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21. Re: [RTTY] 2 tone vs MMTTY (score: 1): Author: "David G3YYD" <g3yyd@btinternet.com>; Date: Thu, 12 Jun 2014 09:14:46 -0500; Yes like all engineering there are some tradeoffs to be made between "Cost" and "Benefit". Ideally 2Tone would do an early decode and then a while later would update the earlier decode with an improv; /archives//html/RTTY/2014-06/msg00185.html (13,204 bytes)
22. Re: [RTTY] Help with MMTTY (score: 1): Author: "David G3YYD" <g3yyd@btinternet.com>; Date: Sun, 15 Jun 2014 05:52:50 -0500; I would go further than Joe and say set the BPF to 512 taps. Modern processors are so powerful no need to worry about CPU load. 73 David Turn on NET. *WARNING* if you transmit AFSK with a tone below; /archives//html/RTTY/2014-06/msg00217.html (9,834 bytes)
23. Re: [RTTY] MMTTY, permanently disable AFC (score: 1): Author: "David G3YYD" <g3yyd@btinternet.com>; Date: Mon, 16 Jun 2014 12:51:00 -0500; Tim 2 places to look. One is Di menu, Setup, drop down menu and the other is Di menu, Setup, Settings, MMTTY tab. 73 David I upgraded N1MM last week and now whenever I switch to RTTY mode I find that; /archives//html/RTTY/2014-06/msg00221.html (7,638 bytes)
24. Re: [RTTY] MMTTY, permanently disable AFC (score: 1): Author: "David G3YYD" <g3yyd@btinternet.com>; Date: Tue, 17 Jun 2014 11:20:52 -0500; Tim MMTTY moves the tone frequencies under its AFC system. 2Tone leaves the tone frequencies as they are and then uses the AFC value to offset to where the signal is. It also limits the AFC value to; /archives//html/RTTY/2014-06/msg00226.html (9,641 bytes)
25. Re: [RTTY] MMTTY, permanently disable AFC (score: 1): Author: "David G3YYD" <g3yyd@btinternet.com>; Date: Wed, 18 Jun 2014 07:13:53 -0500; I have never used FSK and never will. It is not flexible and occupies too much bandwidth (K3 excepted). Often FSK is sent with timing jitter too. With AFSK, when S&P you copy a call and you hit enter; /archives//html/RTTY/2014-06/msg00234.html (10,215 bytes)
26. Re: [RTTY] 2 tone vs MMTTY (score: 1): Author: "David G3YYD" <g3yyd@btinternet.com>; Date: Sun, 22 Jun 2014 16:28:15 -0500; John Assuming you have the correct sound card set up and mark and space frequencies. Then there is only one thing to change and that is the propagation type. Two of the four types will cover most of; /archives//html/RTTY/2014-06/msg00274.html (10,146 bytes)
27. [RTTY] 2Tone updated (score: 1): Author: "David G3YYD" <g3yyd@btinternet.com>; Date: Sat, 12 Jul 2014 10:48:18 -0500; This is available here: https://groups.yahoo.com/neo/groups/N1MMLogger-Digital/files/G3YYD/ The major changes are: Now does FSK TX via COM port with choice of DTR/RTS/TxD output and compatible with N; /archives//html/RTTY/2014-07/msg00029.html (7,078 bytes)
28. Re: [RTTY] The RTTY efficiency myth and SUPERFILL (score: 1): Author: "David G3YYD" <g3yyd@btinternet.com>; Date: Thu, 17 Jul 2014 12:31:44 -0500; The messages when running are interesting. I normally use HISCALL 599001 001 HISCALL. The reasoning is as follows. If I am working through a number of stations calling then often the first call sent; /archives//html/RTTY/2014-07/msg00065.html (10,635 bytes)
29. Re: [RTTY] The RTTY efficiency myth and SUPERFILL (score: 1): Author: "David G3YYD" <g3yyd@btinternet.com>; Date: Thu, 17 Jul 2014 14:58:10 -0500; Jeff If you use N1MM then N2AMG is very nifty with the programming. Click on 599001 when on the exchange window guess what no 599 appears... It is even clever on processing time exchange used for the; /archives//html/RTTY/2014-07/msg00069.html (10,495 bytes)
30. [RTTY] 2Tone 14.7b (score: 1): Author: "David G3YYD" <g3yyd@btinternet.com>; Date: Thu, 17 Jul 2014 15:05:53 -0500; Just uploaded a new version of 2Tone that fixes COM port FSK initialisation logic plus adds in a PTT option on the same COM port. It no longer releases COM port for use by other software when receivi; /archives//html/RTTY/2014-07/msg00070.html (6,954 bytes)
