RAW FILE GPS POSITION

has any one used the raw gps elispoid ht?
is this elevation @ the ground or @ the phase center ??
& if so, which one L1 or L2
is this elevation @ the ground or @ the phase center ??
& if so, which one L1 or L2
Carlson Software Discussion Group
http://update3.carlsonsw.com/forum/
http://update3.carlsonsw.com/forum/viewtopic.php?f=15&t=3324