SurvCE records GPS heights as the ellipsoid height, expressed in meters, at either the phase center or the ARP of the antenna, depending on the GPS manufacturer. If the position is recorded to the ARP, then the LS record (antenna height) will only reflect the user-entered value. If the position is recorded to the phase center, then the LS record (antenna height) will reflect the user-entered value plus the phase center offset.
SurvCE records the ARP position for the following GPS manufacturers: