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1. [TenTec] UCW and LCW (score: 1): Author: "John B. Egger" <john_egger@comcast.net>; Date: Sat, 28 Oct 2006 00:47:43 +0000; I'm a bit puzzled by these two O-2 modes. When UCW is selected, the lower CW sideband is audible; that is, if zero-beat is 7020, to hear the signal one tunes down to 7019 etc. When LCW is chosen, one; /archives//html/TenTec/2006-10/msg00650.html (7,806 bytes)
2. Re: [TenTec] UCW and LCW (score: 1): Author: "Grant Youngman" <nq5t@comcast.net>; Date: Fri, 27 Oct 2006 19:57:47 -0500; Think again :=) If the carrier is at 7.020, and you are in UCW, you would tune DOWN to 7.019 to hear the signal (with a 1 Khz note). It's no different than USB SSB. If you are tuned to 7.019, and he; /archives//html/TenTec/2006-10/msg00651.html (8,424 bytes)
3. Re: [TenTec] UCW and LCW (score: 1): Author: "Carl Moreschi" <n4py@arrl.net>; Date: Fri, 27 Oct 2006 20:58:11 -0400; Nope. An LCW signal goes up in pitch when you increase frequency. A UCW signal goes down in pitch when you tune up in frequency. Carl Moreschi N4PY 121 Little Bell Drive Bell Mountain Hays, NC 28635; /archives//html/TenTec/2006-10/msg00652.html (9,401 bytes)
4. Re: [TenTec] UCW and LCW (score: 1): Author: Ken Brown <ken.d.brown@hawaiiantel.net>; Date: Fri, 27 Oct 2006 15:20:46 -1000; On Upper Sideband an audio note is heard when a signal is ABOVE the "effective BFO frequency" and in order to bring that note to zero beat, one must tune upward, lowering the pitch of the audio note; /archives//html/TenTec/2006-10/msg00653.html (11,103 bytes)
5. Re: [TenTec] UCW and LCW (score: 1): Author: K4IA@aol.com; Date: Fri, 27 Oct 2006 21:37:21 EDT; On Upper Sideband an audio note is heard when a signal is ABOVE the "effective BFO frequency" and in order to bring that note to zero beat, one must tune upward, lowering the pitch of the audio note; /archives//html/TenTec/2006-10/msg00654.html (7,283 bytes)
6. Re: [TenTec] UCW and LCW (score: 1): Author: "John T. Fleming" <W3GQJ@earthlink.net>; Date: Fri, 27 Oct 2006 21:48:34 -0400; John, When you go to LCW or UCW, the receiver is offset by the frequency of the "spot" frequency. Some times I have to check into the Badger Weather Net on 3985 on CW even though it is SSB. When I ch; /archives//html/TenTec/2006-10/msg00655.html (9,193 bytes)
7. Re: [TenTec] UCW and LCW (score: 1): Author: Ken Brown <ken.d.brown@hawaiiantel.net>; Date: Fri, 27 Oct 2006 16:47:13 -1000; Hi Craig, It is on the upper side. That is why as you tune higher up, it becomes less on the upper side and the audio note gets lower. When the signal is on the upper side (higher frequency side) of; /archives//html/TenTec/2006-10/msg00656.html (9,083 bytes)
8. Re: [TenTec] UCW and LCW (score: 1): Author: Ken Brown <ken.d.brown@hawaiiantel.net>; Date: Fri, 27 Oct 2006 17:05:03 -1000; This feature of modern rigs further confuses the issue. In SSB service, the dial (or digital) frequency readout indicates the frequency of a carrier that would be zero beat. Signals either side of t; /archives//html/TenTec/2006-10/msg00657.html (10,788 bytes)
9. Re: [TenTec] UCW and LCW (score: 1): Author: "Dr. Gerald N. Johnson" <geraldj@storm.weather.net>; Date: Fri, 27 Oct 2006 21:19:31 -0600; The government has been using center of channel since AM days. That way they don't have to redefine the channel for different modes, whether AM, FM, CW, RTTY, or others. Trouble is those users with h; /archives//html/TenTec/2006-10/msg00658.html (9,893 bytes)
