Re: [digitalradio] Contestia RTTYM
Thanks to Tony and Vojtech I now have Contestia and RTTYM working. I'll send some code etc. to Dave W1HKJ so that he can add these two modes to fldigi. All-in-all a frantic few hours understanding how Olivia works, need a beer or seven after all that ! Simon Brown, HB9DRV www.ham-radio-deluxe.com - Original Message - From: Simon (HB9DRV) simon.br...@kns.ch Please send to si...@hb9drv.ch, I hope to have Contestia and RTTYM working next week, currently got a lot to get organised here.
Re: [digitalradio] Contestia RTTYM
Simon, That's great news - THANKS! Tony -K2MO - Original Message - From: Simon (HB9DRV) simon.br...@kns.ch To: digitalradio@yahoogroups.com Sent: Saturday, May 23, 2009 11:29 AM Subject: Re: [digitalradio] Contestia RTTYM Thanks to Tony and Vojtech I now have Contestia and RTTYM working. I'll send some code etc. to Dave W1HKJ so that he can add these two modes to fldigi. All-in-all a frantic few hours understanding how Olivia works, need a beer or seven after all that ! Simon Brown, HB9DRV www.ham-radio-deluxe.com - Original Message - From: Simon (HB9DRV) simon.br...@kns.ch Please send to si...@hb9drv.ch, I hope to have Contestia and RTTYM working next week, currently got a lot to get organised here.
Re: [digitalradio] Contestia / RTTYM
Hi All, Tony sent me a fine set of wave files so I'll be able to do what I need to do. Simon Brown, HB9DRV www.ham-radio-deluxe.com - Original Message - From: Tony d...@optonline.net As Patrick mentioned, the RSID is very sensitive. Multipsk was able to detect the ID down to -25db with the HF path simulator PathSim.
Re: [digitalradio] Contestia RTTYM
Hi Simon and all I made some pathsimulations with RTTYM and Contestia from viewpoint QRP and contesting. My results show that both are dead modes. But RTTYM with UOS like Sholto believe it would be much better. The data about 1.5dB snr or 3dB in relation with original Olivia is myth. Better alternative is FEC-free DominoEX 5/11 for contesting and MFSK16 for everyday use. The original Olivia is bulletproof but a little slow and wide. The test results in pdf-file http://www.edutee.net/QuickPlace/digiqrp/Main.nsf/h_50B8373EB47C85CEC22573B20035031F/44CE2826803EF034C225759B0080DEC7/?OpenDocument or if the link dont open: www.edutee.net/digiqrp Jaak es1hj/qrp Simon (HB9DRV) wrote: Is there anyone out there who uses both DM780 MixW who could record wave files using DM780 where the wave files contain Contestia and RTTYM trasmissions? You'll need to couple the programs using something like VAC. Ideally one file per mode with a reasonable long text. I need the waves files to be sure I implement Contestia and RTTYM correctly. I don't have mixW and don't use it less i get accussed of plagiarism and lawyers start hunting me (yes, it has happened before). Simon HB9DRV www.ham-radio-deluxe.com wlmailhtml:%7B32707AD4-6E7A-4DD5-B438-269E50A418FB%7Dmid://0258/%21x-usc:http://www.ham-radio-deluxe.com/ www.sdr-radio.com wlmailhtml:%7B32707AD4-6E7A-4DD5-B438-269E50A418FB%7Dmid://0258/%21x-usc:http://www.sdr-radio.com/ -- Kirjutas ja tervitab Jaak Hohensee
Re: [digitalradio] Contestia RTTYM
dear simon multipsk is workable in the free version just send the test text with multipsk and record your sending audio with wavepad or with another waverecorder (any should work) now open dm780 play wavefile with a waveplayer (any should work) setup your windows mixer under record options (input of dm780) to use the wave out signal as record input now dm780 should print your text dg9bfc sigi - Original Message - From: Simon (HB9DRV) To: digitalradio@yahoogroups.com Sent: Thursday, May 21, 2009 10:59 AM Subject: [digitalradio] Contestia RTTYM Is there anyone out there who uses both DM780 MixW who could record wave files using DM780 where the wave files contain Contestia and RTTYM trasmissions? You'll need to couple the programs using something like VAC. Ideally one file per mode with a reasonable long text. I need the waves files to be sure I implement Contestia and RTTYM correctly. I don't have mixW and don't use it less i get accussed of plagiarism and lawyers start hunting me (yes, it has happened before). Simon HB9DRV www.ham-radio-deluxe.com www.sdr-radio.com
Re: [digitalradio] Contestia / RTTYM
This is where Patrick's RSID idea will help, I'm adding it to DM780 and maybe the MixW developer(s) could add it? Patrick - how does the RSID sensitivity / robustness compare to Olivia? Would there be any point in sending the RSID twice? Simon Brown, HB9DRV www.ham-radio-deluxe.com - Original Message - From: Rick Westerfield I like the faster print rate of Contestia but there are few users out there.
