Porting I/Q routine

[w4mmp-ron]

Hello Vojtech,

It has been many years but I was hoping you might be able to lend a hand. We (Multus SDR, LLC - https://www.multus-sdr.com/) are still plugging away with designing and producing transceivers based on the original Basic. We now have a rig called the Proficio and soon will have another adaption called the Proficio MK II. When it comes to CW, we have taken a hardware approach to QSK operations. The hardware is working well but I have hit somewhat of a stumbling block. So, I have taken a look at your QSK code for the Basic to generate an I/Q audio signal when in TX mode. Previous to this I was attempting to shift the Si5351 oscillator to provide the CW pitch offset required so that CW operations works correctly. Shifting the Si5351 does not work since it takes a relatively long time to shift the main oscillator frequency.

Your QSK code does work but I have one problem is that the shift is far to large. I was hoping you would take a look at my code and let me know where I have gone wrong.

73s,
Ron Patton W4MMP
cw.zip
audio.zip

[bubnikv]

Hello Ron. I will try to find time to review your prototype over the weekend. Vojtech

…

On Mon, Oct 30, 2023 at 10:22 PM w4mmp-ron ***@***.***> wrote: Hello Vojtech, It has been many years but I was hoping you might be able to lend a hand. We (Multus SDR, LLC - https://www.multus-sdr.com/) are still plugging away with designing and producing transceivers based on the original Basic. We now have a rig called the Proficio and soon will have another adaption called the Proficio MK II. When it comes to CW, we have taken a hardware approach to QSK operations. The hardware is working well but I have hit somewhat of a stumbling block. So, I have taken a look at your QSK code for the Basic to generate an I/Q audio signal when in TX mode. Previous to this I was attempting to shift the Si5351 oscillator to provide the CW pitch offset required so that CW operations works correctly. Shifting the Si5351 does not work since it takes a relatively long time to shift the main oscillator frequency. Your QSK code does work but I have one problem is that the shift is far to large. I was hoping you would take a look at my code and let me know where I have gone wrong. 73s, Ron Patton W4MMP cw.zip <https://github.com/bubnikv/omniasdrbasicfirmware/files/13209941/cw.zip> audio.zip <https://github.com/bubnikv/omniasdrbasicfirmware/files/13209947/audio.zip> — Reply to this email directly, view it on GitHub <#3>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/ABMPSIZUYNIPIZLOWXAJGVDYCALA5AVCNFSM6AAAAAA6WVZZMOVHI2DSMVQWIX3LMV43ASLTON2WKOZRHE3DSMRUG42DGNY> . You are receiving this because you are subscribed to this thread.Message ID: ***@***.***>