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301. Re: [TenTec] Pegasus line out (score: 1): Author: Duane Grotophorst <n9dg@yahoo.com>; Date: Mon, 9 Dec 2002 17:29:29 -0800 (PST); Paul has explained it well. However one thing to keep in mind is that there are some sound cards that do not like having both the "left" and "right" inputs tied together without some degree of DC iso; /archives//html/TenTec/2002-12/msg00237.html (9,889 bytes)
302. Re: [TenTec] RX-320 (score: 1): Author: Duane Grotophorst <n9dg@yahoo.com>; Date: Mon, 9 Dec 2002 18:19:10 -0800 (PST); Unless TT eventually releases a new firmware ROM (no FLASH ROM here) there won't ever be true synchronous AM in an RX-320. There may also be an issue of the ADSP-2101 DSP processor not truly being up; /archives//html/TenTec/2002-12/msg00238.html (12,039 bytes)
303. Re: [TenTec] RX-320 frequency drift (score: 1): Author: Duane Grotophorst <n9dg@yahoo.com>; Date: Mon, 9 Dec 2002 18:26:34 -0800 (PST); I was a bit surprised by that too, the one I have here is also much better than that. It is actually unnoticeable, will have to try and specifically measure the drift sometime. 73, Duane N9DG _______; /archives//html/TenTec/2002-12/msg00239.html (8,985 bytes)
304. Re: [TenTec] Spurious Signal on Pegasus (score: 1): Author: Duane Grotophorst <n9dg@yahoo.com>; Date: Fri, 13 Dec 2002 22:00:09 -0800 (PST); Mark, What I think you are seeing is an image response of the 12KHz (nominal) 3rd IF. As you may recall there is a 467KHz LO3 signal being mixed with the 455KHz 2nd IF signal to arrive at the final 1; /archives//html/TenTec/2002-12/msg00317.html (8,720 bytes)
305. Re: [TenTec] Spurious Signal on Pegasus (score: 1): Author: Duane Grotophorst <n9dg@yahoo.com>; Date: Sat, 14 Dec 2002 08:55:09 -0800 (PST); Mark, After thinking about this some more I'm starting to wonder if it is more of a IMD type of issue. I'm thinking that the secondary weak signal is in reality the DSP stage "demodulating" a spur ge; /archives//html/TenTec/2002-12/msg00320.html (10,422 bytes)
306. Re: [TenTec] Rcvr so-called performance figures (lo-o-ong) (score: 1): Author: Duane Grotophorst <n9dg@yahoo.com>; Date: Sat, 9 Nov 2002 03:03:51 -0800 (PST); I think is one of the reasons Elecraft is so well regarded. Along with very good no nonsense RX/TX designs they are catering to the experimenter (ham radio roots) in a way that most manufacturers no; /archives//html/TenTec/2002-11/msg00169.html (9,562 bytes)
307. Re: [TenTec] WOW SERVICE on ARGO V! (score: 1): Author: Duane Grotophorst <n9dg@yahoo.com>; Date: Sat, 23 Nov 2002 13:27:35 -0800 (PST); Or is it simply a fact that all those users of the other brands who do send their radios in for service have nothing to be enthusiastic about, and therefore never talk about it? Can?t actually commen; /archives//html/TenTec/2002-11/msg00455.html (10,479 bytes)
308. Re: [TenTec] World's first transatlantic digi voice (score: 1): Author: Duane Grotophorst <n9dg@yahoo.com>; Date: Mon, 25 Nov 2002 07:13:05 -0800 (PST); With a sentiment like what I think that comment represents, it is amazing that we still have any bands at all to operate anymore!!! Ponder: Circa 1955 - "Great! More Donald Duck noise in the bands. J; /archives//html/TenTec/2002-11/msg00492.html (9,032 bytes)
309. [TenTec] DSP vs. Compass (score: 1): Author: Duane Grotophorst <n9dg@yahoo.com>; Date: Thu, 3 Oct 2002 11:05:08 -0700 (PDT); I must disagree; I take the "128bit" DSP comment to also mean a high number of A to D conversion bits as well. In that case the whole issue of ppm stability/accuracy can be made completely moot. If t; /archives//html/TenTec/2002-10/msg00036.html (9,612 bytes)
310. Re: [TenTec] IF gain pot (score: 1): Author: Duane Grotophorst <n9dg@yahoo.com>; Date: Sat, 5 Oct 2002 16:12:57 -0700 (PDT); Keep in mind that by tweaking the IF gain upward you will most likely be degrading the overall dynamic range of the Pegasus some. So I wouldn't just crank it up Willie-nilly, if you do so - just be p; /archives//html/TenTec/2002-10/msg00090.html (10,222 bytes)