10. Re: [TenTec] UCW and LCW (score: 1): Author: "John B. Egger" <john_egger@comcast.net>; Date: Sun, 29 Oct 2006 01:01:58 +0000; --John K3GHH Registered Linux User #291592 _______________________________________________ TenTec mailing list TenTec@contesting.com http://lists.contesting.com/mailman/listinfo/tentec; /archives//html/TenTec/2006-10/msg00661.html (8,608 bytes)
11. Re: [TenTec] UCW and LCW (score: 1): Author: "Steve Hunt" <steve@karinya.net>; Date: Sun, 29 Oct 2006 19:14:41 -0000; John, I'm not an Orion owner, but if it's the same as most other rigs ..... When switched to UCW the receiver will pick up CW signals that are higher than the displayed frequency When switched to LCW; /archives//html/TenTec/2006-10/msg00671.html (9,674 bytes)
12. Re: [TenTec] UCW and LCW (score: 1): Author: Martin AA6E <aa6e@ewing.homedns.org>; Date: Sun, 29 Oct 2006 17:25:43 -0500; Yes for some radios, but not the Orion. The Orion "dial" frequency is the center of the passband for LCW or UCW if PBT=0. An incoming signal at that freq. produces a tone at the sidetone/spot freq.,; /archives//html/TenTec/2006-10/msg00677.html (9,842 bytes)
13. Re: [TenTec] UCW and LCW (score: 1): Author: "Steve Hunt" <steve@karinya.net>; Date: Sun, 29 Oct 2006 22:48:22 -0000; Martin, Thanks for explaining how the Orion does it! I'm in the "dark ages" here with a 20 year old Corsair II. Press the "spot" button and it pulls the carrier insertion oscillator to the freq it'll; /archives//html/TenTec/2006-10/msg00679.html (10,395 bytes)
14. Re: [TenTec] UCW and LCW (score: 1): Author: "Duane Calvin" <ac5aa1@gmail.com>; Date: Sun, 29 Oct 2006 18:19:26 -0600; There are two ways this is useful that I'm aware of. First, if you are used to some other brands of radios, they use UCW. Others use LCW, so it could be just to match what you're used to. But the rea; /archives//html/TenTec/2006-10/msg00682.html (10,565 bytes)
15. Re: [TenTec] UCW and LCW (score: 1): Author: "Dr. Gerald N. Johnson" <geraldj@storm.weather.net>; Date: Sun, 29 Oct 2006 20:58:05 -0600; When working VHF with transverters, its really handy to be able to work CW and SSB without retuning and so to work CW on the USB mode. Not all radio makers understand that and some shift the receiver; /archives//html/TenTec/2006-10/msg00687.html (9,901 bytes)
16. Re: [TenTec] UCW and LCW (score: 1): Author: Sinisa Hristov <shristov@ptt.yu>; Date: Mon, 30 Oct 2006 02:42:12 -0500; This won't work on Orion. Switching from UCW to LCW will not make any difference in attenuation of unwanted signals. Only the audio frequencies will change. Page 15 of the Orion 565 manual contains a; /archives//html/TenTec/2006-10/msg00691.html (8,850 bytes)
17. Re: [TenTec] UCW and LCW (score: 1): Author: "Ron Morell" <ron@morell.us>; Date: Mon, 30 Oct 2006 08:17:57 -0700; This is interesting Sinisa. I wonder if the ORION and ORION II operate the same in this regard. I notice on my ORION II that the tone of the received signal is the same in LCW or UCW as long as the r; /archives//html/TenTec/2006-10/msg00704.html (10,720 bytes)
18. Re: [TenTec] UCW and LCW (score: 1): Author: Sinisa Hristov <shristov@ptt.yu>; Date: Fri, 03 Nov 2006 14:34:49 -0500; Ron, could you, please, try it again, taking care about following: a) exactly the same BW is used on both UCW and LCW (BW can be altered by pressing LCW/UCW); b) PBT = 0; c) the roofing filter used i; /archives//html/TenTec/2006-11/msg00052.html (7,114 bytes)
19. Re: [TenTec] UCW and LCW (score: 1): Author: "Ron" <ron@morell.us>; Date: Fri, 3 Nov 2006 17:56:56 -0700; Sinisa, Since I first replied to your post, I've worked through this more carefully. The setup: BW @ 600 Hz (using a 600 Hz roofing filter) PBT=0 With this setup, the frequency of an interfering sign; /archives//html/TenTec/2006-11/msg00057.html (8,985 bytes)

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