Re: [Flexradio] 5 days, made a little progress
On Tue, May 5, 2009 at 5:15 AM, Lee A Crocker wrote: if you choose the right mode you will not have to choose "reverse" CW does the same thing as far as following U/L band convention. I always use CWL You can set up profiles that store your favorite parameters and then choose the "RTTY" profile or the "PSK" profile One of the problems that people face trying to do RTTY is that there are now two directions -- traditional and realistic. Traditionally with RTTY the mark frequency is above the space frequency. But when generated at audio (AFSK) the mark tone is *lower* than the space tone. So in order to invert the tones when transmitting, one uses LSB on the transmitter. This is the "traditional" approach that probably came from someone a million years ago trying to do RTTY on the lower bands, e.g. 160/80/40 and wanting to keep to the "tradition" of using LSB on those bands. But nowadays writers of software have opted to write code that just puts the mark tone above the space tone so that it is just like the transmitted signal, only translated in frequency. This requires something like USB to transmit. Radio manufacturers are a confused sort and aren't sure which way to go so you need to know several things: 1. Does the software generate the tones with mark above space or space above mark? 2. Does my rig have a RTTY mode and is it LSB (inverts the signal before transmitting) or USB (does not invert the signal)? 3. Does my rig in RTTY mode display mark frequency or carrier frequency? 4. Does my software calculate mark, space, or center frequency for me? I have discovered that most rigs that have a RTTY mode for AFSK use LSB. That means that for most other digital modes, you need to run RTTY reverse mode. PSK31 doesn't care but some modes, e.g. the MFSK modes like MFSK and Olivia, do. You need to make sure that the radio is NOT inverting the spectrum of the signal for transmission and reception. This is why some of the newer software doing RTTY generates the tones with the mark tone above the space tone. That way you don't need to change modes on the radio when going from MFSK to AFSK. But it sure is confusing the RTTY traditionalist. So, bottom line, make sure you know what the radio AND the software are doing so you can get them doing the right thing together. 73 de Brian, WB6RQN/J79BPL ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flex-radio.com/ Homepage: http://www.flex-radio.com/
Re: [Flexradio] 5 days, made a little progress
if you choose the right mode you will not have to choose "reverse" CW does the same thing as far as following U/L band convention. I always use CWL You can set up profiles that store your favorite parameters and then choose the "RTTY" profile or the "PSK" profile 73 W9OY ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flex-radio.com/ Homepage: http://www.flex-radio.com/
Re: [Flexradio] 5 days, made a little progress
I've been wrong before but I ALWAYS transmit and receive RTTY in LSB or DIGL 160 though 6 meters As for the vfo offset. LSB is 2125 from the dial. If your using a cluster spot as your frequency, go to Cat Control And set Enable Offset VFO A and B DIGL to 2125 set DIGU (PSK is in USB) to 0 (zero) Then using any of the digital programs, select DIGL for rtty and select DIGU for PSK. At least this works for me. Our flavor of RTTY is AFSK, as opposed to many rigs which operate true FSK. Properly adjusted audio, and the receive station can not tell the difference other than the AFSK version is slightly wider signal. - Original Message - From: To: Sent: Monday, May 04, 2009 7:25 PM Subject: [Flexradio] 5 days, made a little progress Hi All, I found and fixed one thing on the list. The RTTY was gibberish until I switched to RTTY reverse, then the decodes are fine. I still have not figured out why I would have to set MMTTY to reverse when the signals are correct. I hooked up the 756 Pro II to it's normal computer and worked a couple of stations on 20m RTTY. It's working fine, good decodes and on frequency. I switched the F3000 and Pro II to dummy loads and was transmitting RY at minimum power on one radio at a time and checking for decodes on the opposite computer. When I tried reverse RTTY on the F3000 everything started decoding. The Pro II is on 14.081.00MHz. The Flex is receiving it at 14.081.00 on the Panadapter. The F3000 is transmitting on 14.081.00Mhz. Still have the problem of the F3000 reading 14.078.690MHz on the VFO. I checked the sampling rates and buffers and all are set the same. #1 Why is it running RTTY reverse? #2 Why is the VFO off by 2310Hz? Marty **2009 3 Free CREDIT SCORES: See Your 3 Credit Scores from All 3 Bureaus FREE! (http://pr.atwola.com/promoclk/100126575x1221797372x1201397989/aol?redir=https:%2F%2Fwww.freescore.com%2FOffers%2FStart%2FFreeCreditRepor tAndScore.aspx%3FID%3D91831F371F138345B53A153F49D4D872%26siteid%3De927580bf7 ) ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flex-radio.com/ Homepage: http://www.flex-radio.com/ ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flex-radio.com/ Homepage: http://www.flex-radio.com/
Re: [Flexradio] 5 days, made a little progress
