Base mode - antenna height

[timd1971]

Hopefully this helps too?

Collecting & Staking / Setting Out Points (BASE AVERAGE SINGLE)(Multiple days)

(2) Reach RS (Edison chips) (1) as the BASE (1) as the ROVER LoRa communication between them. Just to make sure everything is ok here, got a question to help clarify things. Set my BASE up anywhere in the area of work with best clear sky view and highest elevation. I let it AVERAGE SINGLE for a few minutes. (not using NTRIP CORS) (I mark where the BASE is physically for day 2 work)(note: In my case I do NOT need to use a KNOWN POINT from public or surveyor provided records etc to set on.…

Per @igor.vereninov this is the key:

Finding Accurate Base Position

If you are averaging base position your antenna height is zero. Non-zero antenna height should be used if base is set up on a known point. Antenna height is elevation from known point (which is usually on the ground) to antenna level (antenna is usually on a tripod). In your case you are directly measuring the location of your antenna using GPS, so base antenna height is zero.