant as to be silly! They both have the exact schematic diagram. You sh
/archives//html/TenTec/2001-01/msg00614.html (7,192 bytes)

27. [TenTec] 238 Question (score: 1)
Author: cherry@neta.com (Jim FitzSimons)
Date: Thu, 25 Jan 2001 12:51:14 -0700
Jerry, use a 4:1 transformer to lower the impedance. Then you do not need such a large inductor. I have run out of capacity on my 238. I used the extra capacitor Ten Tec sent with the tuner. The 238
/archives//html/TenTec/2001-01/msg00621.html (7,544 bytes)

28. [TenTec] TUNER? (score: 1)
Author: cherry@neta.com (Jim FitzSimons)
Date: Thu, 25 Jan 2001 13:11:53 -0700
Ron, the AT-11MP will work. That is why Ten Tec sells it. The AT-11MP will tune just about any antenna. Regards, Jim FitzSimons W7ANF -- FAQ on WWW: http://www.contesting.com/FAQ/tentec Submissions:
/archives//html/TenTec/2001-01/msg00622.html (7,873 bytes)

29. [TenTec] "A low vswr will kill you ! " (score: 1)
Author: cherry@neta.com (Jim FitzSimons)
Date: Thu, 25 Jan 2001 14:00:56 -0700
The wire is 362 feet long 20 feet above the ground. The house is the counterpoise. It is sheet metal 14 feet high, 30 feet wide, and 100 feet long. The counterpoise has a wide bandwidth. I do not use
/archives//html/TenTec/2001-01/msg00624.html (10,176 bytes)

30. [TenTec] "A low vswr will kill you ! " (score: 1)
Author: cherry@neta.com (Jim FitzSimons)
Date: Thu, 25 Jan 2001 14:14:36 -0700
long wire sometime in the future. I have never tried to operate with one of these antennas. Can you give me some details on your system, balun, power level, bands operated, etc. How well does your lo
/archives//html/TenTec/2001-01/msg00625.html (9,020 bytes)

31. [TenTec] TUNER? (score: 1)
Author: cherry@neta.com (Jim FitzSimons)
Date: Thu, 25 Jan 2001 22:36:29 -0700
Dale, isn't that how you tune an antenna? You add a little length of wire the feed end called an inductor. Add the wire to the open end and it is a capacitor. Is lazy to have an antenna that can be u
/archives//html/TenTec/2001-01/msg00639.html (8,903 bytes)

32. [TenTec] a low vswr will kill you (score: 1)
Author: cherry@neta.com (Jim FitzSimons)
Date: Fri, 26 Jan 2001 13:21:46 -0700
Corn, you should add that a tuner is needed even if the antenna is resonant. The antenna resonant impedance may not be 50 Ohms. My 362 feet of wire is resonant every 0.633 MHz. Every other resonance
/archives//html/TenTec/2001-01/msg00676.html (10,062 bytes)

33. [TenTec] Remote 4:1 Balun (score: 1)
Author: cherry@neta.com (Jim FitzSimons)
Date: Wed, 31 Jan 2001 14:30:56 -0700
Corn, here in AZ the ground is so dry it is very lossy. When it rains the VSWR of my long wire changes. The ground is more conductive when it rains. Regards, Jim FitzSimons W7ANF -- FAQ on WWW: http:
/archives//html/TenTec/2001-01/msg00800.html (7,703 bytes)

34. [TenTec] Jupiter (score: 1)
Author: cherry@neta.com (Jim FitzSimons)
Date: Sat, 9 Dec 2000 08:04:58 -0700
It does great psk31. No AM. I use my Pegasus with a Centaur and it does OK QSK. All the Ten Tec amps do QSK with the Pegasus/Jupiter. -- FAQ on WWW: http://www.contesting.com/FAQ/tentec Submissions:
/archives//html/TenTec/2000-12/msg00132.html (7,450 bytes)

35. [TenTec] Pegasus and PSK31 (score: 1)
Author: cherry@neta.com (Jim FitzSimons)
Date: Fri, 29 Dec 2000 11:38:15 -0700
Michael, I use my Pegasus with PTT and VOX on many digital modes. I have described my configuration on this list several times. I can look in the archive and resend it to you. I can tell you how to l
/archives//html/TenTec/2000-12/msg00337.html (7,386 bytes)

36. [TenTec] Pegasus and PSK31 (score: 1)
Author: cherry@neta.com (Jim FitzSimons)
Date: Fri, 29 Dec 2000 11:45:35 -0700
Michael, here is a VOX psk31 message. http://lists.contesting.com/_tentec/200008/msg00019.html Regards, Jim FitzSimons W7ANF -- FAQ on WWW: http://www.contesting.com/FAQ/tentec Submissions: tentec@co
/archives//html/TenTec/2000-12/msg00338.html (7,633 bytes)

37. [TenTec] Pegasus and PSK31 (score: 1)
Author: cherry@neta.com (Jim FitzSimons)
Date: Fri, 29 Dec 2000 11:48:15 -0700
Mike, here is another message. http://lists.contesting.com/_tentec/200007/msg00143.html Regards, Jim FitzSimons W7ANF -- FAQ on WWW: http://www.contesting.com/FAQ/tentec Submissions: tentec@contestin
/archives//html/TenTec/2000-12/msg00340.html (7,221 bytes)

38. [TenTec] Supporting the best use of the RX320 (score: 1)
Author: cherry@neta.com (cherry@neta.com)
Date: Wed, 01 Nov 2000 12:29:23 -0700
Bill, here is that information: http://dx.qsl.net/propagation/propagation.html There is a link to an expensive propagation program or you can use it over the internet for free. http://solar.spacew.co
/archives//html/TenTec/2000-11/msg00006.html (8,445 bytes)

39. [TenTec] arrl propergation report (score: 1)
Author: cherry@neta.com (cherry@neta.com)
Date: Wed, 01 Nov 2000 13:36:08 -0700
Bob, you do not have to look at the numbers. At the end of the report it tells you the best time and frequency for several possible paths. http://www.arrl.org/w1aw/prop/2000-arlp043.html I use the re
/archives//html/TenTec/2000-11/msg00011.html (7,707 bytes)

40. [TenTec] arrl propergation report (score: 1)
Author: cherry@neta.com (cherry@neta.com)
Date: Wed, 01 Nov 2000 15:05:44 -0700
Jim, I have been using ABW for some time. I never sent them the money until now. They now have on-line ordering. I got the WinCAP Wizard 2 - HF Propagation Browser. Do you have that program? Peace, J
/archives//html/TenTec/2000-11/msg00014.html (7,679 bytes)


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