Thank you Carl. I guess it's an "Old School" throwback. All of my other RTTY capable radios do the switching automatically. Setting one of them to RTTY reverse, EVER, will get you a bunch of nasty emails. 73, Marty In a message dated 5/4/2009 7:33:10 P.M. Central Daylight Time, wc0...@embarqmail.com writes: #1. RTTY is "normal" on 80 and 40, "reverse" on 20 and higher. Similar to LSB and USB. 73, Carl WC0V - Original Message - From: To: Sent: Monday, May 04, 2009 7:25 PM Subject: [Flexradio] 5 days, made a little progress > Hi All, > I found and fixed one thing on the list. The RTTY was gibberish until I > switched to RTTY reverse, then the decodes are fine. I still have not > figured > out why I would have to set MMTTY to reverse when the signals are correct. > > I hooked up the 756 Pro II to it's normal computer and worked a couple of > stations on 20m RTTY. It's working fine, good decodes and on frequency. I > switched the F3000 and Pro II to dummy loads and was transmitting RY at > minimum power on one radio at a time and checking for decodes on the > opposite > computer. When I tried reverse RTTY on the F3000 everything started > decoding. > > The Pro II is on 14.081.00MHz. The Flex is receiving it at 14.081.00 on > the > Panadapter. The F3000 is transmitting on 14.081.00Mhz. Still have the > problem of the F3000 reading 14.078.690MHz on the VFO. I checked the > sampling > rates and buffers and all are set the same. > > #1 Why is it running RTTY reverse? > #2 Why is the VFO off by 2310Hz? > > Marty > **2009 3 Free CREDIT SCORES: See Your 3 Credit Scores from All > 3 Bureaus FREE! > (http://pr.atwola.com/promoclk/100126575x1221797372x1201397989/aol?redir=https:%2F%2Fwww.freescore.com%2FOffers%2FStart%2FFreeCreditRepor > tAndScore.aspx%3FID%3D91831F371F138345B53A153F49D4D872%26siteid%3De927580bf7 > ) > ___ > FlexRadio Systems Mailing List > FlexRadio@flex-radio.biz > http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz > Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ > Knowledge Base: http://kc.flex-radio.com/ Homepage: > http://www.flex-radio.com/ ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flex-radio.com/ Homepage: http://www.flex-radio.com/ **2009 3 Free CREDIT SCORES: See Your 3 Credit Scores from All 3 Bureaus FREE! (http://pr.atwola.com/promoclk/100126575x1221797372x1201397989/aol?redir=https:%2F%2Fwww.freescore.com%2FOffers%2FStart%2FFreeCreditRepor tAndScore.aspx%3FID%3D91831F371F138345B53A153F49D4D872%26siteid%3De927580bf7 ) ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flex-radio.com/ Homepage: http://www.flex-radio.com/
Re: [Flexradio] 5 days, made a little progress
#1. RTTY is "normal" on 80 and 40, "reverse" on 20 and higher. Similar to LSB and USB. 73, Carl WC0V - Original Message - From: To: Sent: Monday, May 04, 2009 7:25 PM Subject: [Flexradio] 5 days, made a little progress Hi All, I found and fixed one thing on the list. The RTTY was gibberish until I switched to RTTY reverse, then the decodes are fine. I still have not figured out why I would have to set MMTTY to reverse when the signals are correct. I hooked up the 756 Pro II to it's normal computer and worked a couple of stations on 20m RTTY. It's working fine, good decodes and on frequency. I switched the F3000 and Pro II to dummy loads and was transmitting RY at minimum power on one radio at a time and checking for decodes on the opposite computer. When I tried reverse RTTY on the F3000 everything started decoding. The Pro II is on 14.081.00MHz. The Flex is receiving it at 14.081.00 on the Panadapter. The F3000 is transmitting on 14.081.00Mhz. Still have the problem of the F3000 reading 14.078.690MHz on the VFO. I checked the sampling rates and buffers and all are set the same. #1 Why is it running RTTY reverse? #2 Why is the VFO off by 2310Hz? Marty **2009 3 Free CREDIT SCORES: See Your 3 Credit Scores from All 3 Bureaus FREE! (http://pr.atwola.com/promoclk/100126575x1221797372x1201397989/aol?redir=https:%2F%2Fwww.freescore.com%2FOffers%2FStart%2FFreeCreditRepor tAndScore.aspx%3FID%3D91831F371F138345B53A153F49D4D872%26siteid%3De927580bf7 ) ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flex-radio.com/ Homepage: http://www.flex-radio.com/ ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flex-radio.com/ Homepage: http://www.flex-radio.com/
[Flexradio] 5 days, made a little progress
Hi All, I found and fixed one thing on the list. The RTTY was gibberish until I switched to RTTY reverse, then the decodes are fine. I still have not figured out why I would have to set MMTTY to reverse when the signals are correct. I hooked up the 756 Pro II to it's normal computer and worked a couple of stations on 20m RTTY. It's working fine, good decodes and on frequency. I switched the F3000 and Pro II to dummy loads and was transmitting RY at minimum power on one radio at a time and checking for decodes on the opposite computer. When I tried reverse RTTY on the F3000 everything started decoding. The Pro II is on 14.081.00MHz. The Flex is receiving it at 14.081.00 on the Panadapter. The F3000 is transmitting on 14.081.00Mhz. Still have the problem of the F3000 reading 14.078.690MHz on the VFO. I checked the sampling rates and buffers and all are set the same. #1 Why is it running RTTY reverse? #2 Why is the VFO off by 2310Hz? Marty **2009 3 Free CREDIT SCORES: See Your 3 Credit Scores from All 3 Bureaus FREE! (http://pr.atwola.com/promoclk/100126575x1221797372x1201397989/aol?redir=https:%2F%2Fwww.freescore.com%2FOffers%2FStart%2FFreeCreditRepor tAndScore.aspx%3FID%3D91831F371F138345B53A153F49D4D872%26siteid%3De927580bf7 ) ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flex-radio.com/ Homepage: http://www.flex-radio.com/
