Base and rover vs network RTK (CORS/NTRIP): which do you need?
By the Mars Geosystems technical team. Updated .
Short answer: Use network RTK (CORS/NTRIP) when you have reliable mobile data and a correction service in your area – you only need one rover. Use a base and rover kit when you work in remote areas, mines or farms without coverage, or need independence from subscriptions; range is limited by the radio, typically 3–15 km.
How base and rover works
You set the base over a known or averaged point. It broadcasts corrections by UHF radio to one or more rovers. Accuracy is centimetre level within radio range, and there is no subscription.
How network RTK works
A network of permanent reference stations streams corrections over the internet. Your rover receives them through a phone, a controller or a built-in 4G modem. You pay a subscription but carry half the equipment.
Cost and logistics
A network rover costs less up front. A base and rover kit costs more but has no recurring fees and works anywhere. Many firms own one kit and add network rovers.
Our recommendation
If you are unsure, choose a receiver that does both, such as E1 Lite or E1 Pro.
Try it with your numbers
Frequently asked
Can a base and rover also use CORS?
Yes – the rover of a base and rover kit can switch to NTRIP mode whenever mobile data and a CORS account are available.
What range can a UHF radio reach?
Internal radios typically reach 3–15 km depending on terrain and antenna height; an external 25 W radio can reach roughly 20–25 km in open, elevated terrain.