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a. Auto Mode
In the Auto mode, the ACU displays the skew angle calculated by the PCU. The
SDA-390’s default skew mode is auto. The SDA-390 automatically changes the
skew angle when the satellite is changed.
b. Manual Mode
The Installer or Operator can change the skew angle to the desired skew angle,
as shown below.
Figure 3-15 Setting the Skew Angle in Manual Mode
NOTE: ‘C:’ refers to the current skew angle. ‘A:’ refers to signal strength. ‘S:’
refers to the user setting the skew angle.
c. Trim
User can optimize the default skew angle to find a higher signal level, when
desired satellite has polarity offset. First of all, change the skew angle where
antenna can get higher signal than before using manual mode. And then select
the ‘TRIM’ and press the ‘MENU’. Lastly, select the ‘SAVE’ and press the ‘MENU’.
After save, the skew angle of desired satellite will be changed to new position.
NOTE: Polarity reference of satellite is the equator. However some satellite’s
polarity is other position not the equator for various reasons. And there is polarity
offset between calculated skew angle by PCU and true skew angle on the satellite
Содержание SUPERTRACK SDA-390
Страница 7: ...3 Figure 2 2 Best Location II Figure 2 3 Antenna Blockages...
Страница 11: ...7 Figure 2 7 Tighten the nuts from below...
Страница 22: ...18 Figure 3 2 Antenna Control Unit Front Panel Figure 3 3 Antenna Control Unit Back Panel...
Страница 36: ...32 Connection Staus Display of LCD Figure 4 2 Connection Status SDA 390 with PC...
Страница 39: ...35 Figure 4 5 Satellite List Update Step 2...
Страница 48: ...44 C N Graph You can see the graph of C N on Antenna State Figure 4 13 C N Graph...
Страница 55: ...51...
Страница 57: ...53 Click the SAVE to save to PCU...
Страница 58: ...54 Click the Auto Search to search the satellite Then SDA 390 search and track the desired satellite...
Страница 68: ...64 Appendix E Radome and Antenna Mounting Holes Layout Figure E 1 SDA 390 Plastic Radome Layout...