31. [RTTY] 2Tone Update 14.08a (score: 1): Author: "David G3YYD" <g3yyd@btinternet.com>; Date: Sat, 02 Aug 2014 05:19:49 -0500; New version of 2Tone released which can be found here https://groups.yahoo.com/neo/groups/N1MMLogger-Digital/files/G3YYD/ The updates are to do with the logger interface. No change to decode efficacy; /archives//html/RTTY/2014-08/msg00000.html (6,770 bytes)
32. [RTTY] 2Tone 14.08b now available (score: 1): Author: "David G3YYD" <g3yyd@btinternet.com>; Date: Wed, 06 Aug 2014 08:55:19 -0500; The only difference is: When going to FSK transmit the priority class is changed from normal to high. User feedback indicated on slower CPUs a high CPU priority was required. It change back to Normal; /archives//html/RTTY/2014-08/msg00010.html (6,636 bytes)
33. [RTTY] 2Tone 14.08d Doc Update (score: 1): Author: "David G3YYD" <g3yyd@btinternet.com>; Date: Wed, 24 Sep 2014 04:19:46 -0500; I have updated the documentation on setting "stuff" off for Digikeyer II, microKEYER II, MK2R+ and micro2R (microHAM Router) interface boxes when using 2Tone FSK. There is no change to 2Tone code. Th; /archives//html/RTTY/2014-09/msg00078.html (6,883 bytes)
34. Re: [RTTY] RTTY Tx options - advice requested (score: 1): Author: "David G3YYD" <g3yyd@btinternet.com>; Date: Mon, 01 Dec 2014 13:18:25 -0500; Dave You are using a K3. I tried to overdrive my K3 by turning all the "knobs to the right" on the K3 and the PC sound card. I then listened on my other K3 and I could not hear any audio harmonics at; /archives//html/RTTY/2014-12/msg00003.html (9,957 bytes)
35. Re: [RTTY] TinyFSK vs MMTTYFSK (score: 1): Author: "David G3YYD" <g3yyd@btinternet.com>; Date: Tue, 23 Dec 2014 05:27:59 -0500; Yes decidedly so. It is exactly timed for best performance and will be as good as sound card AFSK but the resultant on air signal will be a lot wider than an AFSK generated one. (The only rig I know; /archives//html/RTTY/2014-12/msg00086.html (8,363 bytes)
36. Re: [RTTY] WHY put CQ at the end? (score: 1): Author: "David G3YYD" <g3yyd@btinternet.com>; Date: Tue, 17 Feb 2015 15:13:25 -0500; In the recent CQWPXRTTY no skimmer spotted me... I suspect it is because my contest callsign is so short. My CQ call was: CQ M7T M7T CQ M7T I find that there are still a lot of people around who do n; /archives//html/RTTY/2015-02/msg00104.html (9,239 bytes)
37. [RTTY] Help for FT-1000-MP Mark V (score: 1): Author: "David G3YYD" <g3yyd@btinternet.com>; Date: Tue, 31 Mar 2015 16:30:12 -0500; Or just use SSB with a resistive attenuator from the sound card to the microphone socket pin. Did that for years on my old FT1KMP. Used a changeover switch to switch between microphone and attenuate; /archives//html/RTTY/2015-03/msg00131.html (11,254 bytes)
38. Re: [RTTY] Help for FT-1000-MP Mark V (score: 1): Author: "David G3YYD" <g3yyd@btinternet.com>; Date: Wed, 01 Apr 2015 05:17:45 -0500; Joe I agree if you do all those things wrong. But intelligent people (and Radio Amateurs must be intelligent to pass the exams) will avoid those pitfalls. Using AFSK takes up a lot less of the band t; /archives//html/RTTY/2015-04/msg00001.html (12,183 bytes)
39. Re: [RTTY] Help for FT-1000-MP Mark V (score: 1): Author: "David G3YYD" <g3yyd@btinternet.com>; Date: Thu, 02 Apr 2015 04:18:55 -0500; The AFSK supposition described below does not reflect the reality and that is on a daily basis I suffer QRM when operating RTTY from wideband radio based FSK transmissions. But occasionally I may hea; /archives//html/RTTY/2015-04/msg00003.html (16,949 bytes)
40. [RTTY] GRITTY (score: 1): Author: "David G3YYD" <g3yyd@btinternet.com>; Date: Sun, 12 Apr 2015 11:03:15 -0500; Been evaluating GRITTY against 2Tone on 20m. I am listening to GM station and 2Tone is giving perfect copy while GRITTY is all over the place often with wrong callsign and at times giving numbers in; /archives//html/RTTY/2015-04/msg00063.html (7,870 bytes)

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