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Total 18 documents matching your query.

1. [TenTec] FT-2000 Webpage (score: 1): Author: Bill Tippett <btippett@alum.mit.edu>; Date: Mon, 29 May 2006 08:56:08 -0400; http://foxtango.org/FT-2000/FT-2000.htm I really like the RX setup display using a block diagram. Reminds me a little of K6STI's DSP Blaster display. http://foxtango.org/FT-2000/Images/0215disp.jpg T; /archives//html/TenTec/2006-05/msg00726.html (6,742 bytes)
2. Re: [TenTec] FT-2000 Webpage (score: 1): Author: Duane A Calvin <ac5aa@juno.com>; Date: Mon, 29 May 2006 09:02:43 -0500; Two questions about the FT-2000 I had intended to ask Chip Margelli while at Dayton and I forgot: 1. Did they finally fix the legendary Yaesu key click problem? 2. Did they finally fix the legendary; /archives//html/TenTec/2006-05/msg00729.html (8,596 bytes)
3. Re: [TenTec] FT-2000 Webpage (score: 1): Author: "G" <goofyham@highstream.net>; Date: Mon, 29 May 2006 10:31:38 -0400; I still can't understand why Yeasu and Icom don't use close in filters like the Orion2??? I'll have to wait until the testing is done on this unit in close in 2KHZ dynamic range and where it falls in; /archives//html/TenTec/2006-05/msg00730.html (7,577 bytes)
4. Re: [TenTec] FT-2000 Webpage (score: 1): Author: EL34GUY@aol.com; Date: Mon, 29 May 2006 10:40:42 EDT; I think the roofing filters are in the Yaesu Ft9000 and Ft2000? Not real sure on the new Yaesu 2000 model. I believe the Icom 7800 does too, but both the 7800 and 9000 are out of my price range at th; /archives//html/TenTec/2006-05/msg00731.html (7,241 bytes)
5. Re: [TenTec] FT-2000 Webpage (score: 1): Author: Jim McDonald <jim@n7us.net>; Date: Mon, 29 May 2006 07:43:57 -0700; I asked him about the key clicks, and he responded that the CW shaping control solved the problem. Jim N7US AC5AA: Two questions about the FT-2000 I had intended to ask Chip Margelli while at Dayton; /archives//html/TenTec/2006-05/msg00732.html (7,551 bytes)
6. [TenTec] FT-2000 Webpage (score: 1): Author: Bill Tippett <btippett@alum.mit.edu>; Date: Mon, 29 May 2006 11:49:57 -0400; the Orion2??? It's a problem fundamental to the design of the rigs. All Japanese rigs offer general coverage and use an up-conversion IF scheme. This puts their 1st IF at typically 40 or 70 MHz. Mos; /archives//html/TenTec/2006-05/msg00733.html (9,711 bytes)
7. Re: [TenTec] FT-2000 Webpage (score: 1): Author: "John T. Fleming" <W3GQJ@earthlink.net>; Date: Mon, 29 May 2006 11:50:50 -0400; George, If you look at the design of the Orion I, it is using "old design techniques" of converting the first IF to 9 MHz. It is much easier to make a tight roofing filter at 9 MHz then one at 45 MHz; /archives//html/TenTec/2006-05/msg00734.html (8,735 bytes)
8. Re: [TenTec] FT-2000 Webpage (score: 1): Author: "Ralph Howes" <rhowes@greenapple.com>; Date: Mon, 29 May 2006 12:11:36 -0400; When did this reflector turn into a Yaseu reflector. I enjoy the info but supposed to be TT. Best Regards to all the Vets........ Ralph Howes W8BVH USS Newport News (CA-148) 62-63 ___________________; /archives//html/TenTec/2006-05/msg00735.html (10,071 bytes)
9. Re: [TenTec] FT-2000 Webpage (score: 1): Author: KA5M@aol.com; Date: Mon, 29 May 2006 13:02:58 EDT; Frankly I found the posts on the new Yaesu FT-2000 interesting and informative. I was especially interested in the discussion about how the difference in IF frequency between the FT-2000 and ORION re; /archives//html/TenTec/2006-05/msg00737.html (7,861 bytes)
