I once looked into adding IRIG generation to Lady Heather. I never came up with a reliable / robust way to do it. It could possibly be done with some of the Windows multi-media support, but that would leave the Linux/macOS/FreeBSD people in the dark. I just added TS2100 support to Lady Heather... but it only reads the time code output string and drives the clock displays. I don't have a TS2100 to properly test it, but it works when fed with a simulation file. -------------------- > RANDOM QUESTION -- does anybody know of software to *generate* IRIG time code? Something in C that's adaptable to a modern micro would be good. In something like a Raspberry Pi 3, IRIG generation would make a nice addition to Lady Heather...

I have built an irig b encoder. Irig uses a 1 KHZ amplitude modulated signal. I can't remember now if it was pulse width modulation also. But it used a small processor and todays arduino is many time more effective at the job. That said I used a modulator using a small xtal controlled divider to produce the carrier. It was a Epson chip and even the xtal was built in and a analog CMOS gate as the modulator. Its actually fairly simple to create. Then it was a case of reading out the clock in the correct format. Regards Paul. WB8TSL On Wed, Mar 7, 2018 at 3:05 PM, Mark Sims <holrum@hotmail.com> wrote: > I once looked into adding IRIG generation to Lady Heather. I never came > up with a reliable / robust way to do it. It could possibly be done with > some of the Windows multi-media support, but that would leave the > Linux/macOS/FreeBSD people in the dark. > > I just added TS2100 support to Lady Heather... but it only reads the time > code output string and drives the clock displays. I don't have a TS2100 > to properly test it, but it works when fed with a simulation file. > > -------------------- > > > RANDOM QUESTION -- does anybody know of software to *generate* IRIG time > code? Something in C that's adaptable to a modern micro would be good. In > something like a Raspberry Pi 3, IRIG generation would make a nice addition > to Lady Heather... > _______________________________________________ > time-nuts mailing list -- time-nuts@febo.com > To unsubscribe, go to https://www.febo.com/cgi-bin/ > mailman/listinfo/time-nuts > and follow the instructions there. >

Hi, On 03/07/2018 09:05 PM, Mark Sims wrote: > I once looked into adding IRIG generation to Lady Heather. I never came up with a reliable / robust way to do it. It could possibly be done with some of the Windows multi-media support, but that would leave the Linux/macOS/FreeBSD people in the dark. > > I just added TS2100 support to Lady Heather... but it only reads the time code output string and drives the clock displays. I don't have a TS2100 to properly test it, but it works when fed with a simulation file. Well, I have an unfinished IRIG-B project here: https://github.com/sa0mad/irigb I have run that decoder in realtime from a Brandywine GPS4 IRIG-B output on my Linux laptop. Cheers, Magnus