Re: [Elecraft] K3 RTTY MODE
For those interested in playing with microcontrollers, there is a very easy way to use an Atmel AVR to convert the AFSK from your favorite RTTY software to true FSK - and provide PTT as well. A few weeks ago, Kok Chen, W7AY, and I had a discussion about Atmel AVR microcontrollers. I told him I had always wanted to learn how to do it but couldn't come up with a good idea for a project to get me started. He directed me to this project developed by Doug Hall, K4DSP. http://k4dsp.homeip.net/~doug/regenerator/ This sparked my interest, and I decided to build one. Just finished it this weekend. It works like a charm with cocoaModem and the K3 - and I got my feet wet with microcontroller programming. David, W4SMT __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 RTTY MODE
Dick, Rather than using SSB mode for data, use the DATA modes, it is less troublesome and compression is set to zero automatically.. Use DATA A mode for soundcard digital modes, or AFSK A for soundcard RTTY. See page 31 of the K3 manual. With good carrier balance, an AFSK signal is equal to an FSK signal. The K3 AFSK A data mode sets the mark frequency in the VFO (rather than the carrier frequency), and allows use of the dual passband filter which is designed for RTTY use. The narrow roofing filters and the full range of DSP filters can be used for DATA modes if you configure the narrow filters for receive in that mode. Transmit must always use the 2.7 or 2.8 kHz filters, but the K3 figures out the arithmetic involved. If you wish to use the FSK input to the K3, you will have to provide a level translation and drive the FSK input on the ACC connector. MMTTY has methods of activating the FSK input. 73, Don W3FPR Richard W. Solomon wrote: Does anyone have any idea when they will upgrade to Keyboard operation for RTTY ? Now, I mean using real FSK, not this sound card AFSK stuff. In some radios, AFSK requires you to use the SSB mode, which does not allow filter selection. The Yaesu does. 73, Dick, W1KSZ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 RTTY MODE
I have found the AFSK stuff works quite well with the K3. I am using the SignaLink USB with N1MM logger and have made a couple of thousand QSOs on RTTY. I have no issue with the RX because you can used any filter in AFSK Data mode. Any filter. So, you do not use the SSB filter at all. I used my 500 Hz filter and knock it down to 300 Hz with the DSP and works great! So, this is not an issue. Lee - K0WA The New Kansas QSO Party - August 29, Sat 9am-9pm and August 30 Sun 9am-3pm CDT More Info at: http://www.ksqsoparty.org/ In our day and age it seems that Common Sense is in short supply. If you don't have any Common Sense - get some Common Sense and use it. If you can't find any Common Sense, ask for help from somebody who has some Common Sense. Is Common Sense divine? --- On Mon, 3/23/09, Richard W. Solomon w1...@earthlink.net wrote: From: Richard W. Solomon w1...@earthlink.net Subject: [Elecraft] K3 RTTY MODE To: elecraft@mailman.qth.net Date: Monday, March 23, 2009, 12:12 PM Does anyone have any idea when they will upgrade to Keyboard operation for RTTY ? Now, I mean using real FSK, not this sound card AFSK stuff. In some radios, AFSK requires you to use the SSB mode, which does not allow filter selection. The Yaesu does. 73, Dick, W1KSZ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 RTTY MODE
Richard W. Solomon wrote: Does anyone have any idea when they will upgrade to Keyboard operation for RTTY ? Now, I mean using real FSK, not this sound card AFSK stuff. If you're talking about plugging a keyboard directly into the K3, I don't think there's any plan to implement that. Real FSK is already available via the accessory port, but the keyboard-to-FSK has to be done externally (commonly by software like MMTTY). K1EL's K40 interface kit apparently allows use of a PS/2 keyboard to generate FSK without a computer, but his website still says it's out of stock. In some radios, AFSK requires you to use the SSB mode, which does not allow filter selection. The Yaesu does. Not sure if there's a question there? The K3 *does* allow filtering (including dual-passband) in AFSK A mode, as well as in FSK D mode. ~Iain / N6ML __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 RTTY MODE
