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1. [TenTec] OMNI VI product detector IMD (score: 1): Author: Clark Savage Turner <csturner@kcbx.net>; Date: Sun, 16 Jan 2005 21:42:33 -0800; Hey all - Anyone with an early OMNI VI do the Ten Tec modification to improve the in-passband performance of the product detector? I do not mean the 2nd order IMD mod that is done on the RF board (I; /archives//html/TenTec/2005-01/msg00671.html (7,373 bytes)
2. Re: [TenTec] OMNI VI product detector IMD (score: 1): Author: "Steve N4LQ" <n4lq@iglou.com>; Date: Mon, 17 Jan 2005 10:16:41 -0500; Clark: I have the manuals for both the VI and VI+ and have compared the IF/AF board component values fwiw. The only one that stands out it C6. From the VI to VI+, C6 goes from 1,000pf to 2200pf. R31; /archives//html/TenTec/2005-01/msg00677.html (9,169 bytes)
3. RE: [TenTec] OMNI VI product detector IMD (score: 1): Author: "Michael, Dana A" <dana.michael@tycoelectronics.com>; Date: Mon, 17 Jan 2005 10:27:15 -0500; Clark, The Ten-Tec mod does help the in-passband intermod of the product detector. I don't have a manual here at work, but as I recall you increase the lower capacitor of the divider capacitor pair a; /archives//html/TenTec/2005-01/msg00679.html (10,057 bytes)
4. Re: [TenTec] OMNI VI product detector IMD (score: 1): Author: "Steve N4LQ" <n4lq@iglou.com>; Date: Mon, 17 Jan 2005 10:54:26 -0500; Mike I think I can locate the SL6440. Do you have the instructions for building the G4PKT prod det? Steve N4LQ -- Original Message -- From: "Michael, Dana A" <dana.michael@tycoelectronics.com> To: <t; /archives//html/TenTec/2005-01/msg00681.html (10,998 bytes)
5. RE: [TenTec] OMNI VI product detector IMD (score: 1): Author: "Michael, Dana A" <dana.michael@tycoelectronics.com>; Date: Mon, 17 Jan 2005 11:04:20 -0500; Steve, I have a schematic. Mike I think I can locate the SL6440. Do you have the instructions for building the G4PKT prod det? _______________________________________________ TenTec mailing list TenT; /archives//html/TenTec/2005-01/msg00683.html (12,236 bytes)
6. [TenTec] OMNI VI product detector IMD (score: 1): Author: Bill Tippett <btippett@alum.mit.edu>; Date: Mon, 17 Jan 2005 11:21:13 -0500; component values fwiw. The only one that stands out it C6. From the VI to VI+, C6 goes from 1,000pf to 2200pf. R31 from 33k to 100k, R44 eliminated, R45 eliminated. N4SU's Omni VI manual shows new va; /archives//html/TenTec/2005-01/msg00685.html (8,093 bytes)
7. Re: [TenTec] OMNI VI product detector IMD (score: 1): Author: "Don K5AQ" <donhall@myriad.net>; Date: Mon, 17 Jan 2005 11:11:14 -0600; Mike, Have you measured the improvement using the G4PKT mod over the Ten Tec mod. I have an option 3 and an uninstalled G4PKT board and have been debating whether putting it in is worth the effort. T; /archives//html/TenTec/2005-01/msg00690.html (8,343 bytes)
8. RE: [TenTec] OMNI VI product detector IMD (score: 1): Author: "Michael, Dana A" <dana.michael@tycoelectronics.com>; Date: Mon, 17 Jan 2005 12:17:15 -0500; Hi Don, No I have not measured the difference. I have no way to do that. And it maybe my perception that the G4PKT board is better. But the Ten-Tec mod. definitely is an improvement. 73, Mike W3TS Mi; /archives//html/TenTec/2005-01/msg00692.html (9,068 bytes)
9. Re: [TenTec] OMNI VI product detector IMD (score: 1): Author: "Don K5AQ" <donhall@myriad.net>; Date: Mon, 17 Jan 2005 11:53:54 -0600; Thanks Mike. 73 Don K5AQ _______________________________________________ TenTec mailing list TenTec@contesting.com http://lists.contesting.com/mailman/listinfo/tentec; /archives//html/TenTec/2005-01/msg00696.html (7,945 bytes)
10. Re: [TenTec] OMNI VI product detector IMD (score: 1): Author: Bill Tippett <btippett@alum.mit.edu>; Date: Mon, 17 Jan 2005 13:28:53 -0500; Hi Clark, I'm posting this to the reflector since it may be of interest to others. Yes, C6 and R31 were changed to values Steve mentioned and both R44 and R45 appear to be eliminated. I don't know wh; /archives//html/TenTec/2005-01/msg00702.html (12,051 bytes)

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