Receiver Settings - DekTec DTM-3237B User Manual

DTM-3237B – DVB-S2X Receiver with DVB-ASI Output
User Manual

4.5.5 Receiver Settings

Nr Variable
0x00 All
0x03 Frequency
0x05 Symbol Rate
0x09 LNB enable
0x0A LNB voltage
0x0B LNB tone
0x0C DVB-S2 ISI
0x0E Tuner mode
0x0F Tuner bandwidth
* Factory default
8 Auto mode is the default and most common mode of operation. In this mode the user enters only the centre frequency of
the channel to be desired tune. The tuner and demodulator will all automatically set the symbol rate, bandwidth of the
tuner and try to lock to the carrier. When locked all details of the modulation are reported into the receiver status.
Set bandwidth is special mode that allows to set the bandwidth of the tuner. This mode is designed to measure input
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signal level and AGC level for the set bandwidth of the spectrum. In this mode the user enters the centre frequency of the
channel and the bandwidth of the tuner. The demodulator is unlikely to achieve lock and only the power and AGC level
measurement will be accurate.
10 Manual DVB-S mode is a mode that allows to manual set known parameters of the tuner and demodulator for DVB-S
signals. In this mode the user enters the centre frequency and symbol rate of the channel to be desired tune. The tuner and
demodulator try to lock to the carrier. When locked all details of the modulation are reported into the receiver status.
Manual DVB-S2 mode is a mode that allows to manual set known parameters of the tuner and demodulator for DVB-S2
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signals. In this mode the user enters the centre frequency and symbol rate of the channel to be desired tune. The tuner and
demodulator try to lock to the carrier. When locked all details of the modulation are reported into the receiver status.
Manageable Items – Category 0x90 – Receiver settings
All settings in this category
Frequency in Hertz
Range: 950000000...2150000000
Symbol rate in BPS (only used when
tuner mode is set to DVB-S or DVB-S2)
LNB power enabled/disabled
0* = Disabled
1 = Enabled
LNB voltage
0* = 13V
1 = 14V
2 = 18V
3 = 19V
LNB 22kHz tune enabled/disabled
0* = Disabled
1 = Enabled
DVB-S2 input stream identifier
Used to filter a multiple input stream in
case the receive mode is Transport
Stream
Valid range: 0...255
Tuner mode
0* = Auto
1 = Set bandwidth
2 = Manual DVB-S
3 = Manual DVB-S2/S2X
Tuner bandwidth in MHz (only
applicable when tuner mode is set to '1'
"Set bandwidth")
Valid range: 4..40
Description
8
9
10
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23
Access Type
RO 14 bytes
R/W uint32
R/W uint32
DE-R/W uint8
DE-R/W uint8
DE-R/W uint8
R/W uint8
R/W uint8
R/W uint8