12713020-002-2 Revision D – April 2004 SSU-2000 User’s Guide 335
Interactive Command Set
Options are:
lat Antenna latitude. The decimal point determines the
input format. For example, the format is dd:mm:ss.ss for
entering 30:27:49.8 seconds.
lon Antenna longitude. The format is dd:mm:ss.ss.
height Antenna height; ±10,000.0 meters.
AVG n Number (n) of averages for the calculated position fixes.
Range is 10 to 1,000. Setting this places the unit into
survey mode. The frequency control is placed into
holdover during survey mode.
AVAIL Shows the current satellite availability. A table is
generated with the following information:
SV Satellite PN code ID.
Elev Current elevation above the horizon of the satellite, in
degrees.
Azmth Azimuth of the satellite, in degrees.
Hlth Health of the satellite, either H or U. Unhealthy can also
mean that the user has set the receiver to ignore the
satellite.
PDOP Sets the current Position Dilution of Precision or pdop
mask (1 through 10). Pdop is a measurement that
indicates the geometry of the GPS satellites that the
SSU-2000 is tracking. Lower values indicate better
geometry.
TDATA Provides tracking information for the engine. Available
options are:
ON Tracking data displays on that communications port.
OFF Tracking data does not display on that communications
port.
CLR No tracking data displays on any communications port.
FREQ {ADD|DEL} freq
Allows for adding or deleting a CDMA pilot frequency
value and freqval = pilot frequency in MHz (decimal
based, for example: 3.4328).
Level 4 Same as Level 3 operation
Note: Only satellites that are above the current elevation mask are
shown.
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