Mail Archive Search: <+subject:/^(?:^\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*)*\[TenTec\]\s+what\s+is\s+\"quiet\"\?\s*$/>

Results:

References: [ +subject:/^(?:^\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*)*\[TenTec\]\s+what\s+is\s+\"quiet\"\?\s*$/: 39 ]

Total 39 documents matching your query.

21. [TenTec] what is "quiet"? (score: 1): Author: w5yr@att.net (George, W5YR); Date: Tue, 02 Apr 2002 19:00:07 -0600; Actually, Steve, the Twin Passband Tuning of the PRO (its version of IF Shift and Passband Tuning and much more, actually) is not done with added mixers or any analog circuitry. It, and every other s; /archives//html/TenTec/2002-04/msg00098.html (12,507 bytes)
22. [TenTec] what is "quiet"? (score: 1): Author: n4lq@iglou.com (Steve Ellington); Date: Tue, 2 Apr 2002 20:25:15 -0500; George, are you saying the PRO has no means to vary the IF bandpass before reaching the DSP? If you set DSP for 100hz bandwidth, does the IF bandwidth remain wide open at it's default? The TS-870 has; /archives//html/TenTec/2002-04/msg00099.html (13,961 bytes)
23. [TenTec] what is "quiet"? (score: 1): Author: jimr.reid@verizon.net (Jim Reid); Date: Tue, 2 Apr 2002 15:46:21 -1000; Ok, so which is more quiet: my RX-340 or my Corsair II? Quick answer, just after turning the two rigs "on": the Corsair II. But, now some experiments, and discussion. The receiver "plans": RX-340 (Fi; /archives//html/TenTec/2002-04/msg00100.html (14,410 bytes)
24. [TenTec] what is "quiet"? (score: 1): Author: n1eu@yahoo.com (N1EU); Date: Tue, 2 Apr 2002 17:55:30 -0800 (PST); Jim, I think you've left out a bit of circuitry in the Corsair. You're describing the Triton/early Omni series, not the Corsair, which has filters in 9Mhz and 6.3Mhz if's. 73, Barry N1EU ____________; /archives//html/TenTec/2002-04/msg00101.html (9,292 bytes)
25. [TenTec] what is "quiet"? (score: 1): Author: n4lq@iglou.com (Steve Ellington); Date: Tue, 2 Apr 2002 21:35:09 -0500; Jim. That was good! Now, define "conversion". Sounds like at least 2 to me in the Corsair. Input freq. to 9mhz then 9mhz to 6.3mhz. Then again, with mixers at each end of the 6.3mhz filter....maybe t; /archives//html/TenTec/2002-04/msg00103.html (17,048 bytes)
26. [TenTec] what is "quiet"? (score: 1): Author: jimr.reid@verizon.net (Jim Reid); Date: Tue, 2 Apr 2002 17:06:34 -1000; Barry, N1EU replied: Well, yes, but, hi. The "basic " 9 MHz IF goes all the way through the Corsair EXCEPT for a brief 2nd 6.3 IF conversion ONLY for band pass tuning, then the signal is again mixed; /archives//html/TenTec/2002-04/msg00104.html (10,113 bytes)
27. [TenTec] What is "quiet"? (score: 1): Author: RMcGraw@Blomand.Net (Robert & Linda McGraw K4TAX); Date: Tue, 02 Apr 2002 21:22:39 -0600; Single conversion receivers have their benefits to offer, so do multiple conversion receivers. Then there's the drawbacks that each has to offer. Simply turning up the gain to max and listening to th; /archives//html/TenTec/2002-04/msg00105.html (8,783 bytes)
28. [TenTec] What is "quiet"? (score: 1): Author: w5yr@att.net (George, W5YR); Date: Tue, 02 Apr 2002 23:32:41 -0600; True, Bob, but at HF the receiver noise figure is largely irrelevant as band noise usually totally overwhelms front-end noise. I think that others have made the point that what the receiver *does* wi; /archives//html/TenTec/2002-04/msg00108.html (9,678 bytes)
29. [TenTec] what is "quiet"? (score: 1): Author: w5yr@att.net (George, W5YR); Date: Tue, 02 Apr 2002 23:34:21 -0600; And don't forget that final conversion to baseband audio . . . 73/72/oo, George W5YR - the Yellow Rose of Texas Fairview, TX 30 mi NE of Dallas in Collin county EM13qe Amateur Radio W5YR, in the 56th; /archives//html/TenTec/2002-04/msg00109.html (10,143 bytes)
