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1. [TenTec] Orion and phase noise (score: 1): Author: John Rippey <w3uls@3n.net>; Date: Fri, 05 Dec 2003 13:42:22 -0500; The ARRL lab has found the Orion's transmitted phase noise to be the lowest of any rig ever tested there. It's -140 db/Hz from the get-go. If I read the ARRL Handbook correctly (2004 edition), transm; /archives//html/TenTec/2003-12/msg00174.html (7,721 bytes)
2. RE: [TenTec] Orion and phase noise (score: 1): Author: "James Duffer" <dufferjames@hotmail.com>; Date: Fri, 05 Dec 2003 13:46:56 -0600; I have seen rigs that had to leave during field day due to their excessive phase noise. I guess when the location has many rigs (as this was the case for field day) phase noise is an "issue" 73, Jim; /archives//html/TenTec/2003-12/msg00177.html (9,266 bytes)
3. Re: [TenTec] Orion and phase noise (score: 1): Author: ac5e@comcast.net; Date: Fri, 05 Dec 2003 19:59:58 +0000; I suspect you are missing something. All that sun noise, atmospheric noise, and all the hash and key clicks from other rigs is spread over a lot of kHz. So yes, the background noise level will be gre; /archives//html/TenTec/2003-12/msg00178.html (11,152 bytes)
4. Re: [TenTec] Orion and phase noise (score: 1): Author: w8au@sssnet.com; Date: Fri, 05 Dec 2003 15:19:06 -0500; At 01:42 PM 12/05/2003, John Rippey wrote: Isn't the end result that a receiver with much less attractive phase noise numbers can probably perform just as well as the Orion in the current noisy signa; /archives//html/TenTec/2003-12/msg00180.html (8,151 bytes)
5. Re: [TenTec] Orion and phase noise (score: 1): Author: "Stuart Rohre" <rohre@arlut.utexas.edu>; Date: Fri, 5 Dec 2003 14:54:00 -0600; Yes it is, that is why you want low phase noise rigs in multi op and Field Day stations. Besides, if the rig does not have good discrimination between two signals you do not want one to be un necessa; /archives//html/TenTec/2003-12/msg00184.html (7,376 bytes)
6. Re: [TenTec] Orion and phase noise (score: 1): Author: Ken Brown <ken.d.brown@verizon.net>; Date: Fri, 05 Dec 2003 11:21:51 -1000; John Rippey wrote: But what does this get you when the airwaves are full of solar and man-made junk? Looking at past ARRL Lab reports, all but the ICOM PROs show quite a lot of transmitted phase nois; /archives//html/TenTec/2003-12/msg00190.html (11,101 bytes)
7. Re: [TenTec] Orion and phase noise (score: 1): Author: Ken Brown <ken.d.brown@verizon.net>; Date: Fri, 05 Dec 2003 11:36:01 -1000; Still lacking that "nirvana" , having low phase noise in your rig reduces it's response to signals outside it's intended receive bandwidth, and is an advantage. And having a clicky or phase noisy tra; /archives//html/TenTec/2003-12/msg00193.html (8,091 bytes)
8. RE: [TenTec] Orion and phase noise (score: 1): Author: Eric Scace K3NA <eric@k3na.org>; Date: Fri, 05 Dec 2003 14:04:22 -0500; All of these impairments are additive. If you listen to a signal transmitted by a radio with lots of phase noise, and your receive introduces more phase noise, the problem is compounded. So cleaning; /archives//html/TenTec/2003-12/msg00213.html (9,716 bytes)

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