C-COM Satellite Systems Inc.
Page 61 of 164
7.6.4.6. PL
The PL menu allows for the configuration of the polarization axis. Options include the
setting of the PL zero, as well as the skew adjustment and stow limit functionality, the
polarization offset, slow speed, and current limits for fast and slow speeds.
Fig. 44:
“PL (Polarization ) Configuration
1 – PL Zero
PL Zero is used to convert the A/D value from the potentiometer that physically
determines where the iNetVu
®
Mobile Software places Polarization Angle 0. The
potentiometer PL Zero may vary approxi15% from the default values
(see Appendix 1). The PL Zero is calculated during the Polarization Calibration
process. All New Generation platforms (981, 1201, 1200 Fly-Away and 1210 AC)
and some legacy units are equipped with Tilt Sensors. PL Zero point calibration
calculates and sets the Zero value for all platforms. The user may edit these
values through this window, however any changes may result in failure to
recognize the correct 0° angle. This parameter has a configurable range of (50-
500).
2 – Skew Adjustment and Stow Limit Function
Allows the enabling and disabling of the skew adjustment and polarization stow
limit respectively.
The first character (
E
E) represents the skew adjustment. The second character
(E
E
) represents the Polarization ST limit. The user my change the limit
configuration between:
EE
– Enable Skew Adjustment, Enable Polarization Stow limit
DE
– Disable Skew Adjustment, Enable Polarization Stow limit
ED
– Enable Skew Adjustment, Disable Polarization Stow limit
DD
– Disable Skew Adjustment, Disable Polarization Stow limit
For an iNetVu
®
1200/1500/1800 Ku Mobile Platforms, the Polarization Stow Limit
is constantly ON. 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.
For 2 axial (movement on El and AZ) Ka Mobile Platforms
DD
the Skew and the
Polarization Stow limit will always be disabled.
Z: 090.0
DE
O: +0 S: 6 I: 1.5
1
3
5
2
4
