Re: [time-nuts] NIST's WWVB phase modulation format paper from PTTI 2011

2012-03-15 Thread Jim Hickstein
If I'm right, that's another broken egg in the frequency reference basket. I read the paper, but I could use an expert ruling from the list: What does this actually mean for my Spectracom 8170 and Spectracom 8164, i.e. the twins? The latter I frankly don't use much (I'm early in the

[time-nuts] NIST's WWVB phase modulation format paper from PTTI 2011

2012-03-14 Thread John Seamons
Here is a copy of the paper NIST co-authored describing the new WWVB phase modulation format: http://jks.com/wwvb.pdf (2MB PDF) John Lowe from NIST said I could redistribute it to the list. It will be available on the NIST website sometime in April once the official PTTI 2011

Re: [time-nuts] NIST's WWVB phase modulation format paper from PTTI 2011

2012-03-14 Thread J. Forster
Has anybody looked at the impact of the periodic phase reversals of BPSK on the loop of phase-tracking receivers, like the Fluke or the HP 117A? NIST does claim backward compatability for time. But what about time interval? I know you can extract the carries from BPSK with a Costas Loop (which