Calibration of the SAILOR 900 VSAT
6-4
Chapter 6: Configuration
98-133966-G1
3. Enter the data for the satellite that you want to use as a calibration
reference. You can enter the satellite data manually or select a
satellite from the list of predefined satellites (Eutelsat). For satellite
information see
www.lyngsat.com.
Note the following calibration requirements:
Elevation cutoff: Not relevant for calibration.
Figure 6-3: Service profile for calibration
Satellite requirements for successful calibration
Elevation
Elevation angle: 5 — 70 degrees
Not allowed for calibration: Inclined orbit.
System encryption
DVB-S or DVB-S2
Polarisation
Horizontal or vertical polarisation.
Not allowed: Left-hand circular (L) or right-hand circular (R).
Symbol rate
The DVB symbol rate must be >5 Ms/s.
NID
Preferably a unique NID (ONID).
An azimuth calibration without NID can be useful in regions
where the satellite operators do not broadcast NID (US, China,
Australia etc.).
For NID=0 the NID is not used when checking the satellite link.
Table 6-1: Satellite requirements for elevation and carrier
SAILOR900TM.book Page 4 Monday, September 16, 2013 11:01 AM
Содержание Sailor 900 VSAT
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Страница 354: ...Index 10 Chapter Index 98 133966 G1 SAILOR900TM book Page 10 Monday September 16 2013 11 01 AM ...
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