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21. Re: [TenTec] The Bug (score: 1)
Author: "Dr. Gerald N. Johnson" <geraldj@storm.weather.net>
Date: Thu, 06 Apr 2006 09:06:03 -0500
A frequency response curve probably won't show clipping distortion unless it has a significant peak which I doubt will be found. -- 73, Jerry, K0CQ, All content copyright Dr. Gerald N. Johnson, elect
/archives//html/TenTec/2006-04/msg00221.html (9,976 bytes)

22. Re: [TenTec] Paragon RTTY (FSK) (score: 1)
Author: "Dr. Gerald N. Johnson" <geraldj@storm.weather.net>
Date: Thu, 06 Apr 2006 09:10:37 -0500
When you go FSK transmit and AFSK receive, you have to set the transmit carrier shift to the same offset as the receive tone frequencies. I don't know how that's set in the Paragon or even if its adj
/archives//html/TenTec/2006-04/msg00222.html (9,367 bytes)

23. Re: [TenTec] The Bug (score: 1)
Author: "Dr. Gerald N. Johnson" <geraldj@storm.weather.net>
Date: Thu, 06 Apr 2006 09:17:16 -0500
Gates and Collins all made a pair of 833s modulated by a pair of 833s. More likely paralleled in the PA. 50's vintage ham limit were PA plate input power ignoring the peaks from modulation. A pair of
/archives//html/TenTec/2006-04/msg00223.html (10,354 bytes)

24. Re: [TenTec] 6 m transverter recommendation? (score: 1)
Author: "Dr. Gerald N. Johnson" <geraldj@storm.weather.net>
Date: Thu, 06 Apr 2006 10:48:12 -0500
Down East Microwave makes a 6m transverter (as well as for all bands though 24 GHz at least) in various versions. Elecraft makes and expensive 6m transverter. SSB Electronics in Sweden sells a 6m tra
/archives//html/TenTec/2006-04/msg00229.html (7,918 bytes)

25. Re: [TenTec] Orion V1 vs. V2 Audio (score: 1)
Author: "Dr. Gerald N. Johnson" <geraldj@storm.weather.net>
Date: Fri, 07 Apr 2006 13:24:43 -0500
In my view, for COMMUNICATIONS, either response curve is too broad. The guttural basso profundo sounds get filtered in MOST receiver filters and just waste RF power and spectrum, while the voice scre
/archives//html/TenTec/2006-04/msg00269.html (10,339 bytes)

26. Re: [TenTec] "The Bug" a/k/a Orion II Audio (score: 1)
Author: "Dr. Gerald N. Johnson" <geraldj@storm.weather.net>
Date: Fri, 07 Apr 2006 21:34:45 -0500
I believe Weaver's original article was in the December 1956 issue of the proceedings of the IRE that was dedicated to SSB. Most everything developed since has had basis from that tome. I have it in
/archives//html/TenTec/2006-04/msg00301.html (10,401 bytes)

27. Re: [TenTec] Signal generator recommendations? (score: 1)
Author: "Dr. Gerald N. Johnson" <geraldj@storm.weather.net>
Date: Sat, 08 Apr 2006 21:16:26 -0500
HP8640B. There is a military version too that's often less pricey. It has really good stability and phase noise and a super attenuator. Covers 450 KHz to 512 MHz. It has a digital frequency lock and
/archives//html/TenTec/2006-04/msg00308.html (8,761 bytes)

28. Re: [TenTec] anyone lose a centurion hv xfmr? (score: 1)
Author: "Dr. Gerald N. Johnson" <geraldj@storm.weather.net>
Date: Wed, 12 Apr 2006 09:38:23 -0500
I'd say your secondary winding is open. The DC resistance of a typical E-I core winding is typically under 4% of the output load. The DC resistance of a tape wound core winding is often under 2%. So
/archives//html/TenTec/2006-04/msg00372.html (11,252 bytes)

29. Re: [TenTec] help/paint (score: 1)
Author: "Dr. Gerald N. Johnson" <geraldj@storm.weather.net>
Date: Wed, 12 Apr 2006 18:05:02 -0500
Take a panel or cover from either case. Be sure its clean. Or for touch up, decide if its gloss or flat, then start with Testor's model paints. Probably battleship gray, then add white or black until
/archives//html/TenTec/2006-04/msg00399.html (8,422 bytes)

30. Re: [TenTec] anyone lose a centurion hv xfmr? (NO!) (score: 1)
Author: "Dr. Gerald N. Johnson" <geraldj@storm.weather.net>
Date: Sat, 15 Apr 2006 08:19:33 -0500
Could have been a flash over on the board, or could be shorted diodes that drew enough current to burn the traces in two and then the inductive kick and unloaded transformer lead to a flash over. The
/archives//html/TenTec/2006-04/msg00492.html (8,460 bytes)