30. [TenTec] what is "quiet"? (score: 1): Author: w5yr@att.net (George, W5YR); Date: Tue, 02 Apr 2002 23:37:57 -0600; Your next to last sentence has the answer "No" Steve. Only fixed roofing filter action is present until the DSP core processor is reached at the final IF of 36 KHz. All narrower bandwidths are determ; /archives//html/TenTec/2002-04/msg00110.html (9,169 bytes)
31. [TenTec] what is "quiet"? (score: 1): Author: jimr.reid@verizon.net (Jim Reid); Date: Tue, 2 Apr 2002 20:16:58 -1000; Steve, N4LO, wrote, wondering: As Spock might have said, "Fascinating"! Superheterodyne principles were "developed" or invented by Mr. Armstrong as one way to increase selectivity. Frequency conversi; /archives//html/TenTec/2002-04/msg00113.html (13,403 bytes)
32. [TenTec] what is "quiet"? (score: 1): Author: W8JI@contesting.com (Tom Rauch); Date: Wed, 3 Apr 2002 05:47:28 -0500; One problem with comparing things is many of the effects are subjective, like "fatigue". One person might be bothered by something that won't bother another person at all. The other major problem is; /archives//html/TenTec/2002-04/msg00115.html (11,333 bytes)
33. [TenTec] what is "quiet"? (score: 1): Author: n4lq@iglou.com (n4lq@iglou.com); Date: Wed, 03 Apr 2002 07:06:52 -0500; I'm curious Tom. What modern receiver do you use or recommend for those weak cw signals?; /archives//html/TenTec/2002-04/msg00116.html (12,830 bytes)
34. [TenTec] what is "quiet"? (score: 1): Author: W8JI@contesting.com (Tom Rauch); Date: Wed, 3 Apr 2002 07:40:31 -0500; If I knew of a good receiver or transceiver I'd go out and buy a few today for myself. 73, Tom W8JI W8JI@contesting.com; /archives//html/TenTec/2002-04/msg00117.html (9,029 bytes)
35. [TenTec] what is "quiet"? (score: 1): Author: n9dg@yahoo.com (Duane Grotophorst); Date: Wed, 3 Apr 2002 07:52:51 -0800 (PST); And this is why the cumulative contribution of noise by a multitude of mixer stages is such a thorn, not only do you have the original noise you are incrementally adding more in each mixer stage. And; /archives//html/TenTec/2002-04/msg00119.html (11,799 bytes)
36. [TenTec] what is "quiet"? (score: 1): Author: n4lq@iglou.com (n4lq@iglou.com); Date: Wed, 03 Apr 2002 13:06:13 -0500; Well you mentioned the modified Drake R4C. Is that what you normally use on 160 for high noise, weak signals?; /archives//html/TenTec/2002-04/msg00122.html (9,514 bytes)
37. [TenTec] what is "quiet"? (score: 1): Author: W8JI@contesting.com (Tom Rauch); Date: Thu, 4 Apr 2002 07:04:06 -0500; Yes, but they have almost entirely new circuitry, from mixers to audio. Stock they need a whole lot of work, they really aren't as good as many other newer receivers. Rebuilt with solid-state compon; /archives//html/TenTec/2002-04/msg00145.html (9,675 bytes)
38. [TenTec] what is "quiet"? (score: 1): Author: W8JI@contesting.com (Tom Rauch); Date: Thu, 4 Apr 2002 07:04:06 -0500; While I am not a "fan" of needless mixers, I think we might be encouraging mixerism. For example, all of the annoying hiss in FT1000's comes from a single IF amplifier stage just after the last narr; /archives//html/TenTec/2002-04/msg00146.html (9,396 bytes)
39. [TenTec] what is "quiet"? (score: 1): Author: jimr.reid@verizon.net (Jim Reid); Date: Thu, 4 Apr 2002 14:24:27 -1000; Maybe Tom is modest? He didn't link to his much material. Anyway, he has written up a lot of info about rcvr measurements AND his mods to a few rcvrs, including everything done to his "R4C"',; reall; /archives//html/TenTec/2002-04/msg00164.html (9,541 bytes)

Current List: 21 - 39
Page: [1] [2]