Re: [time-nuts] Mechanical clock sound pickup circuit

On 12/14/15 9:12 PM, ed breya wrote: This may be totally ridiculous, but maybe there's another way to get a balance wheel signal. The X-band Doppler type microwave motion detectors can pick up various object signals in free air from quite a distance, so maybe up close there would be enough

Re: [time-nuts] Phase noise from Allan Deviation ?

Hi Iain, I'll publish a flowgraph soon. I built a Out-Of-Tree module to decimate the output down to one sample per reading to keep the output file small for even long runs. On the order of about 48000:! decimation. Strange thing is - it works when the QT Time Sink is enabled, but gives very

Re: [time-nuts] Mechanical clock sound pickup circuit

This may be totally ridiculous, but maybe there's another way to get a balance wheel signal. The X-band Doppler type microwave motion detectors can pick up various object signals in free air from quite a distance, so maybe up close there would be enough resolution and penetration of the metal

Re: [time-nuts] Mechanical clock sound pickup circuit

Let's be serious here. Radar is the wrong part of the E-M spectrum. Use light. It is cheap, easy to detect, and there are plenty of reflections to go around. Or better still, listen to the tic. Then you don't even have to open the case Which brings this full circle. -Chuck Harris Jim