Don, I am a digital mode neophyte. Is it possible - or, is it considered to be too much of a kludge - to receive a digital mode (be it PSK or RTTY) via PC soundcard and send CW to the K3 for translation into the digital mode? It seems that this would avoid some of the pitfalls associated with using a PC to generate radio quality audio. Do you know if any of the popular programs does this? Thanks, Brian K1LI On Mon, Mar 23, 2009 at 3:25 PM, Don Wilhelm w3...@embarqmail.com wrote: Dick, Rather than using SSB mode for data, use the DATA modes, it is less troublesome and compression is set to zero automatically.. Use DATA A mode for soundcard digital modes, or AFSK A for soundcard RTTY. See page 31 of the K3 manual. With good carrier balance, an AFSK signal is equal to an FSK signal. The K3 AFSK A data mode sets the mark frequency in the VFO (rather than the carrier frequency), and allows use of the dual passband filter which is designed for RTTY use. The narrow roofing filters and the full range of DSP filters can be used for DATA modes if you configure the narrow filters for receive in that mode. Transmit must always use the 2.7 or 2.8 kHz filters, but the K3 figures out the arithmetic involved. If you wish to use the FSK input to the K3, you will have to provide a level translation and drive the FSK input on the ACC connector. MMTTY has methods of activating the FSK input. 73, Don W3FPR Richard W. Solomon wrote: Does anyone have any idea when they will upgrade to Keyboard operation for RTTY ? Now, I mean using real FSK, not this sound card AFSK stuff. In some radios, AFSK requires you to use the SSB mode, which does not allow filter selection. The Yaesu does. 73, Dick, W1KSZ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 RTTY MODE
And as has been pointed out by one of the G's here, a PICAXE-18X can be VERY easily programmed to use a PS2 keyboard to send FSK, PSK and CW, using the KY command, when connected to the serial port. I've still got the K40 that I used with my IC756PRO once upon a time in a similar role. I can give further details if anyone is interested. 73, doug Date: Mon, 23 Mar 2009 12:42:47 -0700 From: Iain MacDonnell - N6ML a...@dseven.org Richard W. Solomon wrote: Does anyone have any idea when they will upgrade to Keyboard operation for RTTY ? Now, I mean using real FSK, not this sound card AFSK stuff. If you're talking about plugging a keyboard directly into the K3, I don't think there's any plan to implement that. Real FSK is already available via the accessory port, but the keyboard-to-FSK has to be done externally (commonly by software like MMTTY). K1EL's K40 interface kit apparently allows use of a PS/2 keyboard to generate FSK without a computer, but his website still says it's out of stock. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 RTTY MODE
Cannot do this as the software sending CW would be straight CW being sent to the CW input jack. PSK-D and FSK-D from CW is only capable from the paddles input. But it only takes a very simple interface using a transistor and resistor using the circuit described on the AA5AU website from a COM port to pins 1 and 5 on the ACCY connector. - 73, Greg - AB7R Whidbey Island WA NA-065 On Mon Mar 23 13:16 , Brian Machesney sent: Don, I am a digital mode neophyte. Is it possible - or, is it considered to be too much of a kludge - to receive a digital mode (be it PSK or RTTY) via PC soundcard and send CW to the K3 for translation into the digital mode? It seems that this would avoid some of the pitfalls associated with using a PC to generate radio quality audio. Do you know if any of the popular programs does this? Thanks, Brian K1LI On Mon, Mar 23, 2009 at 3:25 PM, Don Wilhelm w3...@embarqmail.com wrote: Dick, Rather than using SSB mode for data, use the DATA modes, it is less troublesome and compression is set to zero automatically.. Use DATA A mode for soundcard digital modes, or AFSK A for soundcard RTTY. See page 31 of the K3 manual. With good carrier balance, an AFSK signal is equal to an FSK signal. The K3 AFSK A data mode sets the mark frequency in the VFO (rather than the carrier frequency), and allows use of the dual passband filter which is designed for RTTY use. The narrow roofing filters and the full range of DSP filters can be used for DATA modes if you configure the narrow filters for receive in that mode. Transmit must always use the 2.7 or 2.8 kHz filters, but the K3 figures out the arithmetic involved. If you wish to use the FSK input to the K3, you will have to provide a level translation and drive the FSK input on the ACC connector. MMTTY has methods of activating the FSK input. 