I bought two simpleRTK2B-F9P boards with two xbee modules (SX 868) in order to send the UBX data over the air, but I have just realized that the bandwidth is not enough (payload is too large), is there an alternative I can use instead of SX 868 ?
thank you !
One alternative is to use more compact messages. If you only want the position, only send one message over the air. Sending signal levels or raw data over the air is not possible for example.
A second alternative is connection via IP. With our WiFi modules you have the TCP/UDP socket server/client feature: https://www.ardusimple.com/wifi-ntrip-master-hookup-guide/
What are the specific bandwidth and distance requirements?
WiFi and Cellular might offer the most reasonable solutions.
Beyond that you tend to get into much more higher powered, and expensive solutions.