Off topic: GPS controlled RTC with programmable output

[RD]

I need a GPS controlled time switch that switches a relay, every day on at 9:00 and off at 17:00.

Who has used one before, or knows where to look for it?

ps. sorry for using the forum

[AndrewBarton]

I've done this for a few years but never with a PIC!
The GPS units I have used give out a lot of data and to get an accurate time you need a large RAM to buffer the messages.

GPS has some problems, e.g. operating indoors where you can't see the satellites. If you are only working in the UK, have you considered MSF which works great with PIC's.

Hope this helps.