Re: [time-nuts] WWVB BPSK Atomic Clock Receiver Modules

2021-02-15 Thread fio
Hello, if anyone is interested, here is the source code for an NTP SHM driver for this hardware. Please note that I've only developed the code for the first generation hardware, although to my knowledge the spec sheet hasn't changed. https://github.com/fiorenzo1963/es100-wwvb-refclock

Re: [time-nuts] Mains Frequency

2021-02-15 Thread Detlef Schuecker via time-nuts
The Berlin grid was isolated from '48 until begin of the '80s. Berlins BEWAG was very proud of running a stable net on this island. They used a big bunch of energy storage devices: steam under pressure, batteries etc. to keep the frequency and phase stable. In begin/mid '80s they built a 380kV

Re: [time-nuts] Better than average Rb oscillator

2021-02-15 Thread Attila Kinali
Moin Angus, On Sat, 13 Feb 2021 22:04:54 + Angus via time-nuts wrote: >It's not too different from what I got with a temperature > controlled and air pressure compensated LPRO May I ask how you do the pressure compensation? And could you show a phase plot of the measurement? Our *DEV