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1. [TenTec] OMNI VI Chirp Report (score: 1): Author: "N4YG" <n4yg@comcast.net>; Date: Sun, 17 Feb 2008 09:02:12 -0600; I received a report of chirp on the signal from my OMNI VI+ during a recent CW qso. The person who gave the report indicated that it was not "bad" chirp and added that he hears chirp on almost every; /archives//html/TenTec/2008-02/msg00204.html (7,745 bytes)
2. Re: [TenTec] OMNI VI Chirp Report (score: 1): Author: "Andrew Moore" <andrew.nv1b@gmail.com>; Date: Sun, 17 Feb 2008 10:26:30 -0500; << I received a report of chirp on the signal from my OMNI VI+ during a recent CW qso. The person who gave the report indicated that it was not "bad" chirp and added that he hears chirp on almost eve; /archives//html/TenTec/2008-02/msg00205.html (8,154 bytes)
3. Re: [TenTec] OMNI VI Chirp Report (score: 1): Author: VE1BN <ve1bn@eastlink.ca>; Date: Sun, 17 Feb 2008 11:54:55 -0400; Joe - What is the number on your logic eprom? Check the version of U4. There are two "U5s" in my manual. The one farthest from the Battery backup should be U4, not U5. It is LOGIC EPROM in the manual; /archives//html/TenTec/2008-02/msg00206.html (8,665 bytes)
4. Re: [TenTec] OMNI VI Chirp Report (score: 1): Author: "Paul Christensen" <w9ac@arrl.net>; Date: Sun, 17 Feb 2008 11:23:14 -0500; Joe: If you check the TT archives from about 10-12 years ago, you'll see plenty of my posts on this subject. I spent about six months searching for the problem and ultimately came up with a solution; /archives//html/TenTec/2008-02/msg00207.html (9,576 bytes)
5. Re: [TenTec] OMNI VI Chirp Report (score: 1): Author: VE1BN <ve1bn@eastlink.ca>; Date: Sun, 17 Feb 2008 19:26:50 -0400; Paul - I understand T-T changed the transmit audio/BFO board crystal frequency adjustment from 9.000700 mHz to 9.000400 mHz. Apparently this was done as part of eliminating the small chirp. Moving th; /archives//html/TenTec/2008-02/msg00217.html (11,486 bytes)
6. Re: [TenTec] OMNI VI Chirp Report (score: 1): Author: "Paul Christensen" <w9ac@arrl.net>; Date: Sun, 17 Feb 2008 18:57:17 -0500; Don, First, not every Omni VI/VI+ exhibits the chirp phenomenon -- either through evolutionary changes, or component tolerances that allowed some Omnis to sound just fine. Next, check your data as it; /archives//html/TenTec/2008-02/msg00218.html (10,270 bytes)
7. Re: [TenTec] OMNI VI Chirp Report (score: 1): Author: VE1BN <ve1bn@eastlink.ca>; Date: Sun, 17 Feb 2008 20:33:26 -0400; Paul - What ur QRG ? Don -- Original Message -- From: "Paul Christensen" <w9ac@arrl.net> To: "Discussion of Ten-Tec Equipment" <tentec@contesting.com> Sent: Sunday, February 17, 2008 7:57 PM Subject:; /archives//html/TenTec/2008-02/msg00220.html (11,298 bytes)
8. Re: [TenTec] OMNI VI Chirp Report (score: 1): Author: "N4YG" <n4yg@comcast.net>; Date: Sun, 17 Feb 2008 20:58:58 -0600; Well it seems that Don is very happy with the Logic EPROM version 1.02 solution, but Paul says it only partially masks the problem at the expense of QSK. What is the effect on QSK? I guess I will jus; /archives//html/TenTec/2008-02/msg00221.html (7,778 bytes)
9. Re: [TenTec] OMNI VI Chirp Report (score: 1): Author: "Paul Christensen" <w9ac@arrl.net>; Date: Mon, 18 Feb 2008 09:24:15 -0500; Joe, I would experiment with both EPROMs and use the one that works best for you. If you are satisfied with the sound of the transmitted CW tone, then I would leave it alone. You may find that after; /archives//html/TenTec/2008-02/msg00228.html (9,260 bytes)
10. Re: [TenTec] OMNI VI Chirp Report (score: 1): Author: VE1BN <ve1bn@eastlink.ca>; Date: Mon, 18 Feb 2008 12:36:16 -0400; Joe, N4YG - I work fast (enough) CW with full QSK with my OMNI 6+ and a home brewed linear 500 Watt QSK amplifier. QSK was added to my amp by copying the Titan's circuitry and making the boards that; /archives//html/TenTec/2008-02/msg00234.html (9,672 bytes)