311. Re: [TenTec] Jupiter software (score: 1): Author: Duane Grotophorst <n9dg@yahoo.com>; Date: Wed, 9 Oct 2002 13:00:09 -0700 (PDT); Or applied that $300 towards the second Pegasus, so you will still have two completely sepparate rigs when you want two independent radios, OR a dedicated fulltime spectrum sweep along with the RX/TX; /archives//html/TenTec/2002-10/msg00188.html (11,610 bytes)
312. [TenTec] Discovery: No Open Wire Orion TWINCOM! (score: 1): Author: Duane Grotophorst <n9dg@yahoo.com>; Date: Thu, 17 Oct 2002 20:09:22 -0700 (PDT); CAUTION: Contains humor After seeing the links posted by Ken N9VV Wednesday I quickly went to see what really new and cool info would greet me there. I was immediately rewarded with a wealth of new i; /archives//html/TenTec/2002-10/msg00326.html (11,192 bytes)
313. Re: [TenTec] Orion IF (score: 1): Author: Duane Grotophorst <n9dg@yahoo.com>; Date: Sat, 19 Oct 2002 09:21:18 -0700 (PDT); One of the other comments I also found interesting was that the "digital sections of the two receivers" are identical. Essentially this will mean that whatever performance differences there are betwe; /archives//html/TenTec/2002-10/msg00374.html (9,641 bytes)
314. [TenTec] Re: Keep it on the Listserve (score: 1): Author: Duane Grotophorst <n9dg@yahoo.com>; Date: Sat, 19 Oct 2002 10:17:25 -0700 (PDT); While debating of the merits of having a splinter list or not for the 516/Argonaugt V is valid, a global condemnation of Yahoo (and many of its peers) is not. After all the amount of spam that makes; /archives//html/TenTec/2002-10/msg00376.html (9,331 bytes)
315. Re: [TenTec] Receivability (score: 1): Author: Duane Grotophorst <n9dg@yahoo.com>; Date: Tue, 29 Oct 2002 21:21:53 -0800 (PST); I?ve recently acquired a Kachina 505 and ave done some subjective comparisons of the filtering in it vs. the Pegasus and IC-765. For the same SSB bandwidth the Pegasus filter seems to be about the sa; /archives//html/TenTec/2002-10/msg00579.html (11,149 bytes)
316. Re: [TenTec] Pegasus vs. Argonaut V - CW Filter Bandwidth (score: 1): Author: Duane Grotophorst <n9dg@yahoo.com>; Date: Tue, 29 Oct 2002 21:27:13 -0800 (PST); I think bottom line tradeoff became tighter filter skirts vs. good QSK performance. I?m convinced that better filter skirts could be possible with the Pegasus/Jupiter DSP hardware - if you are willin; /archives//html/TenTec/2002-10/msg00580.html (11,934 bytes)
317. Re: [TenTec] Pegasus vs. Argonaut V - CW Filter Bandwidth (score: 1): Author: Duane Grotophorst <n9dg@yahoo.com>; Date: Thu, 31 Oct 2002 15:53:12 -0800 (PST); Precisely, I don't think anyone was suggesting that TT abandon CW, far from it. But instead offer more ways to make use of the radio hardware that I do buy from them. It should be me, the end user wh; /archives//html/TenTec/2002-10/msg00614.html (10,274 bytes)
318. RE: [TenTec] Re: TenTec digest, Vol 1 #729 - 11 msgs (score: 1): Author: Duane Grotophorst <n9dg@yahoo.com>; Date: Thu, 31 Oct 2002 16:06:44 -0800 (PST); The 95S-1A was one of the three radios at Dayton 1997 that caught my intrest. The other two were the RX-320, and the Kachina 505, I now have two of the 3, ..... hmmm could a 95S-1a be far behind??? ;; /archives//html/TenTec/2002-10/msg00615.html (10,648 bytes)
319. Re: [TenTec] Receivability (score: 1): Author: Duane Grotophorst <n9dg@yahoo.com>; Date: Thu, 31 Oct 2002 16:16:44 -0800 (PST); I have little doubt the Orion's RX performance will be an order of magnitude better that the 505 or the Peg/Jup. Simply because economical DSP hardware has pretty well caught up to what's theoretical; /archives//html/TenTec/2002-10/msg00617.html (11,943 bytes)
320. Re: [TenTec] [OT] re: 50hz PSK filter? (score: 1): Author: Duane Grotophorst <n9dg@yahoo.com>; Date: Thu, 31 Oct 2002 16:35:17 -0800 (PST); The ideal goal for these digital modes is to move the actual decoding of these signals directly to the DSP. By doing so you eleiminate the introduction of distortions by the D to A process, a chain a; /archives//html/TenTec/2002-10/msg00622.html (9,244 bytes)

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