[time-nuts] Frequency deviations in Europe affect clocks

[Gerhard Hoffmann]

Am 07.03.2018 um 22:09 schrieb Poul-Henning Kamp:
>
>> This explains why my oven clock and the time/temperature display
>> on the building outside my apartment in Switzerland are six minutes
>> slow since January. It was a great mystery to me.
> Can you get a picture of this ?  It would be wonderful to have for future discussions...
>
Does that help?

< 
https://www.flickr.com/photos/137684711@N07/38870750440/in/album-72157662535945536/ 
         >

Input to the counter is just an AC wall wart with a voltage divider to 4Vpp.
Now, the frequency has risen to above 50.02 Hz constantly. It is in the 
middle of the night after all.
They have to catch up.

BTW I have decided to build an analog phase noise tester of my own. This 
weekend
I did most of the mechanical things, but it is still in a kit state.

The pictures are to the left of the 49 Hz-Pic.
The 1-to-6 coax relays are part of the switchable lambda/4 delay line, 
so I can enforce
quadrature everywhere above 5 MHz, including unknown amplifiers etc.
Still looking for 2 more 1:6 relays.

The mixers and dividers are in stereo, so I can do cross correlation in 
the 89441A.
One of the mixer/preamp units is open, the ref oscillators will be 
MTI-260s on
my oscillator carrier board.

Have a good night,
Gerhard