I'm impressed! This amazing G-SHOCK synched with The german tower DCF77 almost 2000km away from where i am.The signal was L3 the strongest. This operation was performed during night, between 00:00 and
Amplificatore Wave Receiver per orologi radio controllati DCF77 Casio Citizen | eBay
Modulo ferrite Wave Receiver Dual - Band 77,5 - 60 KHZ per DCF77 MSF JJY WWVB | eBay