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1. [RTTY] Omni 6/FSK (score: 1): Author: "Mike Brown" <k9mi@sbcglobal.net>; Date: Thu, 4 Mar 2004 07:40:47 -0000; I'm new to RTTY contesting, and I know that I want to make the switch from AFSK to FSK with my Omni 6 opt 3. I have the parts to make the interfaces from the AA5AU web site, but in talking to Don, he; /archives//html/RTTY/2004-03/msg00030.html (6,452 bytes)
2. Re: [RTTY] Omni 6/FSK (score: 1): Author: "Jim McDonald" <n7us@arrl.net>; Date: Thu, 4 Mar 2004 04:04:44 -0700; Mike, I had the same radio before I bought an MP. The best RTTY filters were the Model 216 9 MHz 500 Hz centered for digital modes cascaded with the Model 282 250 Hz filter for CW. I think the 282 re; /archives//html/RTTY/2004-03/msg00034.html (8,043 bytes)
3. RE: [RTTY] Omni 6/FSK (score: 1): Author: Keith Regli <keith@kregli.com>; Date: Thu, 04 Mar 2004 10:41:11 -0700; I use the same scheme as Jim describes followed by a Timewave DSP-599. The combination is very good. You are right, the standard optical isolation circuit will result in an upside down signal. You ha; /archives//html/RTTY/2004-03/msg00036.html (9,349 bytes)
4. Re: [RTTY] Omni 6/FSK (score: 1): Author: K4SB <k4sb@earthlink.net>; Date: Thu, 04 Mar 2004 20:02:41 +0000; I go along with Keith's suggestion. But the solution is far more simple. All you have to do to key the OMNI 6 FSK is to build a standard transistor keying circuit, using a resister to the EMITTER of; /archives//html/RTTY/2004-03/msg00037.html (7,839 bytes)

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