InternetVSAT.com Proprietary
Below illustrates a StarPro1
remote system
Important note at any timework is carried out on the TX or RX unit the power to the indoor unit
must be turned OFF
Antenna and Feed Assembly
Incoming signals from the satellite are intercepted by the antenna
reflector ("dish") and focused into the feed assembly. The feed
assembly collects receive signals and passes them to the LNB.
The antenna geometry is termed an Offset Feed Parabola, with the
beam (satellite direction) typically oriented 22.6
o
above a line
perpendicular to the antenna face, as shown above. The antenna
mount allows the antenna to be pointed toward the satellite by pivoting
around the mounting mast (azimuth) and by tilting about the mounting
head (elevation). The entire Antenna Assembly can be rotated about
the feed axis to set polarization.
Note that it is not a rule that an antenna offset is 22.6
o
. Refer to the
documentation that accompanies the antenna for the actual offset
specification.
LNB
The LNB provides the low noise amplification and down conversion
from Ku-band or C-band to L-Band. The down converted signals are
then routed to the RCST via coaxial cable. Based on the satellite
downlink frequency bands, the LNB is available to receive the
frequencies as specified below.
