Thanks to all who replied but I decided to stop being pathetic and to do it myself!
Basically, after the upgrades to the Haicom 204III GPS puck, the NixiSat is talking to the puck using RS232, 4800 baud, 8 bits, no parity and is expecting to just receive a $GPRMC sentence once a second. So, just set the NWTS to send just send $GPRMC messages at 4800 baud using RS232 signalling (JP1,JP2 off, JP3 linked) - 5V power (about 80mA needed) from the NixiSat is on pins 1 & 2 of the 6-pin mini-DIN connector and RXD is on pin 5. Basically there's now a little black box behind the clock and that's it. Works a treat. I have to say the NTWS is a very nice solution for those needing GPS accuracy in an area where there's no satellite visibility for GPS. I'm running the 2.5 firmware which is quite old but it works for me just fine. Nick On Tuesday, 20 July 2021 at 22:35:18 UTC+1 MichaelB wrote: > Hey Thanks Greg. > > Hi Nick, ping me and I can tell you how I do it so that you can use the > clock either NWTS or GPS governed and easily swap them. The one I sent > Dalibor is done this way. > > You've already done the hard part by converting the clock away from the > older Axiom/Oncore 1PPS GPSs. And I assume converted that BNC connector to > either a mini DIN or 1/8" TRS? > > On Tuesday, July 20, 2021 at 1:54:44 PM UTC-7 Greg P wrote: > >> Nick, >> >> Takes some modification to the PCB and added components. Michael Barile >> (Bad Nixie) is the master at these conversions. Well worth it to have him >> do it for you, he has many satisfied customers. >> On Tuesday, July 20, 2021 at 9:05:29 AM UTC-4 Nick wrote: >> >>> Has anyone done this? >>> >>> I have an original Jeff Thomas NixiSat with the later firmware and the >>> HaiCom 204III puck that I added a few years ago - see >>> https://groups.google.com/g/neonixie-l/c/evzX0noEGXg/m/4ygtcNnhj3wJ >>> >>> The current site of the clock has no GPS visibility, so I want to >>> replace the puck with an NWTS - I just happened to have an unused one lying >>> around... >>> >>> Thanks >>> >> -- You received this message because you are subscribed to the Google Groups "neonixie-l" group. To unsubscribe from this group and stop receiving emails from it, send an email to neonixie-l+unsubscr...@googlegroups.com. To view this discussion on the web, visit https://groups.google.com/d/msgid/neonixie-l/97d8ccc3-60a8-4a1c-af49-fc3b6261188cn%40googlegroups.com.
