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DVB-C

1. DVB-C

Filter Type

Choice: Root Nyquist | Nyquist

Default: Root Nyquist

Double-click or use the drop-down menu to select the filter type.

[:SOURce]:RADio:DVBC[:BBG]:FILTer RNYQ|NYQ

[:SOURce]:RADio:DVBC[:BBG]:FILTer?

Roll-off Factor

Range: 0 to 1

Default: 0.15

Set the roll-off factor for DVB-C.

[:SOURce]:RADio:DVBC[:BBG]:ALPHa <val>

[:SOURce]:RADio:DVBC[:BBG]:ALPHa?

Modulation Type

Choice: 16QAM |32QAM |64QAM |128QAM |256QAM

Default: 16QAM

Double-click or use the drop-down menu to select the modulation type.

[:SOURce]:RADio:DVBC[:BBG]:MODUlation QAM16|QAM32|QAM64|QAM128|QAM256

[:SOURce]:RADio:DVBC[:BBG]:MODUlation?

Symbol Rate

Range: 100 KSymbols/s to 10 MSymbols/s

Default: 6.900000 MSymbols/s

Set the symbol rate for DVB-C.

[:SOURce]:RADio:DVBC[:BBG]:SYMRate <val>

[:SOURce]:RADio:DVBC[:BBG]:SYMRate?

2. Payload

Data Source Type

Choice: Demo File| TS File | NULL TS Packet | Pattern |PN9 | PN15 | PN23

Default:Demo File

Double-click or use the drop-down menu to select which type to use as the data source.

[:SOURce]:RADio:DVBC[:BBG]:PAYLoad:TYPE DEMOfile|FILE|NULL|PATtern|PN9|PN15|PN23

[:SOURce]:RADio:DVBC[:BBG]:PAYLoad:TYPE?

File Location

Choice: Local| Instrument

Default: Local

Couplings: Displayed only when the Data Source Type is TS File.

Double-click or use the drop-down menu to set the TS file location to local computer or instrument. As a best practice, save the TS file to the local computer and set File Location to Local.

File Name

Couplings: Displayed only when the Data Source Type is TS File.

Click on the right side of the cell to browse your computer and select the TS file.

[:SOURce]:RADio:DVBC[:BBG]:PAYLoad:FILE "<file path/file name>"

[:SOURce]:RADio:DVBC[:BBG]:PAYLoad:FILE?

Sync Insert

Choice: NULL Packet Header (0x471FFF10) | SYNC Byte(0x47) | None

Default: SYNC byte (0x47)

Couplings: Displayed only when the Data Source Type is Pattern, PN9, PN15 or PN23.

Double-click or use the drop-down menu to determine whether a SYNC byte (0x47) or a NULL packet header(0x471FFF10) should be inserted into the test pattern.

[:SOURce]:RADio:DVBC[:BBG]:PAYLoad:SYNC NULL|BYTE|NONE

[:SOURce]:RADio:DVBC[:BBG]:PAYLoad:SYNC?

Pattern Bits

Couplings: Displayed only when the Data Source Type is Pattern.

Enter the data bits to use in a test pattern.

[:SOURce]:RADio:DVBC[:BBG]:PAYLoad:PATTern <val>

[:SOURce]:RADio:DVBC[:BBG]:PAYLoad:PATTern?

Packet Stuffing

Choice: On | Off

Default: On

Couplings: Displayed only when the Data Source Type is Demo File or TS File.

Double-click or use the drop-down menu to enable or disable packet stuffing.

[:SOURce]:RADio:DVBC[:BBG]:PAYLoad:STUFfing 0|1|ON|OFF

[:SOURce]:RADio:DVBC[:BBG]:PAYLoad:STUFfing?

PCR Adjust

Choice: On | Off

Default: On

Couplings: Displayed only when the Data Source Type is Demo File or TS File.

Double-click or use the drop-down menu to enable or disable PCR Adjust.

[:SOURce]:RADio:DVBC[:BBG]:PAYLoad:PCRAdjust 0|1|ON|OFF

[:SOURce]:RADio:DVBC[:BBG]:PAYLoad:PCRAdjust?

PCR Offset Frequency

Range: 0 to 10 MHz

Default: 0.0

Set the frequency for the PCR offset (the offset is calculated using the sin function).

[:SOURce]:RADio:DVBC[:BBG]:PAYLoad:PCRFrequency <val>

[:SOURce]:RADio:DVBC[:BBG]:PAYLoad:PCRFrequency?

PCR Offset Amplitude

Range: 0 to 10 us

Default: 0

Set the amplitude for the PCR offset (the offset is calculated using the sin function).

[:SOURce]:RADio:DVBC[:BBG]:PAYLoad:PCRAMplitude <val>

[:SOURce]:RADio:DVBC[:BBG]:PAYLoad:PCRAMplitude?

Useful Bit Rate

Couplings: Displayed only when the Data Source Type is Demo File or TS File.

Displays the useful bit rate for the current setting.

[:SOURce]:RADio:DVBC[:BBG]:PAYLoad:UBITrate?

Stream Bit Rate

Couplings: Displayed only when the Data Source Type is Demo File or TS File.

Displays the stream bit rate for the current TS file.

[:SOURce]:RADio:DVBC[:BBG]:PAYLoad:SBITrate?

3. MultiPath

Multi-path Channel

Choice: Off | 1 Path | 2 Path | 3 Path | 4 Path

Default: Off

Click on the right side of the cell to open the Multi-path Channel dialog box. Use the dialog box to configure up to 4 static paths. For each path, you can set amplitude attenuation (r), time delay (t [ms]), phase offset (q [rad]), and frequency offset (w [kHz]).

[:SOURce]:RADio:DVBC[:BBG]:MPATh <val>

[:SOURce]:RADio:DVBC[:BBG]:MPATh?