COBHAM Sea Tel 9711-56 IMA C Band, Руководство по установке

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Setup – Satellite Configuration Sea Tel 9711-56 IMA
13-2
EAR Controlled - ECCN EAR99
Increment to the right (parallel to the satellite arc), search up along the polarization angle SWEEP
INCR degrees, step two Search Increments to the left, search down, etc expanding out in the search
pattern until Search Limit is reached. When the end of 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
If the ship does not have a gyro compass to use as a heading input to the MXP, you may manually key
in the actual heading of the vessel and then re-target the desired satellite, every time you need to re-
target a satellite, or configure the MXP to do a “No Gyro Search Pattern”.
Initially the antenna will go to the “Start” relative azimuth position at the calculated elevation. Then
the antenna will search up 450 degrees in azimuth, search up one Search Increment in elevation,
search down 450 degrees in azimuth, search down two Search Increments in elevation, etc until
Search Limit is reached. When 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 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 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.