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primary antenna. By default, if you leave the base mode to
operate the receiver as a rover, the receiver will assume this
antenna model is still used as the primary antenna. You
cannot choose an antenna model for the secondary antenna
using the front panel. This operation needs to be done from
within the Web Server.
SP90m Delivering
Heading
Measurements
The receiver will measure the heading angle of the vector
connecting the secondary antenna to the primary antenna.
On the receiver’s General Status screen, the receiver will
display “AUTO” or “SDGPS” indicating that the position for
the primary antenna is either computed in autonomous or
SDGPS mode respectively.
Press one of the vertical keys to see the computed position
for the primary antenna (marked ) and the heading
screen. No position is computed for the secondary antenna
(marked ).
Use the Web Server to configure the receiver:
• Go to Receiver > Position > Heading Setup
• Set Mode to Heading. This automatically sets Input to
Internal.
•Use the Length Type field to qualify the baseline, i.e. the
distance between the primary and secondary antennas:
– If it is assumed to have a strictly fixed value (the two
antennas are mounted on a single, rigid support),
1
2
N
Heading
Baseline Vector
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