SeaSpace TeraScan 1.5M Operation And Maintenance Manual page 214

Layout of antenna.calib File
T 10-1:
ABLE
Setting
cl.cs.start
constants
The next four settings control how the two-axis tracking sequence (azimuth, elevation) is converted into a three-
axis tracking sequence (azimuth, elevation, cross-level). There are three different methods available to adjust the
tracking on the maximum elevation of the pass and these three settings.
No cross-level motion during the pass. Cross-level beam remains fixed at 90
used if the maximum pass elevation is less than cl.el.min.
The cross-level beam is moved during the pass. This method will be used if the maximum pass elevation is in
the range [cl.el.min, cl.el.max}.
The cross-level beam is fixed at a non-horizontal position and the antenna elevation motion varies from 0
°
180 . This method will be used if the maximum pass elevation is greater than cl.el.max.
cl.el.min
cl.el.max
cl.el.start
cl.mag
Notes on the Table 10-1:
Program Track: This setting is used in computing the program track for the antenna.
3-Axes Motion: This setting is used in computing the antenna tracking sequence with all three axes
(azimuth, elevation, and cross-level) used in the tracking solution.
Conscan Autotrack: This setting is used by Conscan
198 SeaSpace Corporation
Program 3-Axis
Track Motion
x x
x
x
x
x
.
Conscan
Autotrack Units
x degrees
x
degrees
degrees
fraction
degrees
autotracking.
Description
Conscan parameter: antenna
elevation where cross-level
corrections are used in place of
azimuth corrections.
Individual values for different
types of antennas. See "Constants
Settings" below.
°
(horizontal). This method will be
Minimum elevation that cross-
level motion is involved in the
tracking solution. Example value:
64. Use a value of 90 if cross-level
torque error occurs.
Maximum elevation during a
pass for which the cross-level
beam will be moved. For a 1.5m
antenna, this value is fixed at 90.
Cross-level beam moves when
antenna elevation > cl.el.start *
maximum pass elevation.
Example value: 0.65
Absolute value of the range of
motion of the cross-level beam.
Example value: 15
The cross-level beam will move in
°
the range (90 - 15) to
°
(90 + 15) .
°
to