Ericsson RX1290 Guia do Utilizador Página 102

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Technical Specification
Page B-10 Reference Guide: RX1290 H.264 Contribution Receiver
ST.RE.E10228.1
B.4 Input Specifications
B.4.1 DVB-S2 Satellite Receivers
General
Table B.10: 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
Input impedance 75
Return loss > 11 dB
Isolation between inputs > 60 dB, typically 70 dB
L-band Frequency
Tuning range
2
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
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.11
2
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.
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