@sarahdal , I use ZED-F9P together with SBC Olimex A20-OLinuXino-LIME2.
Here I shared some details: https://wiki.openstreetmap.org/wiki/User:Vazhnov_Alexey/Record_GNSS_traces
I couldn't achieve using precision correction, unfortunately: https://community.openstreetmap.org/t/wroclaw-high-precision-gnss-tracks/92143
