| ▲ | kurthr 2 hours ago | |||||||||||||
Just toss a doppler laser interferometer on a window, mirror, etc. At least with fiber-optics you need physical access. Single mode (I think that's most of FTTH) is pretty insensitive to vibration and hard to localize so you'd really have to install something. | ||||||||||||||
| ▲ | andai an hour ago | parent [-] | |||||||||||||
Ah, but of course. How could I forget about my trusty pocket doppler laser interferometer! | ||||||||||||||
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