Is Here 4 compatible with Here+ RTK base?

Hello there,

We’re preparing a drone swarm with the need of RTK GPS and I got two questions:

  1. Is Here 4 compatible with HERE+ RTK Base? Or do I need Here 4 Base?
  2. What are the improvements of Here 4 compared to Here 3 (Here 3+)

Thanks for the response in advance!

@philip

@Rajdr Here+ RTK Base is L1 only, so it will only provide L1 corrections to Here4. So it will work, just not as good as if you used Here4 base which can provide L1 and L5 band corrections. Here4 adds support for Dual Band GNSS (L1 and L5) wherease Here3 and Here3+ is L1 only.

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So using Here4 with Here+ RTK base will give similar performance to Here3+?

If I have a multi-vehicle setup with some Here3+ and some Here4, they will work about the same in terms of RTK with the Here+ RTK base?

Then if I upgrade to the Here4 RTK base, that would further improve the Here4 RTK performance (but Here3+ would stay about the same).