Hello！😊
That depends on three things: your working environment, how mobile you need to be, and the distance between the modules.
1. 4G/LTE (Network RTK)
Best for cities or long-distance work where you have good cell service. It sends correction data over the internet.
Pros: No distance limit, great coverage.
Cons: Needs a data plan and a reliable signal.
2. Radio Modules (UHF)
Best for remote areas like mountains, forests, or mines where there's no cell signal. The base and rover talk directly over radio.
Pros: No ongoing costs, works without external networks, reliable if you have a clear line of sight.
Cons: Range is limited (usually a few kilometers), and hills or interference can affect performance.
3. Serial Connections (RS-232 / TTL)
Best for embedded systems or close-range setups where the GNSS module and controller are physically connected — think inside a robot, drone, or vehicle.
Pros: Very stable, no wireless interference, low latency, and doesn't rely on anything external.
Cons: Limited by cable length, not practical if the base and rover need to move far apart.
What's your setup like — are you working in the field, or is this for a vehicle or robot?
