It's possible. I recall one particular POTA activation where my DT kept creeping higher and higher, up to around 2.0s, and a Pi restart didn't fix it. I am still sick here so I haven't had the opportunity to get out and test my changes yet. I have also not yet passed these changes from my Pi 4 8gb to my Pi 4 4gb and Pi Zero 2 W.
Do you run a Windows or Raspberry Pi platform for your roves? I use Raspberry Pi for most of my POTA and Windows for my roves. If you use Windows, I recommend N1MM with integrated WSJT-X for logging and digimodes, and BKTTIMESYNC with a USB dongle for GPS time sync. Another thing to note is that I had excellent luck using Bluetooth to network two laptops together with N1MM. Bluetooth was, in my tests, way more reliable than using ethernet between the laptops. As I recall I could not get Wifi working.
GPS time syncing is a fascinating topic!?
73 VE3GKT?
