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Re: LF: RTTY vs.MFSK

To: [email protected]
Subject: Re: LF: RTTY vs.MFSK
From: g3zjo <[email protected]>
Date: Wed, 06 Mar 2013 16:22:28 +0000
In-reply-to: <[email protected]>
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MFSK4 is slower than RTTY but live keyboard mode and has FEC.

I am looking for you now

73 Eddie
.
On 06/03/2013 16:12, Stefan Schäfer wrote:
Hi Eddie,

Yes, i can try. However i have no idea if it will be "better". Not an expert on the subject. What i like is such a fast mode like RTTY, maybe 40 Baud would be fine as well, but not much slower and no limited number of characters. I like the function to just write down and the program sends it immediately :-) So if there is another mode that has some error correction, it would be an improvement i think. And AMTOR has it, if i understood correctly. So what the hell is MFSK-4? Yes, Multi-Frequency-Shift-Keying with 4 tones, fine. But what does it offer? We can just try but i would like to understand at least basically what i'm doing.

I will now switch to MFSK-4, same QRG.

73, Stefan


Am 06.03.2013 16:33, schrieb g3zjo:
Hi Stefan

On 06/03/2013 15:09, Stefan Schäfer wrote:
Eddie, Gary, Chris, Minto, MF,

I've read a bit about RTTY and AMTOR in Wikipedia. Maybe AMTOR would help us a bit more, even when not used in that ARQ mode but also in beacon stile, due to the FEC?

MultiPSK has AMTOR with FEC, yes we don't want ARQ do we. I have run it, same width as RTTY the FEC may help but its just as fast it is QSO mode.

Again I will ask the question, why is MFSK not being considered I am running it at the moment on 478.200. MFSK4 is on Fldigi can you try it now.?

Eddie
Eddie, what was the name of the program that offers that mode for free? I cannot find your recent email where you already mentioned it.

73, Stefan








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