78 Serial Communication and Command Set
9.2.7 Position Data Commands
Set Position Hold − Elevation
Command: MMMMM.mmH
MMMMM.mmH command sets the antenna elevation in meters MSL (mean sea level); fractional
meters of elevation are optional. Survey must be turned OFF and Position Hold ON to enter
position data.
Response:
C
Format: MMMMM.mmH
M = meters
m = fractional meters
Set Position Hold − Latitude
Command: dd:mm:ss.sssN(S)
dd:mm:ss.sssN(S) sets antenna latitude (in Position-Hold Mode) in degrees, minutes and seconds,
North or South. Survey must be turned OFF and Position Hold ON to enter position data.
Response:
C
Format: dd = degrees
mm = minutes
ss.sss = seconds (fractional seconds, optional
N = North (S for South)
Set Position Hold − Longitude
Command: ddd:mm:ss.sssE(W)
ddd:mm:ss.sssE(W) sets antenna longitude (in Position-Hold Mode) in degrees, minutes and sec-
onds, East or West. Survey must be turned OFF and Position Hold ON to enter position data.
Response:
C
Format: ddd = degrees
mm = minutes
ss.sss = seconds (fractional seconds, optional
E = East (W for West)
Return Elevation
Command: LH
LH returns the current antenna elevation. In Position Hold mode, ‘LH’ returns the current position-
hold elevation setting. In Fix mode, LH returns the most recent computed elevation value (calcu-
lated each second). Elevation is referenced to the WGS-84 datum.