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1. [TenTec] 1 kHz IMD with Preamp ON/OFF (score: 1): Author: Bill Tippett <btippett@alum.mit.edu>; Date: Sun, 21 Dec 2003 17:20:43 -0500; Hi Michael, I have a few questions which others may be interested in as well. In studying Orion's ETR, I noticed that the IMD performance is actually better with the preamp ON rather than OFF. This s; /archives//html/TenTec/2003-12/msg00793.html (9,165 bytes)
2. Re: [TenTec] 1 kHz IMD with Preamp ON/OFF (score: 1): Author: Bob Henderson <bob@cytanet.com.cy>; Date: Mon, 22 Dec 2003 06:43:51 +0000; Bill Tippett wrote: 1. Why does Orion's performance improve with Preamp ON? 2. Why does K2's performance degrade so much from 5 kHz (88 dB) to 1 kHz (67 dB)? Is there a simple explanation or am I pos; /archives//html/TenTec/2003-12/msg00804.html (8,111 bytes)
3. Re: [TenTec] 1 kHz IMD with Preamp ON/OFF (score: 1): Author: Ken Brown <ken.d.brown@verizon.net>; Date: Sun, 21 Dec 2003 20:50:12 -1000; Bob, 5B4AGN, P3F, G3ZEM Bob, is 5 B4 AGN the same as 5 dup QSOs? Ken, N6KB _______________________________________________ TenTec mailing list TenTec@contesting.com http://lists.contesting.com/mailma; /archives//html/TenTec/2003-12/msg00805.html (7,229 bytes)
4. Re: [TenTec] 1 kHz IMD with Preamp ON/OFF (score: 1): Author: Bob Henderson <bob@cytanet.com.cy>; Date: Mon, 22 Dec 2003 07:02:56 +0000; I guess you're just about right Ken. Seems to me it confirms the 5 previous and invites the sixth. Whatever it is, it's a fistful or a mouthful for sure and P3F is a whole lot easier but only in cont; /archives//html/TenTec/2003-12/msg00806.html (8,083 bytes)
5. [TenTec] 1 kHz IMD with Preamp ON/OFF (score: 1): Author: Bill Tippett <btippett@alum.mit.edu>; Date: Mon, 22 Dec 2003 06:45:22 -0500; suspect accidental transposition of data as the cause. That's my guess also but QST's summary is consistent with the ETR graph, so it is not an obvious transposition as the IP2 results were. Will be; /archives//html/TenTec/2003-12/msg00807.html (8,653 bytes)
6. RE: [TenTec] 1 kHz IMD with Preamp ON/OFF (score: 1): Author: Eric Scace K3NA <eric@k3na.org>; Date: Mon, 22 Dec 2003 07:12:59 -0500; Bill -- I would be surprised if the built-in 1000 Hz filter has only 4 poles. I would have expected it to have 8 poles, like the 2.4 kHz filter. This would be interesting to clarify. -- Eric K3NA sus; /archives//html/TenTec/2003-12/msg00848.html (9,707 bytes)
7. RE: [TenTec] 1 kHz IMD with Preamp ON/OFF (score: 1): Author: "John L Merrill" <jmerrill1@adelphia.net>; Date: Mon, 22 Dec 2003 22:46:46 -0500; only 4 Bill -- I would be surprised if the built-in 1000 Hz filter has only 4 poles. I would have expected it to have 8 poles, like the 2.4 kHz filter. This would be interesting to clarify. -- Eric K; /archives//html/TenTec/2003-12/msg00850.html (10,403 bytes)
8. Re: [TenTec] 1 kHz IMD with Preamp ON/OFF (score: 1): Author: "Carl Moreschi" <n4py@earthlink.net>; Date: Tue, 23 Dec 2003 03:52:10 -0000; I've been misquoted on the 1000 hertz filter. I said it had a shape factor of 3 to 1 but I have not removed it and looked at to see how many poles it had. I believe Bill said it was a 4 pole. I do no; /archives//html/TenTec/2003-12/msg00851.html (11,781 bytes)
9. RE: [TenTec] 1 kHz IMD with Preamp ON/OFF (score: 1): Author: "John L Merrill" <jmerrill1@adelphia.net>; Date: Mon, 22 Dec 2003 22:58:03 -0500; Looking at the filter there are only 4 crystals. I've been misquoted on the 1000 hertz filter. I said it had a shape factor of 3 to 1 but I have not removed it and looked at to see how many poles it; /archives//html/TenTec/2003-12/msg00852.html (13,040 bytes)
10. Re: [TenTec] 1 kHz IMD with Preamp ON/OFF (score: 1): Author: "Carl Moreschi" <n4py@earthlink.net>; Date: Tue, 23 Dec 2003 04:12:05 -0000; That sounds like 4 poles to me. Carl Moreschi N4PY Franklinton, NC -- Original Message -- From: "John L Merrill" <jmerrill1@adelphia.net> To: <tentec@contesting.com> Sent: Tuesday, December 23, 2003; /archives//html/TenTec/2003-12/msg00854.html (14,378 bytes)

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