31. Re: [TenTec] Omni C self-test (score: 1)
Author: "Dr. Gerald N. Johnson" <geraldj@storm.weather.net>
Date: Sat, 15 Apr 2006 08:28:33 -0500
The 17 meter problem in the Omni C was described here yesterday as being second harmonic of the IF. That's not quite true. Its actually second harmonic of the PTO injection. I a transmitter with 9 MH
/archives//html/TenTec/2006-04/msg00493.html (9,434 bytes)

32. Re: [TenTec] Seagull Scientific - Slash 0 True Type Font (score: 1)
Author: "Dr. Gerald N. Johnson" <geraldj@storm.weather.net>
Date: Sun, 16 Apr 2006 21:17:42 -0500
Yah, but when you send that electronically, it may show up as something else since Linux and Macs use different extended characters. And that won't cause the slash to show on received electronic file
/archives//html/TenTec/2006-04/msg00525.html (8,181 bytes)

33. Re: [TenTec] Slash 0 (score: 1)
Author: "Dr. Gerald N. Johnson" <geraldj@storm.weather.net>
Date: Tue, 18 Apr 2006 15:22:08 -0500
That is most certainly true. -- 73, Jerry, K0CQ, All content copyright Dr. Gerald N. Johnson, electrical engineer _______________________________________________ TenTec mailing list TenTec@contesting
/archives//html/TenTec/2006-04/msg00586.html (10,640 bytes)

34. Re: [TenTec] omni d series c display problem solved butother problem ocurrs (score: 1)
Author: "Dr. Gerald N. Johnson" <geraldj@storm.weather.net>
Date: Wed, 19 Apr 2006 12:27:26 -0500
I've seen this sort of thing in other brands. And it came from loose board mounting screws that were supplying grounds to those boards. Tightening the grounding screws cured them all. -- 73, Jerry, K
/archives//html/TenTec/2006-04/msg00606.html (8,459 bytes)

35. Re: [TenTec] Paragon 585 question (score: 1)
Author: "Dr. Gerald N. Johnson" <geraldj@storm.weather.net>
Date: Thu, 20 Apr 2006 09:05:13 -0500
My Corsair II disconnects the RF stage for its input attenuator effect. It certainly helps the high end dynamic range taking out the limitations of the RF stage and reducing the maximum signal seen a
/archives//html/TenTec/2006-04/msg00627.html (8,579 bytes)

36. Re: [TenTec] Upcoming Field Day Planning questions and thoughts (score: 1)
Author: "Dr. Gerald N. Johnson" <geraldj@storm.weather.net>
Date: Sun, 30 Apr 2006 10:18:25 -0500
The Corsair II has the RF performance to survive your plans, and has fewer front panel controls to get messed up by the casual user. I think you'll find this year that you will need 40m and 80m anten
/archives//html/TenTec/2006-04/msg00828.html (12,292 bytes)

37. Re: [TenTec] Orion vs SDR 1K (score: 1)
Author: "Dr. Gerald N. Johnson" <geraldj@storm.weather.net>
Date: Sun, 30 Apr 2006 10:38:36 -0500
Its possible that the fastest Pentium computer is slower than a dedicated DSP chip and that using floating point rather than long word integer is partly responsible for the latency. However there is
/archives//html/TenTec/2006-04/msg00829.html (10,379 bytes)

38. Re: [TenTec] Hearing disabled CW OP Seeks Special Omni Filter (score: 1)
Author: "Dr. Gerald N. Johnson" <geraldj@storm.weather.net>
Date: Sun, 30 Apr 2006 12:17:41 -0500
Using the narrow filter in the 6.3 MHz IF and the passband tuning can get you a low pitch CW receive note. It will probably take some transmitter XIT to get the transmitter frequency to match. You'd
/archives//html/TenTec/2006-04/msg00834.html (10,873 bytes)

39. Re: [TenTec] PRIVATE& CONFIDENTIAL Re: Orion vs SDR 1K (score: 1)
Author: "Dr. Gerald N. Johnson" <geraldj@storm.weather.net>
Date: Sun, 30 Apr 2006 13:54:39 -0500
I guess I'm the outsider, but I'm studying up on DSP and thinking about jumping in with my own product. The more I learn about what is working and not working the better product I can make. Then agai
/archives//html/TenTec/2006-04/msg00853.html (8,848 bytes)

40. Re: [TenTec] Orion as AM radio (score: 1)
Author: "Dr. Gerald N. Johnson" <geraldj@storm.weather.net>
Date: Mon, 01 May 2006 09:58:57 -0500
Art Collins for one. And he demanded a separate PA plate feed audio choke to keep the unbalanced DC out of the modulation transformer. A young engineer once proposed running a 1 KW broadcast transmit
/archives//html/TenTec/2006-05/msg00024.html (12,780 bytes)

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