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1. Re: [TenTec] OII V2.044A (score: 1): Author: kc9cdt@aol.com; Date: Sat, 26 Feb 2011 11:44:24 -0500 (EST); Seems like the NR is a little less distortion but the AN has more??? Anyone else hear that? 73, Lee, KC9CDT Lee, Sounds good to me. Bring it back, along with the waterfall! 73 Ray Ray, He is talking; /archives//html/TenTec/2011-02/msg00565.html (10,911 bytes)
2. Re: [TenTec] OII V2.044A (score: 1): Author: Rsoifer@aol.com; Date: Sat, 26 Feb 2011 11:57:35 -0500 (EST); Lee, I hardly ever use the AN (rather useless on CW) but I find the NR MUCH better than 2.041XT. Not much difference from 2.039d, though. 73 Ray W2RS In a message dated 2/26/2011 4:44:48 P.M. GMT Sta; /archives//html/TenTec/2011-02/msg00567.html (10,920 bytes)
3. Re: [TenTec] OII V2.044A (score: 1): Author: kc9cdt@aol.com; Date: Sat, 26 Feb 2011 12:13:36 -0500 (EST); Ray, Yep for CW I use the manual notch IF I ant to make one go away..... The NR is, well not so good...usually I just leave it off. Occationally it works OK.. To tell the truth, I have several boat a; /archives//html/TenTec/2011-02/msg00570.html (12,024 bytes)
4. Re: [TenTec] OII V2.044A (score: 1): Author: "Dr. Gerald N. Johnson" <geraldj@weather.net>; Date: Sat, 26 Feb 2011 11:35:43 -0600; I've used an external audio filter on most of my receivers. Both DSP and passive (http://www.geraldj.networkiowa.com/papers/speakerfilter.pdf). The passive filter leaves no artifacts behind. I haven'; /archives//html/TenTec/2011-02/msg00572.html (8,977 bytes)
5. Re: [TenTec] OII V2.044A (score: 1): Author: Rsoifer@aol.com; Date: Sat, 26 Feb 2011 12:45:33 -0500 (EST); Lee, Interesting. The only Hallicrafters receivers I have here are an S-38 and an S-38C. The 566 beats them :-) It also beats my KWM-2 (on reception that is -- Collins transmit audio is still Collins; /archives//html/TenTec/2011-02/msg00574.html (12,811 bytes)
6. Re: [TenTec] OII V2.044A (score: 1): Author: kc9cdt@aol.com; Date: Sat, 26 Feb 2011 12:57:03 -0500 (EST); I think one of the reasons the Drake R-4B, Hallicrafters SX-117 and many others are beter in a noisy condition is simply they do not have all the high frequency respnse in the audio, or maybe it is t; /archives//html/TenTec/2011-02/msg00576.html (14,715 bytes)
7. Re: [TenTec] OII V2.044A (score: 1): Author: "Dr. Gerald N. Johnson" <geraldj@weather.net>; Date: Sat, 26 Feb 2011 12:15:53 -0600; That's where I find my passive speaker filter shines. It passes no audio section noise and no IF noise, an few DSP HF artifacts. A fundamental of receiver design is that selectivity works best as clo; /archives//html/TenTec/2011-02/msg00577.html (10,086 bytes)
8. Re: [TenTec] OII V2.044A (score: 1): Author: Rsoifer@aol.com; Date: Sat, 26 Feb 2011 13:52:43 -0500 (EST); Jerry, Lee, and others, It may be useful to draw a distinction between digging weak signals out of the noise and improving the SNR on stronger signals so they sound better. As we know, most of the in; /archives//html/TenTec/2011-02/msg00581.html (10,394 bytes)
9. Re: [TenTec] OII V2.044A (score: 1): Author: John Molenda <cdistflatfoot@gmail.com>; Date: Sat, 26 Feb 2011 15:35:13 -0500; Please correct me If I am wrong . I read on this reflector a email from John that said the sweep improvement was not to be seen in the near future for the Orion II ! John Molenda kb2huk _____________; /archives//html/TenTec/2011-02/msg00583.html (13,501 bytes)
10. Re: [TenTec] OII V2.044A (score: 1): Author: "ROD" <w3krq@dejazzd.com>; Date: Sat, 26 Feb 2011 15:52:48 -0500; THATS WHAT I FOUND OUT I WAS TOLD TO TURN IT OFF . IS THAT A GOOD REPLY. Seems like the NR is a little less distortion but the AN has more??? Anyone else hear that? 73, Lee, KC9CDT Lee, Sounds good t; /archives//html/TenTec/2011-02/msg00585.html (11,405 bytes)