11. Re: [TenTec] OMNI VI Chirp Report (score: 1): Author: "Carl Moreschi" <n4py@arrl.net>; Date: Mon, 18 Feb 2008 11:40:55 -0500; So what was the final verdict. Do you have a chirp or not? Carl Moreschi N4PY 121 Little Bell Drive Bell Mountain Hays, NC 28635 -- Original Message -- From: "VE1BN" <ve1bn@eastlink.ca> To: "N4YG" <n; /archives//html/TenTec/2008-02/msg00235.html (10,774 bytes)
12. Re: [TenTec] OMNI VI Chirp Report (score: 1): Author: VE1BN <ve1bn@eastlink.ca>; Date: Mon, 18 Feb 2008 12:52:33 -0400; Carl - Yes, Paul said there was a very slight chirp that he noted. His ears are a lot better than mine, obviously. I see nothing though on my Philips 120 meg scope when watching the RF output from an; /archives//html/TenTec/2008-02/msg00236.html (11,861 bytes)
13. Re: [TenTec] OMNI VI Chirp Report (score: 1): Author: "Paul Christensen" <w9ac@arrl.net>; Date: Mon, 18 Feb 2008 13:09:02 -0500; Don's input helped to shake some cobwebs loose... TT initially shifted the CW BFO from the USB crystal. Then, I believe in an effort to help eradicate the chirp, a later design shifted the LSB crysta; /archives//html/TenTec/2008-02/msg00248.html (10,214 bytes)
14. Re: [TenTec] OMNI VI Chirp Report (score: 1): Author: "Lyle Dunlap" <qskqrq@grics.net>; Date: Mon, 18 Feb 2008 16:10:57 -0600; At what speed? Lyle W9FCX _______________________________________________ TenTec mailing list TenTec@contesting.com http://lists.contesting.com/mailman/listinfo/tentec; /archives//html/TenTec/2008-02/msg00265.html (8,433 bytes)
15. Re: [TenTec] OMNI VI Chirp Report (score: 1): Author: "Alfred Lorona" <w6wqc@dslextreme.com>; Date: Mon, 18 Feb 2008 15:57:01 -0800; Easy way to check for keying chirp on an Omni 6+, or any other rig for that matter, is to put it on 160 meters and listen to the 16 th harmonic on the ten meter band. Any chirp will be magnified 16 t; /archives//html/TenTec/2008-02/msg00276.html (9,138 bytes)
16. Re: [TenTec] OMNI VI Chirp Report (score: 1): Author: "N4YG" <n4yg@comcast.net>; Date: Mon, 18 Feb 2008 18:19:36 -0600; To answer Carl's question, there is a problem with keying, but I would not call it chirp. I do not hear a change in frequency across the cw dot or dash. I do not like the sound of what I hear. It doe; /archives//html/TenTec/2008-02/msg00278.html (8,808 bytes)
17. Re: [TenTec] OMNI VI Chirp Report (score: 1): Author: Ken Brown <ken.d.brown@hawaiiantel.net>; Date: Mon, 18 Feb 2008 17:09:50 -1000; Of course you want to like what you hear. At this point, since you don't like it, I think you should be looking for a way to find out what it really is doing. If you have determined there is not a f; /archives//html/TenTec/2008-02/msg00281.html (9,383 bytes)
18. Re: [TenTec] OMNI VI Chirp Report (score: 1): Author: Dennis Ashworth <K7FL@arrl.net>; Date: Mon, 18 Feb 2008 19:16:03 -0800; Could it be the PTT going out of lock momentarily? That makes a kind of "blurp" sound. In my case it was limited to a single band. Dennis, K7FL == _______________________________________________ TenT; /archives//html/TenTec/2008-02/msg00283.html (9,889 bytes)
19. Re: [TenTec] OMNI VI Chirp Report (score: 1): Author: "Paul Christensen" <w9ac@arrl.net>; Date: Tue, 19 Feb 2008 07:13:56 -0500; Joe, I am not sure how much effort you want to put into this after the changing EPROM chips. Between now and then you can perform two simple tests... First, change mode to FSK and alternate between; /archives//html/TenTec/2008-02/msg00293.html (9,155 bytes)
20. Re: [TenTec] OMNI VI Chirp Report (score: 1): Author: "N4YG" <n4yg@comcast.net>; Date: Sun, 24 Feb 2008 16:01:41 -0600; Well the matter of alleged chirp in my OMNI VI+ has finally reached a happy ending. You may be interested in my assessment of the whole matter. I hope I will not offend anyone, however I am not sure; /archives//html/TenTec/2008-02/msg00402.html (9,721 bytes)

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