GPSDO for Position Location, Time and Frequency Standard and updates since May
Found this interesting RTK GPS system module that is accurate down to 1cm, yeah, 1cm is what is claimed. This video is the source: https://www.youtube.com/watch?v=_a1ixhYJe60 Figured I'd share. https://www.sparkfun.com/products/15136 Reference comparison oscillators: https://en.wikipedia.org/wiki/Crystal_oven#Comparison_with_other_frequency_standards Updates Since May : Hackaday: rtl-sdr-seven-years-later article with comments detailing applications Hackaday : tuning-into-atomic-radio-quantum-technique-unlocks-laser-based-radio-reception/ Neat system... though I'd like to work on a cost effective DIY wideband laser interferometer to more easily perform a mHz to ̶E̶̶H̶̶z̶̶ PHz spectrum analysis. Still... this system seems interesting. The below post corrupted me when I posted a comment, along with watching a video by The thought emporium to make a similar interferometer about the same time and a video by Physics Girl a few weeks later about how the LIGO syste