C-COM Satellite Systems Inc. Page 105 of 164
Slow Speed
The iNetVu
®
software bases the default polarization motor slow speed on the platform
size and type. See Appendix 1 for details. The user may change this value, however
doing so could result in difficulty for satellite acquisition.
Polarization Offset
By default this polarization-offset value is set to 0°. If there happens to be a requirement
for a polarization offset, the user may manually enter this value in this area. This area is
also updated automatically if the skew adjustment procedure recognizes an incline which
will adjust the target polarization angle.
Low Platform Current
Low Platform Current is a software controlled current protection for the Mobile Platform’s
polarization motors. See Appendix 1 for the default current limits for all iNetVu
®
Mobile
Platforms.
Disable Polarization ST (STOW) Switch
Allows for enabling and disabling the ST (STOW) limit. A check mark in the box implies
the limit has been DISABLED.
Skew Adjustment (Enable Skew Adjustment)
The Skew Adjustment will rotate the antenna on the azimuth axis 90° on each side of the
peaked signal and then re-position on signal with an adjustment to the polarization for
any inclined surface. This box must be checked if the user wishes to enable this feature.
If left unchecked, the system will not do the skew adjustment.
Calibrate PL
Performs automated Polarization Calibration process. Platforms with Tilt
Sensors must ensure the Sensor is levelled prior to running the PL Zero
point calibration. Calculates and populates zero value for PL offset.
i. Antenna will completely rotate counter-clockwise to the physical
limit and temporarily record the A/D value from the Potentiometer.
ii. Antenna will completely rotate clockwise to the physical limit and
temporarily record the A/D value from the Potentiometer.
iii. Based on the A/D values of the two (2) physical limits and the
maximum range of motion for the Mobile Platform, the PL Stow
switch location is calculated.
iv. Antenna will center itself and attempt to locate the cut-off edges of
the Polarization Stow Switch.
v. After detecting at which angles the ST Switch turns OFF, the
Polarization zero position is calculated and the PL Zero is set at
the zeroed A/D value.
To Next Page
Loading...
Need help?
General
