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41. [TenTec] Carl, Pmni, 756 etc (score: 1): Author: W8JI@contesting.com (Tom Rauch); Date: Sat, 16 Mar 2002 06:22:17 -0500; I haven't seen an S-meter yet that tracks below S-8 or conforms to any standard, although many or most are OK above S-9. I have heard some new software based S-meters are OK. I would never depend on; /archives//html/TenTec/2002-03/msg00646.html (10,819 bytes)
42. [TenTec] Lightning protection (score: 1): Author: W8JI@contesting.com (Tom Rauch); Date: Sat, 16 Mar 2002 21:06:11 -0500; My point wasn't to encourage or discourage using an arrestor, but rather that the effects of protection by adding such devices are largely exaggerated. There also can be damaging effects, if we run; /archives//html/TenTec/2002-03/msg00675.html (7,381 bytes)
43. [TenTec] Carl, Pmni, 756 etc (score: 1): Author: W8JI@contesting.com (Tom Rauch); Date: Sat, 16 Mar 2002 21:06:11 -0500; Hi Carl, That actually is one of the least challenging applications, and has little to do with how the receiver works with close signal spacing. Only the stages in front of the roofing filter are inv; /archives//html/TenTec/2002-03/msg00676.html (10,765 bytes)
44. [TenTec] Q re lightning protection (score: 1): Author: W8JI@contesting.com (Tom Rauch); Date: Sat, 16 Mar 2002 21:41:47 -0500; I have a wide 3" copper flashing with the shortest path possible between my telco and power line ground and my station ground. That's mainly to provide a bypass around the house wiring for a direct; /archives//html/TenTec/2002-03/msg00678.html (7,780 bytes)
45. [TenTec] IM figures (score: 1): Author: W8JI@contesting.com (Tom Rauch); Date: Tue, 19 Mar 2002 05:09:07 -0500; This goes back to the same problems receivers in general have. We often look at data taken for two pure tones, and assume the dynamic range for two tones is the dynamic range for multiple tones. The; /archives//html/TenTec/2002-03/msg00739.html (9,817 bytes)
46. [TenTec] RE: PBT, extra power (score: 1): Author: W8JI@contesting.com (Tom Rauch); Date: Tue, 19 Mar 2002 06:05:25 -0500; Many amplifiers and radios get dirtier (when expressed as a ratio of desired signal output to distortion product output) when power is reduced. Reducing power does not always mean you improved the r; /archives//html/TenTec/2002-03/msg00740.html (7,272 bytes)
47. [TenTec] Orion power output (score: 1): Author: W8JI@contesting.com (Tom Rauch); Date: Tue, 19 Mar 2002 06:05:25 -0500; Good luck on driving the old L7, which was designed to be a 600 watt output CW (1KW CW input power), 1200 watt output SSB amplifier (two KW PEP input), with 200 watts! 73, Tom W8JI W8JI@contesting.c; /archives//html/TenTec/2002-03/msg00741.html (7,934 bytes)
48. [TenTec] Orion power output (score: 1): Author: W8JI@contesting.com (Tom Rauch); Date: Tue, 19 Mar 2002 06:05:25 -0500; One S unit is typically about 1 dB or so at the low end of most S meter scales. Most S meters are "calibrated" at less than 5dB per S unit, a few are calibrated at 6dB, but that generally only works; /archives//html/TenTec/2002-03/msg00742.html (8,201 bytes)
49. [TenTec] Carl, Pmni, 756 etc (score: 1): Author: W8JI@contesting.com (Tom Rauch); Date: Tue, 19 Mar 2002 06:05:25 -0500; What does that have to do with anything? I can work "weak signal DX" on 160 and 80 using a S-38 Hallicrafters. As a matter of fact, the S-38 makes all the DX "weak signal DX". Even the strong ones.; /archives//html/TenTec/2002-03/msg00743.html (8,855 bytes)
50. [TenTec] Orion power output (score: 1): Author: W8JI@contesting.com (Tom Rauch); Date: Tue, 19 Mar 2002 06:05:25 -0500; One dB (not 3dB) is the smallest level increase recognized by the human ear, whatever that means. This applies to only a single tone with no noise or interference. The one dB rule does NOT apply to s; /archives//html/TenTec/2002-03/msg00744.html (9,312 bytes)
