How to set up Base-Rover using Ethernet with RTK Reference station?

GPS/GNSS Enclosed Products
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Hello,
I have 2 rtk reference station kits and 2 access points&modems. I am using Teltonika RUT956 as a modem. What I want to do is, one of the rtk stations will work as a rover on our mobile platform. The other one will be a base that will stand on a tripod. Both RTK stations will be connected to separate modems via Ethernet. How can I transmit RTK verification messages between modems in this way? What should be the configurations such as prt, cfg, msg that I need to do via U center?

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How can I transmit RTK verification messages between modems in this way?

Verification Messages? The means of getting RTCM3 messages from the Base to a Rover, is a One Way method. The Base outputs a position (1005) and observation messages (MSM4, or MSM7, ie 1077, 1087, 1097) plus 1230 for GLONASS

Perhaps there is an extension or applet to implement NTRIP? Base would be a Server/Caster

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I am new to RTK concepts. I may say something is missing or wrong. We do not plan to use ntrip since the system we plan to build will not have internet access. How do I send rtcm3 messages that will provide verification on Rover via base? Is a TCP/UDP connection required?

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You said you’re connecting via Ethernet, so I’m not sure how that’s going to work without some router functionality, and presumably IP addresses, it doesn’t have to permit connectivity to the wider internet. You should be able to set up a private network with IP addresses.

For a one-to-many situation you’re likely going to need to use TCP/IP in some form.

Sure you can probably use a Cellular Modem in data mode, without opening a networking context or opening a PPP connection. You’d have one modem in answer mode, and dial into it via the other modem.

RTCM3 is simply a packet format, and all you need is the ability to push that data across your data-link without interference. If you can type/chat between a terminal application at either end, you should be able to move data packets in a similar manner. Perhaps look for tutorials or example of basic data tunnelling / forwarding schemes?

Verification implies you’re trying to prove something works, depending on the receiver models you should be able to confirm packet reception. On uBlox based receivers there’s UBX-RXM-RTCM/COR

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