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but will reduce the C/N ratio at the same time. The C/N ratio tracking method will not
cause the antenna to track off the target satellite.
4.3
Methods of Finding Satellite
VS61 has four satellite finding methods: manual pointing, auto searching, manual
searching, and reference searching. The user can select the proper method by satellite.
4.3.1 Manual Pointing
In this pointing method, the user controls the antenna manually by entering the desired
EL and AZ. The ACU will not perform any searching pattern but tracking is always on.
This is a handy option, and is used primarily during the initial installation and
troubleshooting process.
4.3.2 Manual Searching
The EL and AZ values are entered manually in lieu of being automatically calculated by
the ACU. The antenna first points the manually-entered EL and AZ values and then
performs the search to locate the target satellite. After the searching condition has been
met, the antenna will automatically enter a tracking mode.
4.3.3 Auto Searching
Auto-Searching is the most recommended searching method. The system runs a built-
in satellite calibration program using pre-configured information such as satellite longitude
and automated GPS (site) location data, which can be manually entered in the case of a
GPS failure.
The program calculates the EL and AZ values, and then the antenna points to that
calculated satellite position and begins the search process to find the target satellite.
After the searching condition has been met, the antenna enters into the tracking mode.
Summary of Contents for Ku-BAND RX
Page 1: ...INSTALLATION AND OPERATION MANUAL FOR VSAT VS61 Ku BAND TX RX ANTENNAS...
Page 15: ...7 Figure 3 1 Best Location Figure 3 2 Antenna Blockages...
Page 46: ...38 Figure 4 1 Step 1 of Reference Searching Definition...
Page 65: ...57 Figure 6 3 Co pol Kits Optional...
Page 120: ...d Appendix C Layout of Radome and Antenna Mounting Holes Figure C 1 Plastic Radome...
Page 121: ...e Figure C 2 FRP Radome Option...
Page 122: ...f...
Page 123: ...g Maritime Satellite Antenna...