Re: [digitalradio] Contestia / RTTYM
Hello Simon, maybe the MixW developer(s) could add it? It would be good to include RS ID in Mixw, at least for the Mixw exotic modes (FSK31 for example). It could be indicated for the softs not decoding the exotic mode with which soft it could be decoded. For example, on reception on a (future) FSK31 RS ID (no RS ID for this mode at present), it could be indicated by Multipsk, DM780, FLdigi or Pocketdigi that FSK31 could be decoded by Mixw. This could also be interesting for softs (not being multimode) working on one particular or several exotic modes. Knowing the mode and the soft to use, it will permit more experimentation. My RS ID measures are the following: * the first RS ID decoding happens at S/N=-18 dB, * at S/N=-13 dB the RS ID decoding is almost systematic. Note: Tony measures a lower minimum S/N. According to the Olivia mode, the minimum S/N for these modes is from - 7 dB to -14 dB. Patrick - how does the RSID sensitivity / robustness compare to Olivia? So in general, RS ID is more sensitive than Olivia, Contestia or RTTYM. Would there be any point in sending the RSID twice? There are no limitations (in Multipsk, the RS ID macro can be sent several time). 73 Patrick - Original Message - From: Simon (HB9DRV) To: digitalradio@yahoogroups.com Sent: Thursday, May 21, 2009 9:30 PM Subject: Re: [digitalradio] Contestia / RTTYM This is where Patrick's RSID idea will help, I'm adding it to DM780 and maybe the MixW developer(s) could add it? Patrick - how does the RSID sensitivity / robustness compare to Olivia? Would there be any point in sending the RSID twice? Simon Brown, HB9DRV www.ham-radio-deluxe.com - Original Message - From: Rick Westerfield I like the faster print rate of Contestia but there are few users out there.
Re: [digitalradio] Contestia / RTTYM
Thanks Patrick, Good valuable information. Simon Brown, HB9DRV www.ham-radio-deluxe.com - Original Message - From: Patrick Lindecker My RS ID measures are the following: * the first RS ID decoding happens at S/N=-18 dB, * at S/N=-13 dB the RS ID decoding is almost systematic.
Re: [digitalradio] Contestia RTTYM
Simon, I can do this for you if you still need it done. Tony -K2MO - Original Message - From: Simon (HB9DRV) simon.br...@kns.ch To: digitalradio@yahoogroups.com Sent: Thursday, May 21, 2009 4:59 AM Subject: [digitalradio] Contestia RTTYM Is there anyone out there who uses both DM780 MixW who could record wave files using DM780 where the wave files contain Contestia and RTTYM trasmissions? You'll need to couple the programs using something like VAC. Ideally one file per mode with a reasonable long text. I need the waves files to be sure I implement Contestia and RTTYM correctly. I don't have mixW and don't use it less i get accussed of plagiarism and lawyers start hunting me (yes, it has happened before). Simon HB9DRV www.ham-radio-deluxe.com www.sdr-radio.com
Re: [digitalradio] Contestia RTTYM
The data about 1.5dB snr or 3dB in relation with original Olivia is myth. My results show that both are dead modes I respectfully disagree Jaack. If you compare Contestia on a word-per-minute basis, you'll find it compares favorably with Olivia and in some cases will outperform it based on that criteria. For example: Contesita 16/500 and Olivia 4/500 have the same word-per-minute rate, but Contestia will have a 5db advantage over Olivia in terms of throughput on a moderately disturbed HF channel. Of course Olivia is left at a disadvantage because the number of tones were reduced to keep up with Contestia's wmp rate and I'm sure there's something to be said there. I'm sure the experts on this subject will shed more light on this, but I think it's only fair to include the wpm throughput when comparing modes of a similar type and bandwidth. Tony -K2MO - Original Message - From: Jaak Hohensee jaak.hohen...@eesti.ee To: digitalradio@yahoogroups.com Sent: Thursday, May 21, 2009 7:04 AM Subject: Re: [digitalradio] Contestia RTTYM Hi Simon and all I made some pathsimulations with RTTYM and Contestia from viewpoint QRP and contesting. My results show that both are dead modes. But RTTYM with UOS like Sholto believe it would be much better. The data about 1.5dB snr or 3dB in relation with original Olivia is myth. Better alternative is FEC-free DominoEX 5/11 for contesting and MFSK16 for everyday use. The original Olivia is bulletproof but a little slow and wide. The test results in pdf-file http://www.edutee.net/QuickPlace/digiqrp/Main.nsf/h_50B8373EB47C85CEC22573B20035031F/44CE2826803EF034C225759B0080DEC7/?OpenDocument or if the link dont open: www.edutee.net/digiqrp Jaak es1hj/qrp Simon (HB9DRV) wrote: Is there anyone out there who uses both DM780 MixW who could record wave files using DM780 where the wave files contain Contestia and RTTYM trasmissions? You'll need to couple the programs using something like VAC. Ideally one file per mode with a reasonable long text. I need the waves files to be sure I implement Contestia and RTTYM correctly. I don't have mixW and don't use it less i get accussed of plagiarism and lawyers start hunting me (yes, it has happened before). Simon HB9DRV www.ham-radio-deluxe.com wlmailhtml:%7B32707AD4-6E7A-4DD5-B438-269E50A418FB%7Dmid://0258/%21x-usc:http://www.ham-radio-deluxe.com/ www.sdr-radio.com wlmailhtml:%7B32707AD4-6E7A-4DD5-B438-269E50A418FB%7Dmid://0258/%21x-usc:http://www.sdr-radio.com/ -- Kirjutas ja tervitab Jaak Hohensee
Re: [digitalradio] Contestia / RTTYM
Simon, As Patrick mentioned, the RSID is very sensitive. Multipsk was able to detect the ID down to -25db with the HF path simulator PathSim. It seems robust and decodes fine with moderate HF channel disturbances -- tends to fail under extreme conditions such as disturbed high / low latitude paths. At least that's what the simulator indicated. Tony -K2MO - Original Message - From: Simon (HB9DRV) simon.br...@kns.ch To: digitalradio@yahoogroups.com Sent: Thursday, May 21, 2009 3:30 PM Subject: Re: [digitalradio] Contestia / RTTYM This is where Patrick's RSID idea will help, I'm adding it to DM780 and maybe the MixW developer(s) could add it? Patrick - how does the RSID sensitivity / robustness compare to Olivia? Would there be any point in sending the RSID twice? Simon Brown, HB9DRV www.ham-radio-deluxe.com - Original Message - From: Rick Westerfield I like the faster print rate of Contestia but there are few users out there.