51. [TenTec] Carl, Pmni, 756 etc (score: 1): Author: W8JI@contesting.com (Tom Rauch); Date: Tue, 19 Mar 2002 21:08:01 -0500; But Carl, my point is really this.... The only way to compare receivers is to compare them under some sort of standardized tests, even if those tests are less than perfect. I won't debate or disagre; /archives//html/TenTec/2002-03/msg00764.html (8,895 bytes)
52. [TenTec] Orion power output (score: 1): Author: W8JI@contesting.com (Tom Rauch); Date: Tue, 19 Mar 2002 21:08:01 -0500; I might not be following what you are trying to say...but..... The AGC might stop or reduce a volume change, but that is all. If I change the input power of the types of receivers we are talking abo; /archives//html/TenTec/2002-03/msg00765.html (8,027 bytes)
53. [TenTec] Carl, Pmni, 756 etc (score: 1): Author: W8JI@contesting.com (Tom Rauch); Date: Tue, 19 Mar 2002 21:08:01 -0500; I have a S38 and a SX99 here, and they are both helped immensely by an audio DSP filter...if you can keep the stations tuned in... those receivers, not because of them. Differences from location-to-; /archives//html/TenTec/2002-03/msg00766.html (8,630 bytes)
54. [TenTec] Carl, Pmni, 756 etc (score: 1): Author: W8JI@contesting.com (Tom Rauch); Date: Wed, 20 Mar 2002 07:17:47 -0500; I haven't seen anyone slam technology when it is *properly* applied. Factually, almost anyone on 160 or 80 meters would notice close spaced IM DR in the 70dB or less range if they work weak CW signa; /archives//html/TenTec/2002-03/msg00772.html (8,621 bytes)
55. [TenTec] 4CX1600B's (score: 1): Author: W8JI@contesting.com (Tom Rauch); Date: Wed, 27 Mar 2002 22:03:41 -0500; I just looked, and I have several new-in-box 4CX1600B tubes as well as some sockets and chimneys. I **won't** sell them, so please don't ask. I will trade one or two new-in-box 4CX1600 tubes for an o; /archives//html/TenTec/2002-03/msg00919.html (7,334 bytes)
56. [TenTec] Re: FYI - key click thread on Ten-Tec reflector (score: 1): Author: W8JI@contesting.com (Tom Rauch); Date: Fri, 1 Feb 2002 00:38:05 -0500; There was a long discussion about this on a newsgroup. If you read Kevin's web page, you'll see he says his detailed analysis supports my practical experience and measurements in my lab. I'm less ma; /archives//html/TenTec/2002-02/msg00000.html (9,009 bytes)
57. [TenTec] Re: TT vs 756PROII (score: 1): Author: W8JI@contesting.com (Tom Rauch); Date: Fri, 1 Feb 2002 21:40:18 -0500; You probably already do this or something similar, but what I do is drive a NPN transistor with a signal generator. I tie the collector to the manual key input, and of course the emitter is grounded; /archives//html/TenTec/2002-02/msg00038.html (8,827 bytes)
58. [TenTec] Re: TT vs 756PROII (score: 1): Author: W8JI@contesting.com (Tom Rauch); Date: Sat, 2 Feb 2002 05:32:23 -0500; <snip> The main marketing guy at ICOM, perhaps four years ago, told me "no one works CW, it is a dying mode" and "there isn't any chance we will change the software, the ratio control is fine". Whil; /archives//html/TenTec/2002-02/msg00044.html (8,578 bytes)
59. [TenTec] Re: TT vs 756PROII (score: 1): Author: W8JI@contesting.com (Tom Rauch); Date: Sat, 2 Feb 2002 05:32:23 -0500; Hi Steve, Respectfully, that is why we should look at it with a scope. The IC- 706 (and the 775DSP I had) does not just truncate dits, it truncates the leading edge of EVERY element, both dots and d; /archives//html/TenTec/2002-02/msg00045.html (8,118 bytes)
60. [TenTec] Pegasus/Jupiter keying - In search of Perfect CW :-) (score: 1): Author: W8JI@contesting.com (Tom Rauch); Date: Sun, 3 Feb 2002 05:58:22 -0500; Sure appears that way. neighbor. Actually that is still about half the rise and fall time needed. I don't know where the rumor comes from that excessive bandwidth somehow results in "cutting QRM or; /archives//html/TenTec/2002-02/msg00078.html (10,290 bytes)

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