[time-nuts] Raspberry Pi 4 oscillator replacement

[Avamander]

Hi,

I was wondering if anyone here has replaced the 54 MHz oscillator on the
Raspberry Pi 4 with a GNSS-disciplined rubidium standard? An overkill
upgrade, but is technically doable? What hardware would it take in addition
to a GNSS-disciplined rubidium standard and a Pi 4?

Here's where I got my inspiration from, someone replacing the oscillator on
a Pi 3 with a TXCO:
https://raspberrypi.stackexchange.com/questions/74482/switch-out-the-x1-oscillator-on-a-rpi-2-3


Yours sincerely,
Avamander