Re: [digitalradio] Contestia RTTYM
Yes please - this would save me a lot of time, maybe a couple of Contestia and RTTYM? Please send to si...@hb9drv.ch, I hope to have Contestia and RTTYM working next week, currently got a lot to get organised here. Simon Brown, HB9DRV www.ham-radio-deluxe.com - Original Message - From: Tony d...@optonline.net I can do this for you if you still need it done.
Re: [digitalradio] Contestia / RTTYM
Hello to all, Contestia is a very good compromise. Twice faster than Olivia and almost as sensitive as Olivia (only a loss of 1.5 dB in the S/N). However there are only capital letters, which is not a big problem. RTTYM has the same problem that RTTY. On an error, you can switch to figures whereas you might be in letters, or reversely. Not a very good mode for this reason. However, it is almost 4 times quicker than Olivia. 73 Patrick - Original Message - From: Rick Westerfield To: digitalradio@yahoogroups.com Sent: Wednesday, May 20, 2009 7:10 PM Subject: Re: [digitalradio] Contestia / RTTYM I like the faster print rate of Contestia but there are few users out there. Rick - KH2DF Sent from my iPhone On May 20, 2009, at 7:28 AM, Simon \(HB9DRV\) simon.br...@kns.ch wrote: I'm adding these Olivia derrivates to DM780, I'm interested in knowing whether they are used much? Simon HB9DRV www.ham-radio-deluxe.com www.sdr-radio.com
Re: [digitalradio] Contestia / RTTYM
I like the faster print rate of Contestia but there are few users out there. Rick - KH2DF Sent from my iPhone On May 20, 2009, at 7:28 AM, Simon \(HB9DRV\) simon.br...@kns.ch wrote: I'm adding these Olivia derrivates to DM780, I'm interested in knowing whether they are used much? Simon HB9DRV www.ham-radio-deluxe.com www.sdr-radio.com
Re: [digitalradio] Contestia / RTTYM
I had a nice Contestia QSO yesterday. Heard a guy calling in it (without RS ID) and it took me a minute to realize it was Contestia rather than Olivia but it worked very well. Regarding RTTYM, I believe if the UOS unshift-on-space option was added (like most RTTY programs) it would be much better. 73 Sholto K7TMG Patrick Lindecker wrote: Hello to all, Contestia is a very good compromise. Twice faster than Olivia and almost as sensitive as Olivia (only a loss of 1.5 dB in the S/N). However there are only capital letters, which is not a big problem. RTTYM has the same problem that RTTY. On an error, you can switch to figures whereas you might be in letters, or reversely. Not a very good mode for this reason. However, it is almost 4 times quicker than Olivia. 73 Patrick - Original Message - *From:* Rick Westerfield mailto:r_lwesterfi...@bellsouth.net *To:* digitalradio@ yahoogroups. com mailto:digitalradio@yahoogroups.com *Sent:* Wednesday, May 20, 2009 7:10 PM *Subject:* Re: [digitalradio] Contestia / RTTYM I like the faster print rate of Contestia but there are few users out there. Rick - KH2DF Sent from my iPhone On May 20, 2009, at 7:28 AM, Simon \(HB9DRV\) simon.brown@ kns.ch mailto:simon.br...@kns.ch wrote: I'm adding these Olivia derrivates to DM780, I'm interested in knowing whether they are used much? Simon HB9DRV http://www.ham-radio-deluxe.comwww.ham-radio- http://www.ham-radio- deluxe.com http://www.sdr-radio.comwww.sdr-radio http://www.sdr-radio. com
