DOC06501_Revision
F
ATS-6501 Users Guide
10
You can verify the current value of the mask angle by sending the
settings
gps:mask_angle
command.
ATS-6501>settings gps:mask_angle
1.000000000001
If this setting is correct type
save
to save the current user default configuration on the
system to ensure the system uses the proper mask angle after a reboot or power cycle.
2.3.5 Positioning Modes
The ATS-6501 offers three different modes for determining the antenna position and
determining receiver operation, dynamic, auto, and manual.
2.3.5.1 Dynamic Position Mode
The Dynamic mode is typically used for systems located on mobile platforms.
Note:
The system default mode is dynamic. Users at static locations should change this to auto
or manual based on the information provided below.
2.3.5.2 Auto Position Mode
The Auto mode is recommended for static locations where the antenna location has not
been surveyed. When using the Auto mode the ATS-6501 will automatically determine the
location of its antenna. It does this by averaging its calculated position solutions over a period
specified by the
auto_hours
parameter. The factory default for the position period is 12 hours. It
is recommended that the auto positioning period should be set to at least 4 hours. Once the
position_period expires the ATS-6501 will enter the fixed position mode
(status
gps:position:fixed)
. Fixing the antenna position reduces the noise of the GPS measurements and
increases the frequency stability of the timing outputs.
To set the positioning mode to auto use the
position_mode
command on the command
port.
ATS-6501>position_mode auto
OK
To set the positioning period, use the
position_period
command. If not specified the
value will be in hours. Users can set this value to minutes using
m
after the value.
ATS-6501>position_period 12
OK
Select the proper datum (WGS84 (default) or NAD83) using the
datum
command.
ATS-6501>datum wgs84
OK
To verify these use the
settings gps
command to check the current settings.
ATS-6501>settings gps