73, Don W3FPR Richard W. Solomon wrote: Does anyone have any idea when they will upgrade to Keyboard operation for RTTY ? Now, I mean using real FSK, not this sound card AFSK stuff. In some radios, AFSK requires you to use the SSB mode, which does not allow filter selection. The Yaesu does. 73, Dick, W1KSZ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: Elecraft@mailman.qth.net','','','')Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: Elecraft@mailman.qth.net','','','')Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
Re: [Elecraft] K3 RTTY MODE
Brian, Do not be put off by those who believe that radio quality audio cannot be generated by a soundcard. That may have been true with cheap soundcards a long time ago, but most soundcards available now will produce pure audio tones with very little distortion - so unless you have a totally antique computer soundcard, it will do AFSK RTTY or PSK just fine. Many are doing it, and I dare say that the problems are not with the soundcard itself, but with some hams overdriving the audio input of the transceiver. You have already heard that your proposed solution will not work - but there is a 'close relative' that will generate RTTY, PSK or CW from keyboard input and send it to the K3. Look at the K3Utility Terminal tab. Reception is on the screen and you would receive in PSK D or FSK D data modes. It is not exotic, but it works FB as a quick solution - tune the desired signal with a narrow filter. Other computer software packages will do all that the K3Utility Terminal will do and a lot more too, but they do use the soundcard for both transmit and receive. DigiPan is one of the easiest, Ham Radio Deluxe with DM780 is one of my favorites and is free - others prefer the full featured MixW. 73, Don W3FPR Brian Machesney wrote: Don, I am a digital mode neophyte. Is it possible - or, is it considered to be too much of a kludge - to receive a digital mode (be it PSK or RTTY) via PC soundcard and send CW to the K3 for translation into the digital mode? It seems that this would avoid some of the pitfalls associated with using a PC to generate radio quality audio. Do you know if any of the popular programs does this? Thanks, Brian K1LI On Mon, Mar 23, 2009 at 3:25 PM, Don Wilhelm w3...@embarqmail.com wrote: Dick, Rather than using SSB mode for data, use the DATA modes, it is less troublesome and compression is set to zero automatically.. Use DATA A mode for soundcard digital modes, or AFSK A for soundcard RTTY. See page 31 of the K3 manual. With good carrier balance, an AFSK signal is equal to an FSK signal. The K3 AFSK A data mode sets the mark frequency in the VFO (rather than the carrier frequency), and allows use of the dual passband filter which is designed for RTTY use. The narrow roofing filters and the full range of DSP filters can be used for DATA modes if you configure the narrow filters for receive in that mode. Transmit must always use the 2.7 or 2.8 kHz filters, but the K3 figures out the arithmetic involved. If you wish to use the FSK input to the K3, you will have to provide a level translation and drive the FSK input on the ACC connector. MMTTY has methods of activating the FSK input. 73, Don W3FPR Richard W. Solomon wrote: Does anyone have any idea when they will upgrade to Keyboard operation for RTTY ? Now, I mean using real FSK, not this sound card AFSK stuff. In some radios, AFSK requires you to use the SSB mode, which does not allow filter selection. The Yaesu does. 73, Dick, W1KSZ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html No virus found in this incoming message. Checked by AVG - www.avg.com Version: 8.0.238 / Virus Database: 270.11.24/2018 - Release Date: 03/23/09 06:52:00 __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
