распечатать
|
QPSK demodulator
|
|||
|
Input frequency range
|
[MHz]
|
950 - 2150
|
|
|
Input level
|
[dBµV]
|
40-80
|
|
|
SAT IF input
|
[Ω]
|
F jack, 75
|
|
|
Return loss
|
[dB]
|
≥10
|
|
|
AFC-catch range
|
|
adjusted automatically
|
|
|
SAT IF bandwidth
|
[MHz]
|
36
|
|
|
Spectrum shape
|
[%]
|
35 (cos-roll-off)
|
|
|
Input data rate
|
[Mbaud]
|
2 - 35, adjustable
|
|
|
Viterbi decoding acc. DVB
|
|
1/2, 2/3, 3/4, 5/6, 7/8, auto
|
|
| QAM modulator | |||
|
Modulation
|
|
16-, 32-, 64-, 128-, 256-QAM
|
|
|
Signal processing
|
|
according DVB-C standard
|
|
|
Spectrum shape
|
[%]
|
15 (cos-roll-off)
|
|
|
FEC
|
|
Reed-Solomon (204,188)-Code
|
|
|
Data rate adjust
|
|
+ | |
|
PCR correction/PID filtering
|
|
+ | |
|
NIT handling
|
|
+ | |
|
Output symbol rate
|
[Mbaud]
|
3,45 - 6,9
|
|
|
Bandwidth
|
[MHz]
|
4 - 8, depends on input data rate
|
|
|
Brutto data rate
|
[Mbits]
|
app. 13,8 …55,2
|
|
| RF output | |||
|
Connectors
|
[Ω]
|
IEC jack , 75
|
|
|
Frequency range
|
[MHz]
|
47 - 862 (C 02 - C 69)
|
|
|
Output level
|
[dBµV]
|
80 …96 adjustable
|
|
|
Shoulder attenuation
|
[dB]
|
typ. 58
|
|
|
MER (Equalizer, 64 QAM)
|
[dB]
|
typ. 45
|
|
|
Spurious freq. distance 40 - 862 MHz
|
[dB]
|
> 60 discrete interferences / > 57 noise interferences
|
|
| Common data | |||
|
Power consumption
|
[W]
|
12,8
|
|
