RTTY with the K3 alone
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I haven't worked RTTY since 1982 or so and have a K3. I've read the
info here: http://www.elecraft.com/K3/k3_operating_tips.htm#RTTY and then the section on RTTY operation without a computer. And the pages suggested in the manual. I still have some questions how best to set it up to work split and how to best set it up for contest / Dxpedition work. If you have this down pat, please contact me offlist, I'd like to get this understood better. Thanks Gary KA1J --- This email is free from viruses and malware because avast! Antivirus protection is active. http://www.avast.com ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html |
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On 2/3/2014 10:25 AM, Gary Smith wrote:
> I haven't worked RTTY since 1982 or so and have a K3. I've read the > info here:http://www.elecraft.com/K3/k3_operating_tips.htm#RTTY and > then the section on RTTY operation without a computer. And the pages > suggested in the manual. I've done this, but don't recommend it except when a computer is not available. A much better option is a P3 with the VGA module, which includes the ability to connect a USB keyboard via the P3. This setup provides very good display of decoded RTTY, CW, and PSK31 on the VGA display, the ability to send from the keyboard, and a bunch of memories. It uses the decoder in the K3, which is a VERY good one. A lot has changed about RTTY operation since 1982 (I did it then too). There are excellent software applications that generate both AFSK and FSK, and provide excellent decoding of signals with flutter and other distortions. MMTTY is VERY widely used, and there are several others. If you're running either WriteLog or N1MM, you can add a decoder called 2Tone to MMTTY, which allows you to have multiple decoders running at the same time. This can help a lot to minimize decoding errors. When I want to work a DXpedition, I use the combination of MMTTY and he P3 for decoding, again to minimize decoding errors. For RTTY contesting, I use N1MM with MMTTY and 2Tone. 73, Jim K9YC ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html |
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> On 2/3/2014 10:25 AM, Gary Smith wrote: > > I haven't worked RTTY since 1982 or so and have a K3. I've read the > > info here:http://www.elecraft.com/K3/k3_operating_tips.htm#RTTY and > > then the section on RTTY operation without a computer. And the pages > > suggested in the manual. > > I've done this, but don't recommend it except when a computer is not > available. A much better option is a P3 with the VGA module, which > includes the ability to connect a USB keyboard via the P3. This setup > provides very good display of decoded RTTY, CW, and PSK31 on the VGA > display, the ability to send from the keyboard, and a bunch of memories. > It uses the decoder in the K3, which is a VERY good one. > > A lot has changed about RTTY operation since 1982 (I did it then too). > There are excellent software applications that generate both AFSK and > FSK, and provide excellent decoding of signals with flutter and other > distortions. MMTTY is VERY widely used, and there are several others. If > you're running either WriteLog or N1MM, you can add a decoder called > 2Tone to MMTTY, which allows you to have multiple decoders running at > the same time. This can help a lot to minimize decoding errors. > > When I want to work a DXpedition, I use the combination of MMTTY and he > P3 for decoding, again to minimize decoding errors. For RTTY contesting, > I use N1MM with MMTTY and 2Tone. > > 73, Jim K9YC Jim, I'd love a P3 but at this time it's not likely unless I win the big one. I'm parent wrangling a 97 year old at the moment and have stopped work to do so, so my income is zero & I'm living off savings. That said, I'm always looking for the right deal to come by on a used one, just haven't found it yet. I just downloaded MMTTY and will see what I can do with it with my computer. I sure do appreciate the advice. & BTW, back in 82 I was using an Apple II+ with integer basic and one of those huge cards inside to decode RTTY & CW. That card & computer worked really well. Don't remember who made it but I sold that computer & a 72 BMW 3.0 CSL for going back to college money. Wish I had both of those right now! 73, Gary KA1J --- This email is free from viruses and malware because avast! Antivirus protection is active. http://www.avast.com ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html |
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In reply to this post by Gary Smith-2
Hi all.
Yes Jim you right. Even with some difficulties, i.e. re-key each time the call sign of the correspondent, it work better with an external keyboard. THis using the K3/P# combo without a PC. On the other side, using even a Net PC with just MMTTY, But also the old and trusted MMTTY may work flawlessly. Both FSK or AFSK. 2Tone is a great decoder and a great companion for MMTTY in FSK. Those different setups depend on relevant interfaces that each of us have on hands, PC capabilities and, why not, real estate of the monitor/screen we have ... that's clear. But still MMTTY alone and in AFSK is well working. Not having all the N1MM Logger needs about setup. Thus loosing the great 2Tone. But, please, when going with a PC and MMTTY alone take care to get into the TX tones setup: Option (O) > Setup MMTTY(O) > TX tab > TXbpf. There the standard tap default value is 48, pushing the "f" key on the left will show the simulated filter curve. To have a better AFSK bandwidth set the tap value to 256 and up, press again the f button to show simulated curves and effects on the output tones bandwidth. Tight is better, bigger tap values are better. But they are somewhat CPU intensive, be smart and use intermediate values with older laptops.Make it better for others than the default, but be lower than 512 taps on single core, i.e. slow, machines. 73 de iw1ayd Salvo > > Message: 2 > Date: Tue, 04 Feb 2014 10:15:38 -0800 > From: Jim Brown <[hidden email]> > To: [hidden email] > Subject: Re: [Elecraft] RTTY with the K3 alone > Message-ID: <[hidden email]> > Content-Type: text/plain; charset=ISO-8859-1; format=flowed > > On 2/3/2014 10:25 AM, Gary Smith wrote: >> I haven't worked RTTY since 1982 or so and have a K3. I've read the >> info here:http://www.elecraft.com/K3/k3_operating_tips.htm#RTTY and >> then the section on RTTY operation without a computer. And the pages >> suggested in the manual. > > I've done this, but don't recommend it except when a computer is not > available. A much better option is a P3 with the VGA module, which > includes the ability to connect a USB keyboard via the P3. This setup > provides very good display of decoded RTTY, CW, and PSK31 on the VGA > display, the ability to send from the keyboard, and a bunch of memories. > It uses the decoder in the K3, which is a VERY good one. > > A lot has changed about RTTY operation since 1982 (I did it then too). > There are excellent software applications that generate both AFSK and > FSK, and provide excellent decoding of signals with flutter and other > distortions. MMTTY is VERY widely used, and there are several others. If > you're running either WriteLog or N1MM, you can add a decoder called > 2Tone to MMTTY, which allows you to have multiple decoders running at > the same time. This can help a lot to minimize decoding errors. > > When I want to work a DXpedition, I use the combination of MMTTY and he > P3 for decoding, again to minimize decoding errors. For RTTY contesting, > I use N1MM with MMTTY and 2Tone. > > 73, Jim K9YC > Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html |
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