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41. Re: [TenTec] Antenna Analyzers (score: 1): Author: Bill Fuqua <wlfuqu00@uky.edu>; Date: Wed, 13 Aug 2003 10:48:21 -0400; I have used 3 MFJ analyzers. Two have failed one was a fault in the analyzer the second was an accidental application of reverse supply voltage ( picked up a reverse polarized 12 volt plug by mistake; /archives//html/TenTec/2003-08/msg00274.html (10,430 bytes)
42. Re: Re: [TenTec] Antenna Analyzers (score: 1): Author: "Bill L. Fuqua" <wlfuqu00@uky.edu>; Date: Wed, 13 Aug 2003 22:40:33 -0400; MFJ considers the workings of their antenna analyzers a top secret. It is one theing that they don't provide even if you aske for it or are willing to pay. 73 Bill wa4lav I have always gotten schemat; /archives//html/TenTec/2003-08/msg00304.html (9,342 bytes)
43. Re: Re: [TenTec] Antenna Analyzers (score: 1): Author: Bill Fuqua <wlfuqu00@uky.edu>; Date: Thu, 14 Aug 2003 10:21:07 -0400; I am happy you are so clever or just lucky. At 10:01 AM 8/14/2003 -0400, you wrote: I don't know what the big deal is, just an oscillator and SWR meter. I repaired one that had been damaged by revers; /archives//html/TenTec/2003-08/msg00310.html (10,877 bytes)
44. Re: Re: [TenTec] Antenna Analyzers (score: 1): Author: Bill Fuqua <wlfuqu00@uky.edu>; Date: Thu, 14 Aug 2003 10:20:19 -0400; Oscillator, microcontroller, LCD displays,etc.... 73 Bill wa4lav At 10:01 AM 8/14/2003 -0400, you wrote: I don't know what the big deal is, just an oscillator and SWR meter. I repaired one that had b; /archives//html/TenTec/2003-08/msg00311.html (10,940 bytes)
45. Re: [TenTec] Antenna Analyzers (score: 1): Author: Bill Fuqua <wlfuqu00@uky.edu>; Date: Thu, 14 Aug 2003 14:45:07 -0400; All I found was some modifications to the 259 no schematics. 73 Bill wa4lav Of course, a tweezers and microscope would be really helpful in attempting repairs (not to mention a good source for oddbal; /archives//html/TenTec/2003-08/msg00319.html (9,295 bytes)
46. Re: [TenTec] Antenna Analyzers (score: 1): Author: Bill Fuqua <wlfuqu00@uky.edu>; Date: Thu, 14 Aug 2003 15:20:19 -0400; Found a hand drawn schematic at http://www.qsl.net/dk3red/mfj259b-sch.jpg. But still have no time to fool with it. But do see how to make it do what I want if I get back to it. What I need is to have; /archives//html/TenTec/2003-08/msg00321.html (10,396 bytes)
47. Re: [TenTec] Antenna Analyzers (score: 1): Author: Bill Fuqua <wlfuqu00@uky.edu>; Date: Thu, 14 Aug 2003 16:27:45 -0400; Analyzers have been improving over the years. The ones had were the first ones off the production line. This last one is fairly good. If they used better detectors and bridge circuits they would be m; /archives//html/TenTec/2003-08/msg00323.html (10,623 bytes)
48. Re: [TenTec] Omni C on 17m (score: 1): Author: Bill Fuqua <wlfuqu00@uky.edu>; Date: Tue, 19 Aug 2003 13:16:36 -0400; Interesting question. All radios put out spurs,harmonics, splatter etc. It is a matter of level. An example; years ago I heard a lower sideband signal on the upper part of 10 meters and waited for an; /archives//html/TenTec/2003-08/msg00409.html (11,223 bytes)
49. Re: [TenTec] Century/21 Model 574 receiving what's not there? (score: 1): Author: Bill Fuqua <wlfuqu00@uky.edu>; Date: Thu, 21 Aug 2003 09:08:56 -0400; You CAN hear 5 Hz tone burst. Same as slow CW. He obviously is using his BFO and thus is hearing burst rather than a 5 Hz sinusoidal signal. 73 Bill wa4lav Good luck with the rig, I have a Century 21; /archives//html/TenTec/2003-08/msg00454.html (13,291 bytes)
50. Re: [TenTec] 60M.. Monitoring (score: 1): Author: Bill Fuqua <wlfuqu00@uky.edu>; Date: Fri, 11 Jul 2003 09:09:27 -0400; Because you can hear both stations does not mean that they can hear each other. This is one problem with the secondary allocation concept. One Primary station sending a signal to another may have goo; /archives//html/TenTec/2003-07/msg00329.html (8,179 bytes)
