02-08-2017, 11:35 AM
Lou,
There is considerable discussion on various blog sites around the world about the problem, which ultimately lies with the fact that the first generation of GPS satellites only had a 10 bit week counter. The next generation of satellites have a 13 bit week counter which will (theoretically) allow for around 150 years!
As one blogger stated:" It's also worth noting that this issue doesn't affect the Thunderbolt's performance as a GPSDO, i.e. providing 1 PPS and 10 MHz signals locked to GPS. It only affects the year. The time and the rest of the date are still correct."
Cheers
Peter VK3QI
There is considerable discussion on various blog sites around the world about the problem, which ultimately lies with the fact that the first generation of GPS satellites only had a 10 bit week counter. The next generation of satellites have a 13 bit week counter which will (theoretically) allow for around 150 years!
As one blogger stated:" It's also worth noting that this issue doesn't affect the Thunderbolt's performance as a GPSDO, i.e. providing 1 PPS and 10 MHz signals locked to GPS. It only affects the year. The time and the rest of the date are still correct."
Cheers
Peter VK3QI