The purpose of this simple DIY project is to build an electronic circuit that received the GPS time signal, convert it to the radio-controlled clock format, and transmit that signal to the clock. Once built, there is no need for setup and maintenance, all you need is put this unit close to the window to receive GPS signal, and it will transmit the time signal to your radio-controlled clock.
http://sourceforge.net/projects/gpstoradiocontrolledclock/

 

or just buy a ready made atomic clock,,,

 

or just buy a ready made atomic clock,,,

I think you're missing the point. The purpose of the project is to recreate the WWVB time signal for the atomic clock where it could not normally be received, in a deep valley for example.

 

Nice idea, thanks for posting

 

Just updated to version 1.1. Now it supports China BPC code.