[20] Stanford Research Systems FS752 GNSSDO teardown, review, and experiments

I finally got a nice GPSDO with distribution amplifier for my lab. Before putting in service I thought I'd give you a peek inside.

Overall I had a lot of fun making this one and went down a bit of a rabbit hole with equipment acquisition (this ended up being an excuse to buy a rubidium clock...)

00:00 What is a GNSSDO and why would you use one?
02:15 Theory of operation
03:50 Front panel overview
05:50 Rear panel overview
07:05 Mains power supply
07:35 10 MHz output board
08:55 Front panel ports
09:50 On-board power supply
10:25 Main CPU
10:55 Serial port, relay outputs, and GNSS receiver
11:30 Voltage reference and OCXO
12:13 System architecture conclusion
12:40 Experiment setup comparing short term stability of FS752 against Leo Bodnar GPSDO and Symmetricom SA.22C rubidium oscillator
14:00 Stability analysis in ngscopeclient
19:00 Concluding remarks