Minimal RTK Hardware/Concepts

Hi all,

I’ve recently become interested in a minimal RTK type setup to learn more about this technology. I’ve been reading over posts here on discuss and have seen some recently about the Ardusimple RTK units. I understand that something like what is found here - simpleRTK2B Budget (u-blox ZED-F9P) multiband RTK GPS board is a decent entry point into the world of high-precision GPS. I think I understand how these systems work, but was hopeful that someone might be able to fact check me on this. If I currently have an Arducopter with a standard (single) GPS setup - just a Matek M8/M10 unit and a Sik Telemetry radio onboard, and I want to send it RTK corrections, can I simply purchase the items below and then follow the guide here using Mission Planner, more or less? How to send RTK base station corrections to ArduPilot with Mission Planner, QGroundControl and MAVProxy - ArduSimple

Purchase Items

I understand that having a second simplertk2b on the aircraft would yield better positioning, but my understanding is that that would only be true because it has a better GPS receiver than my current Matek M10. Is this correct?

A follow up question not as Ardupilot-specific - if I were to add this module - WiFi NTRIP Master - ArduSimple would this allow me to then cast the RTK corrections from my simplertk2b to a local WiFi network where I could connect a COTS drone that can receive 3rd party NTRIP?

The overall goal is to create a minimal cost/viable RTK correction system that can be used locally on-site and doesn’t require any Internet connection. I’m going for the concept to begin with and am not needing extremely high performance, etc. as this is meant to help me learn how these systems work to start with.

Any help/input/guidance would be appreciated!