QTrack
™
Antenna System
19
Quasonix, Inc.
4.3.2
Target Dynamics
Target Dynamics controls the tracking speed of the antenna. It may be desirable to slow the tracking when noise or
interference becomes evident.
1.
On the Axis Control window, click on the gear button located to the right of the track button, and open the
Track Settings window, as shown in Figure 27.
Figure 27: Track Settings Window
2.
Move the antenna off by about 10°. Note the speed in which it tracks.
3.
In the Track Setting window, set the Target Dynamics slider to about mid-scale. Note the slower tracking
speed.
4.
Set the Target Dynamics slider to about 1/10th scale. Note the slow tracking speed.
5.
Place the slider back to 100%.
4.3.3
Multipath Clipping Angle (MPC)
The Multipath Clipping Angle sets the minimum angle that the antenna can point downwards. When a larger signal
is observed fr
om a multipath reflection (primarily from the ground), this setting restricts the antenna’s lower
positioning.
1.
Track to the center. Select the gear next to the Track button.
2.
In Track settings, set the MPC Angle [degrees] to about 2 degrees larger than the Elevation tracking angle.
3.
From the AGC window, select the MPC button. It will turn yellow, as shown in Figure 28, and the
minimum elevation will be limited at the MPC Angle.