11. Re: [TenTec] OII V2.044A (score: 1): Author: "Dr. Gerald N. Johnson" <geraldj@weather.net>; Date: Sat, 26 Feb 2011 15:16:43 -0600; When the operator is fresh, yes. After several hours the operator can become fatigued and then needs all the help the hardware can give. But the brain extraction of weak signals from noise is sort of; /archives//html/TenTec/2011-02/msg00587.html (13,114 bytes)
12. Re: [TenTec] OII V2.044A (score: 1): Author: Rsoifer@aol.com; Date: Sat, 26 Feb 2011 18:44:08 -0500 (EST); Jerry, Sounds reasonable to me. I have no data on the effect of fatigue. I do know that in the good old days (1980s-1990s), when men were men and EME was on CW, some of the best EME operators, like V; /archives//html/TenTec/2011-02/msg00590.html (14,129 bytes)
13. Re: [TenTec] OII V2.044A (score: 1): Author: "Dr. Gerald N. Johnson" <geraldj@weather.net>; Date: Sat, 26 Feb 2011 18:17:25 -0600; Some ears work better at copying below the noise level than others. W5WXV didn't do EME but he did long range terrestrial 2m CW contacts regularly and in the lab he claimed he could detect a signal 2; /archives//html/TenTec/2011-02/msg00591.html (17,863 bytes)
14. Re: [TenTec] OII V2.044A (score: 1): Author: kc9cdt@aol.com; Date: Sat, 26 Feb 2011 19:32:54 -0500 (EST); So, what make/model filter do you use on the Orion II? To kill that darn high frequency hiss. 73, Lee That's where I find my passive speaker filter shines. It passes no audio section noise and no IF; /archives//html/TenTec/2011-02/msg00592.html (11,298 bytes)
15. Re: [TenTec] OII V2.044A (score: 1): Author: kc9cdt@aol.com; Date: Sat, 26 Feb 2011 19:50:03 -0500 (EST); Ray, In this case it was a pretty weak signal. I cold not quite copy his call on the OII, I tried everything on the OII to get it....RF gain, AGC threshhold, attenuator with/without different RF gain; /archives//html/TenTec/2011-02/msg00593.html (12,735 bytes)
16. Re: [TenTec] OII V2.044A (score: 1): Author: "Frederick Mott" <fredmott@zoominternet.net>; Date: Sat, 26 Feb 2011 20:00:17 -0500; I had 3 SX-117's and they were good receivers. I believe the SX-117 is a triple conversion receiver. I am sorry that I gave them away along with 2 HT-44's. The XYL said get rid of the old stuff! Fred; /archives//html/TenTec/2011-02/msg00594.html (14,058 bytes)
17. Re: [TenTec] OII V2.044A (score: 1): Author: kc9cdt@aol.com; Date: Sat, 26 Feb 2011 20:19:04 -0500 (EST); Fred Why not pick up a Halli set again...it's great fun along with the high tech. stuff. I will tell you that IMHO 'sometimes' they do work better than the new stuff. Mine looks & works like Bill Hal; /archives//html/TenTec/2011-02/msg00595.html (14,611 bytes)
18. Re: [TenTec] OII V2.044A (score: 1): Author: "Dr. Gerald N. Johnson" <geraldj@weather.net>; Date: Sat, 26 Feb 2011 19:55:54 -0600; I don't have an Orion II. On my other radios I have used my own designs, one of which is at http://www.geraldj.networkiowa.com/papers/speakerfilter.pdf I have also used a Timewave DSP59+ but its not; /archives//html/TenTec/2011-02/msg00596.html (12,934 bytes)
19. Re: [TenTec] OII V2.044A (score: 1): Author: kc9cdt@aol.com; Date: Sat, 26 Feb 2011 21:14:36 -0500 (EST); Jerry, OK...FB, I'll read up on it. 73, Lee I don't have an Orion II. On my other radios I have used my own designs, one of which is at http://www.geraldj.networkiowa.com/papers/speakerfilter.pdf I h; /archives//html/TenTec/2011-02/msg00597.html (13,569 bytes)
20. Re: [TenTec] OII V2.044A (score: 1): Author: Barry N1EU <barry.n1eu@gmail.com>; Date: Sun, 27 Feb 2011 03:29:43 +0000; No high frequency cutoff on the Orion II? Between Hi Cut, BW, and PBT why aren't you able to cutoff high frequencies? Barry N1EU _______________________________________________ TenTec mailing list Te; /archives//html/TenTec/2011-02/msg00598.html (9,523 bytes)

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