|
|
|
|
|
|
by tvb
1612 days ago
|
|
|
DCF77 has a leap second warning bit. PTB says it is up to the user to know if it positive or negative. If a clock blindly assumes it is a positive leap that’s an error in the design of the clock. This is not ideal. Likewise WWVB has a leap second warning bit. But it includes a UT1 sign bit so the user can know if the leap will be positive or negative. This design is fine and any WWVB clock or software can properly handle positive or negative leap seconds. This is true for both the amplitude and the phase modulation formats. |
|
|