Ericsson RX8000 - Page 479

Technical Specification
EN/LZT 790 0005 R7A
B-19
Parameter Specification
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.20
DVB-S2 modulation (EN 302 307)
DVB-S2 mode Broadcast services
Modulation QPSK, 8PSK
QPSK LDPC FEC rates 1/2, 3/5, 2/3, 3/4, 4/5, 5/6, 8/9. 9/10
8PSK, LDPC FEC rates 3/5, 2/3, 3/4, 5/6, 8/9, 9/10
LDPC FEC frame length Normal
Pilot tones Automatic detection
Symbol rate range Rs = 5 to 31 MSymbol/s, 1 Msymbol/s min with
RX8200/SWO/LSYM
Symbol rate step 1 Symbol/s
Symbol rate lock range
± 100 ppm
Maximum channel bit rate 90 Mbps
Maximum user bit rate 81 Mbps
Es/No (C/No) ratio
See Table B.21
Miscellaneous
DVB-S phase noise tolerance
4
SSB phase-noise power spectral density < -68
– 10*log(Rs/20) dBc/Hz at δF = 10 kHz offset
Phase noise power spectral density of the form
C – 20*Log(δF)
δF = Frequency offset from carrier
Rs = Symbol-rate (Msymbol/s)
DVB-S2 phase noise tolerance
5
-25 dBc/Hz at δF = 100 Hz
-50 dBc/Hz at δF = 1 kHz
-73 dBc/Hz at δF = 10 kHz
-93 dBc/Hz at δF = 100 kHz
-103 dBc/Hz at δF = 1 MHz
-114 dBc/Hz at δF > 10 MHz
LNB power and control
See Table B.22
4
These specifications apply in the presence of thermal noise at the threshold Eb/N
0
ratio given in Table B.20
5
These specifications apply in the presence of thermal noise at the threshold Es/No ratio given in Table B.21 and assume a degradation to
the thermal noise performance of 0.3 dB.