Advantech SBD75e Series Installation And Operation Manual page 34

Front Panel Monitoring & Control
Note
When selecting a code rate, note that only legal values are selectable. ACM is a special case for DVB-
S2.
Table 3.9: Coding Options
Menu Item
Modulation :
Data Rate :
Frequency:
Freq Offset:
Descrambler:
Pilots:
Outer RS:
Diff. Decoding:
Equalizer:
Remove Mark:
Unframed ASI:
PLS Seed:
3-8
Operations
This option does not appear if ACM has been selected. Only the possible
combinations for the chosen code type and rate will appear. This may also be
limited by the feature keys installed. The possible range is BPSK, QPSK, 8PSK,
16QAM, 16APSK and 32APSK.
This sets either the data rate in bits per second or symbol rate in symbols per
second. The data rate can either be set by the numerical value or by the
up/down arrows. Once the value is set then the units can be changed from BPS
to SPS by moving the cursor to the end and then using the up/down arrows. For
ACM the value must be set as SPS.
-> Data Rate: [199000000 BPS]
-> Data Rate: [199000000 BPS]
The carrier frequency can be set from 950 MHz to 2150 MHz.
This is a convenient way to offset the frequency. In the example shown below
the actual carrier frequency will be 100 Hz lower than that stated in the
frequency setting.
-> Freq offset: [199000000 Hz]
This option is only available if Intelsat is selected. The options are ON or OFF.
This entry will only appear when DVBS2S or DVBS2N is selected and not ACM.
This enables or disables pilot insertion.
This option is only available if Intelsat is selected. The options are off (no Outer
RS), 219 (RS of 219,201) and 126 (RS of 126,112).
This option is only available if Intelsat is selected. The options are ON or OFF
This option is only available if DVB-S2 is selected. The options are the number
of taps required which is off, 6,8,10,12....32
This option is only available if DVB-S or DSNG is selected. It will remove the
MPEG Sync mark from the transport stream. This is used if Non-MPEG traffic is
transmitted using these coding schemes. The option is ON or OFF.
This option is only available if DVB-S, DSNG or Intelsat is selected. If OFF, only
data that conforms to standard transport streams will be transmitted i.e. 188 Byte
packets with 0x47 Sync Marks. When ON, all data will be output.
Physical Layer Scrambling Seed is only available in DVB-S2 modes. This should
be used with caution and the default value is 0. The range for this value is 0 to
262141 and the value is entered in decimal. The Modulator will have to use the
same seed value to lock otherwise the transmitted modulation and code rate will
not be decoded.
SBD75e Series Demodulator Installation and Operation Manual