NEO-M8P-2 RTK BASE AND ROVER WIRELESS COMMUNICATION

GPS/GNSS Development Boards
1

Hello all,

I have two SparkFun GPS-RTK Board - NEO-M8P-2 (Qwiic), one configured for base station and working automatically as rover(once it receives RTCM3 messages). I want to know how I am supposed to send RTCM3 messages from base station to rover.

Detailed explanation - I am able to receive RTCM3 messages via wired serial(UART) connection, I want to receive these messages via wireless method at least in 5km range. So can anyone please explain me the ways to receive RTCM3 messages on rover via wireless communication on SparkFun GPS-RTK Board - NEO-M8P-2 (Qwiic) boards. Do I need any additional hardware for wireless communication between base and rover on NEO-M8P-2 (Qwiic) boards(If yes, what hardware you recommend).

Hope to get some help on same.

Thanks in advance!

Regards,

Sakshi

2

All you need is a suitable radio on each end, emulating the wired serial connection. There are many options.

Range will depend greatly on transmit power, antenna, frequency and especially terrain.

3

Take a look at what Ublox did, for their C94-M8P set, which uses a very simple Hope RF module. It has 10-20 km line of sight range.

https://www.u-blox.com/en/product/c94-m8p

4

Hi sakshi,

Please have a look at these tutorials:

https://learn.sparkfun.com/tutorials/se … rtk-system

https://learn.sparkfun.com/tutorials/ho … ce-station

You can find the radio modems here:

https://www.sparkfun.com/products/17255

Cheers,

Paul

5

@PaulZC and @jremington Thank you guys… u helped me a lot. Using serial telemetry kit I am able to transmit data from base station to rover.