Sea Tel 5012-91, Руководство по установке, Страница: 76 / 138

5012-91 Installation Manual Setup – Satellite Configuration
13-2
the search pattern is reached, the MXP will retarget the antenna to the calculated Azimuth and Elevation
point.
If the desired signal is found (AND network lock is achieved in the satellite modem) at this position, or
anywhere within the search pattern, the MXP will terminate search and go into Tracking mode. If the desired
signal is not found the MXP will wait SEARCH DELAY, then target the antenna to start point shown in the
graphic above and begin the search pattern again. This cycle will repeat until the desired satellite signal is
found or the operator intervenes.
13.1.3. Sky Search Pattern
A Sky Search pattern does a hemispheric pattern. It behavior is different if you have a gyro compass input or
not::
No Gyro
- If you do not have gyro compass set the gyro type to “no gyro”. When in this mode, Sky Search
drives the antenna to the calculated elevation angle and then drives azimuth CW 450 degrees, steps elevation
up and then drives azimuth CCW 450 degrees and continues to alternately steps elevation up/down and
drives azimuth alternately CW/CCW 450 degrees. Because of this large search area, acquiring the satellite will
take longer than if you have valid heading input. If the end of the search pattern is reached, the MXP will
retarget the antenna back to the start point shown in the graphic below.
With Gyro
- If you have gyro compass set the gyro type to the appropriate selection. When in this mode,
Sky Search drives the antenna to the calculated elevation angle and then drives azimuth CW
360
degrees,
steps elevation up and then drives azimuth CCW 360 degrees and continues to alternately steps elevation
up/down and drives azimuth alternately CW/CCW 360 degrees. Because of this large search area, acquiring
the satellite will take less time because you have valid heading input. If the end of the search pattern is
reached, the MXP will retarget the antenna back to the start point shown in the graphic below.
If the desired signal is found (AND network lock is achieved in the satellite modem) at any position within the
search pattern, the MXP will terminate search and go into Tracking mode.
If the desired signal is not found within the search pattern the MXP will wait SEARCH DELAY seconds and
then begin the search pattern again. This cycle will repeat until the desired satellite signal is found or the
operator intervenes.
13.2. TX Pol select
Is used to select the transmit polarity of the C-Band Linear/Circular selectable feed, or the Ku-Band linear feed,
whichever is currently installed.
13.3. Band select
Controls the band selection of the selected LNB (X-Pol or Co-Pol ) on the Ku-Band linear feed ONLY. This setting works
in conjunction with the X-Pol / Co-Pol selection setting.
13.4. X-Pol / Co-Pol select
Selects the desired (X-Pol or Co-Pol) on the Ku-Band linear feed ONLY. This setting works in conjunction with the band
selection setting.
13.5. Selecting/Configuring Your Satellite Configuration
Choose a predefined satellite configuration or create a new one using the steps below.