10. Re: [TenTec] FT-2000 Webpage (score: 1): Author: "Dr. Gerald N. Johnson" <geraldj@storm.weather.net>; Date: Mon, 29 May 2006 11:33:05 -0500; Besides the difficulties of making a sharp filter at 45 or 75 MHz, there are some other factors. For sure the Yeacomwood roofing filter has to be 15 KHz wide as a minimum to pass FM for the top end o; /archives//html/TenTec/2006-05/msg00738.html (9,320 bytes)
11. Re: [TenTec] FT-2000 Webpage (score: 1): Author: "Ron Castro" <ronc@sonic.net>; Date: Mon, 29 May 2006 11:23:21 -0700; My understanding is that IMD damage gets done in the first IF. Once the IMD artifacts are created, no amount of narrow filtering later on down the line will remove the ones that fall into the desired; /archives//html/TenTec/2006-05/msg00739.html (9,791 bytes)
12. Re: [TenTec] FT-2000 Webpage (score: 1): Author: "Dr. Gerald N. Johnson" <geraldj@storm.weather.net>; Date: Mon, 29 May 2006 13:14:31 -0500; Yes, the close in intermod happens in the first IF and the second mixer of the yaecomwood receiver. It can be prevented, at some cost, by being careful with the mixer terminations, the mixer power ca; /archives//html/TenTec/2006-05/msg00740.html (10,559 bytes)
13. Re: [TenTec] FT-2000 Webpage (score: 1): Author: "Grant Youngman" <nq5t@comcast.net>; Date: Mon, 29 May 2006 14:16:17 -0500; Huh? What does that mean? Are yo implying that all of the iflters in the Orion aren't roofing filters (there is no Orion I)? Funny how well those "old design techniques" work ... Grant/NQ5T ________; /archives//html/TenTec/2006-05/msg00741.html (8,296 bytes)
14. Re: [TenTec] FT-2000 Webpage (score: 1): Author: "John T. Fleming" <W3GQJ@earthlink.net>; Date: Mon, 29 May 2006 16:14:12 -0400; Grant, I guess we don't have a complete meeting of the minds. It seems that all new equipment designs are using the conversion to a very high IF frequency, allowing continuous tuning. Ten-Tec chose i; /archives//html/TenTec/2006-05/msg00742.html (10,106 bytes)
15. Re: [TenTec] FT-2000 Webpage (score: 1): Author: Ken Brown <ken.d.brown@hawaiiantel.net>; Date: Mon, 29 May 2006 10:42:44 -1000; In order for us to have an intelligent discussion about roofing filters, we need to agree on a definition of roofing filter. I don't recall hearing that term prior to a few years ago. By the usage I; /archives//html/TenTec/2006-05/msg00745.html (9,448 bytes)
16. Re: [TenTec] FT-2000 Webpage (score: 1): Author: "Dr. Gerald N. Johnson" <geraldj@storm.weather.net>; Date: Mon, 29 May 2006 15:22:46 -0500; I'd say the roofing filter is the filter that determines the intermod bandwidth. Typically it is in the first IF, should be very close to the output of the first mixer, but there may be a very broad; /archives//html/TenTec/2006-05/msg00748.html (11,722 bytes)
17. Re: [TenTec] FT-2000 Webpage (score: 1): Author: Ken Brown <ken.d.brown@hawaiiantel.net>; Date: Mon, 29 May 2006 12:31:38 -1000; An LC bandpass filter will determine the intermod bandwidth of a preamp before any mixer stage. So, is it a roofing filter? An example of a filter before a mixer stage. Is it a roofing filter? DE N6; /archives//html/TenTec/2006-05/msg00755.html (9,604 bytes)
18. Re: [TenTec] FT-2000 Webpage (score: 1): Author: "Ralph Howes" <rhowes@greenapple.com>; Date: Mon, 29 May 2006 21:19:31 -0400; Marsh: Good advise. Sorry I posted. Hope all had a nice holiday..... Ralph Howes W8BVH _______________________________________________ TenTec mailing list TenTec@contesting.com http://lists.contestin; /archives//html/TenTec/2006-05/msg00763.html (9,171 bytes)

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