51. Re: [TenTec] Balanced Tuners (score: 1): Author: Bill Fuqua <wlfuqu00@uky.edu>; Date: Tue, 15 Jul 2003 09:22:10 -0400; What is a quarter wavelength of non-conducting plastic with unknown dielectric constant? 73 Bill wa4lav A small sample well under resonant lengths is preferred for testing along with a cup of water.; /archives//html/TenTec/2003-07/msg00419.html (9,972 bytes)
52. Re: [TenTec] Orion Brand Name (score: 1): Author: Bill Fuqua <wlfuqu00@uky.edu>; Date: Tue, 15 Jul 2003 15:01:35 -0400; I thought it was a constellation. One of our very active shortwave listeners here in Lexington,KY lives on Orion Ave. They were renaming some of the streets due to confusion of similar names and he w; /archives//html/TenTec/2003-07/msg00430.html (9,837 bytes)
53. RE: [TenTec] field day from hell (score: 1): Author: Bill Fuqua <wlfuqu00@uky.edu>; Date: Thu, 17 Jul 2003 11:30:49 -0400; The Human ear and its associated processor (the human brain) works very well. I wonder if there has ever been a real study on the usefulness of DSP in communications situations where adaptive noise r; /archives//html/TenTec/2003-07/msg00512.html (15,253 bytes)
54. Re: [TenTec] field day from hell (score: 1): Author: Bill Fuqua <wlfuqu00@uky.edu>; Date: Thu, 17 Jul 2003 12:32:26 -0400; The best we had until Collins introduced the noise blanker was noise limiters. But usually they produced some distortion. A few had a means of self adjustment so that they would not produce much dist; /archives//html/TenTec/2003-07/msg00515.html (12,424 bytes)
55. Re: [TenTec] Argo, Jupiter, Pegasus, RX320 overload (score: 1): Author: Bill Fuqua <wlfuqu00@uky.edu>; Date: Wed, 23 Jul 2003 09:23:46 -0400; Removing the bypass capacitor will also improve the linearity of the amplifier. The attenuator will not. 73 Bill wa4lav George, thanks for your comments about removing the source bypass resistor (I s; /archives//html/TenTec/2003-07/msg00630.html (9,329 bytes)
56. Re: [TenTec] Argo, Jupiter, Pegasus, RX320 overload (score: 1): Author: Bill Fuqua <wlfuqu00@uky.edu>; Date: Wed, 23 Jul 2003 10:36:04 -0400; Switching at this higher IF frequency is difficult. The resistance of the switch must be very low compared to the source resistor's value and have low inductance. A tiny reed switch perhaps would wor; /archives//html/TenTec/2003-07/msg00634.html (8,650 bytes)
57. Re: [TenTec] SCOUT PSK adapter (score: 1): Author: Bill Fuqua <wlfuqu00@uky.edu>; Date: Tue, 29 Jul 2003 15:16:57 -0400; All you need is a reasonably fast PC, shareware program and audio cables plus a simple interface to key the transmitter when transmitting. Not needed if you have VOX. This cable usually has a couple; /archives//html/TenTec/2003-07/msg00746.html (8,734 bytes)
58. Re: [TenTec] dbm and VU units of audio measurement (score: 1): Author: Bill Fuqua <wlfuqu00@uky.edu>; Date: Wed, 30 Jul 2003 14:14:50 -0400; At 12:32 PM 7/30/2003 -0500, you wrote: Lots of confusion abt how the dB standard has been applied and used over the years. My HP-606A SG uses the DBM range referencing 0db=10 dB below 1V (.3V) into; /archives//html/TenTec/2003-07/msg00764.html (8,800 bytes)
59. Re: [TenTec] Why Ethernet? (score: 1): Author: Bill Fuqua <wlfuqu00@uky.edu>; Date: Mon, 02 Jun 2003 14:19:58 -0400; Just got back into town and noticed this thread. I am involved in the design of instruments for physics research. And one problem that we have encountered is the rapid change in computer technology m; /archives//html/TenTec/2003-06/msg00052.html (10,755 bytes)
60. Re: [TenTec] Some Observations on Orion Stability/Calibration (score: 1): Author: Bill Fuqua <wlfuqu00@uky.edu>; Date: Wed, 04 Jun 2003 09:26:40 -0400; 73, Mark This is not so much of an issue as it may be if you are using several receivers perhaps in space or polarization diversity or plan to use a transmitter or transceiver along with the RX340. I; /archives//html/TenTec/2003-06/msg00141.html (10,724 bytes)

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