Nice work! Did you build a custom distribution amp? What's driving the LCD screen?
The distribution amp is a simplified version of a design I found on the net. Basically a HC14 and and AC04 followed by a filter. Works for me.
The LCD (128x64) has an NT7538 controller. The controller that starts up the TruePosition GPSDO, reads the time (and sends it to my alarm clock; same controller) and displays the time (or location when the encoder is turned).
The controllers are normally used in industrial control using a 32 bit MCU. Totally overpowered for this task, but I got some from early production runs with small problems that are totally insignificant for me. Since writing their firmware is my day job, I already know how to handle them.
The hardware needs to be hacked a little, though, to get at the interfaces.