ADInstruments S7200 Operation Manual page 103

AD INSTRUMENTS
Satellite transponder parameter
Satellite longitude:
Low oscillator:
High oscillator:
Transponder name:
Transponder status:
Channel type:
DL-Ku band:
DL-C band:
Bandwidth:
Symbol rate:
Code rate:
Modulation type:
Roll-off factor:
Polarization:
LNB oscillator:
The satellite transponder has many parameters need setup, the follow content
will give some introduction for some important parameters.
LNB (Low Noise Block Down Converter) is composed by microwave LNA (Low
Noise Amplifier) and LNC (Low Noise Converter), the LNC is composed by mixer,
local oscillator and IF preamplifier.
LNB first amplifier receivered C band (3.4~4.2GHz) or Ku band (10.7~12.75GHz)
signal. The second step use the signal frequency minus the local oscillator
frequency in mixer, the different frequency band signals will be converted to
uniform frequency band IF signal (950~2150MHz) which can be processed by IRD.
S7200 TV Signal Analyzer Operation Manual
Come from satellite parameter
User fill content
User fill content
User fill content
Enable, Disable
ANALOG TV, DVB-S, DVB-S2, DSS
User fill content (According to satellite setup)
User fill content (According to satellite setup)
User fill content
User fill content
1/2, 2/3, 3/4, 5/6, 7/8
QPSK(DVB-S，DSS), QPSK，8PSK(DVB-S2)
0.35, 0.25, 0.2
Off, Vertical/RHCP, Horizontal/LHCP
Low, High, Auto
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