Technical Specification
Page B-12 Reference Guide: TT128x High Definition Professional Receiver/Decoder
ST.RE.E10141.5
B.4.3 DVB-S2 Satellite Receivers General
Table B.13: DVB-S2 Satellite Receiver Input Specification
Parameter Specification
L-band input
Safety status SELV
Number of inputs 4 (TT1280/HWO/DVBS2)
3 (TT1280/HWO/DVBS2/IF/CONST)
Input connector type F-type, female 75 Ω
Input impedance 75 Ω
Return loss > 11 dB
Isolation between inputs > 60 dB, typically 70 dB
L-band Frequency
Tuning range9 Fc = 950 to 2150 MHz
Tuning step 1 kHz
Carrier frequency search range ± 1 to ± 5 MHz
Receive spectrum sense Normal and inverted
L-band Power
Input power level per carrier -65 to –25 dBm
Total L-band input power < -10 dBm
Oscillator power at the L-band input < -65 dBm, 950 < Fosc < 2150 MHz
IF Monitor Input
Safety Status SELV
Number of inputs 0 (TT1280/HWO/DVBS2)
1 (TT1280/HWO/DVBS2/IF/CONST)
Input connector type BNC, female 75 Ω
Input impedance 75 ���
Return loss -19 dB typical
Tuning range Fc = 50 to 180 MHz
Tuning Step 1 kHz
Input power level per carrier -40 to –25 dBm
DVB-S Modulation (EN 300 421)
Modulation QPSK
Convolutional FEC rates 1/2, 2/3, 3/4, 5/6, 7/8
Symbol rate range Rs = 1.0 to 45.0 MSymbol/s
Symbol rate step 1 Symbol/s
Symbol rate lock range ± 100 ppm
Eb/No ratio See Table B.14
DVB-S2 Modulation (EN 302 307)
DVB-S2 Mode Broadcast Services
Modulation QPSK, 8PSK
9 The displayed frequency is either L-band or SHF dependent on the LNB frequency and the SHF carrier frequency set
in the satellite receiver input menu.