No more subscriptions! This is a simple top and bottom plate for your Raspberry Pi-based RTK base station. I highly recommend installing RTKBase on it, its so easy I can't believe anyone still pays their dealerships for RTK subscriptions - check out the AgOpenGPS forums to learn about it.
It holds a Raspberry Pi 4B with the POE+ Hat and a Sparkfun GPS-RTK-SMA ZED-F9P board (the one with USB-C on one side, an SMA hookup on the opposite side, and then a Qwic connection on each side). Has four mounting tabs to fit standard #6 drywall screws.
Uses a 6" Startech USB-A to Right Angle USB-C cable and a bunch of M2.5 standoffs from one of those Amazon kits, and runs off of POE. You can use the USB-C power port if wanted but POE is a cleaner setup.