Antennas for Reach M2

Hi Artem

Altitude is passed from in the announcement NMEA the observation:

  1. L1?
  2. L2?
  3. Enumerated from average observations L1 and L2?

On the example my aerial L1= 0,0516 m; L2 = 0,0556. Height of the stick 2,00 m.

  1. H = 88,684 - 0,0516 - 2,00 = 86,6324 ?
  2. H = 88,684 - 0,0556 - 2,00 = 86,6284 ?
  3. H = 88,684 - ((0,0516 + 0,0556) / 2) -2,00 = 86,6304?

Which calculation is correct?