Terrasat Rx 1+1, Operation Manual

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Functional Description
The LNB is available in the frequency bands listed in Table 2.2 .
DC Supply
The DC-powered Rx 1+1 interface module is supplied with DC voltage from 20 VDC
to 60 VDC. For the A: side unit, supply comes through connector J2 (from the power
supply that powers the A: side unit). The A: side power supply is routed to a DC/DC
converter that generates the voltage that supplies the A: side LNB
For the B: side unit, supply comes through connector J3 (from the power supply that
powers the B: side unit). The B: side power supply is routed to a DC/DC converter
that generates the voltage that supplied the B: side LNB. Both power supplies are
routed to a DC/DC converter that generates the voltage that supplies all internal
circuitry.
This process is depicted in Figure 2.3 for +48 VDC systems and in Figure 2.4 for
-48 VDC systems.
Table 2.2
Receive Frequency Plans
Signal RF Frequency L-band Out Frequency Noise Temperature
Standard C-band
3.625 GHz to 4.200 GHz 950 MHz to 1525 MHz 15 °K/20 °K/35 °K
Palapa C-band
3.400 GHz to 4.200 GHz 950 MHz to 1750 MHz 15 °K/20 °K/35 °K
Insat C-band
4.500 GHz to 4.800 GHz 960 MHz to 1260 MHz 15 °K/20 °K/35 °K
X-band
7.250 GHz to 7.750 GHz 950 MHz to 1450 MHz 60 °K
Ku-band
10.950 GHz to 11.700 GHz
11.700 GHz to 12.200 GHz
12.250 GHz to 12.750 GHz
950 MHz to 1700 MHz
950 MHz to 1450 MHz
50 °K/60 °K
Ka-band
18.200 GHz to 19.200 GHz
19.200 GHz to 20.200 GHz
20.200 GHz to 21.200 GHz 950 MHz to 1950 MHz
950 MHz to 1950 MHz
950 MHz to 1950 MHz
100 °K