RS232 Communication
ProTelevision Technologies
PT 5780 DVB-T Modulator
Instruction Manual
Revision 3.11
6-8
Query command only. Provides the transport stream buffer fill indicator for the high priority
signal in a hierarchical system, in terms of number of packages.
Example:
INP:BUFF:HP?
Response:
1
•
INPut:BUFFerfill:LP?
Query command only. Provides the transport stream buffer fill indicator for the low priority signal
in a hierarchical system, in terms of the number of packages.
Example:
INP:BUFF:LP?
Response
:
0
•
INPut:TXIDent
Command for selecting the address for receiving optional MIP data. This command is only
available in SFN versions of the modulator. A valid address between 0 and 65535 can be
selected (address “0” is reserved for broadcasting messages from the SFN Adapter. To be able
to address the specific modulator in question a unique address in the range 1 – 65535 must be
selected).
Example:
INP:TXID 25
Select address 25.
INP:TXID?
Response:
25
6.2.3.6
OUTPut commands
•
OUTPut:MODE:IFFT
Command to select the FFT size from either 2k or 8k.
Example:
OUTP:MODE:IFFT F2K
Set system for 2k IFFT
OUTP:MODE:IFFT?
Response:
2K
•
OUTPut:MODE:CODerate
Command to select the code rate (high priority if hierarchical option of modulator). Parameter
choices are ½
, , ¾
,
5
/
6
, or .
Example:
OUTP:MODE:COD R1_2
Set code rate to ½
.
OUTP:MODE:COD?
Response:
R1_2
•
OUTPut:MODE:LPCoderate
Command to select the low priority code rate. This command is only available if the hierarchical
option was purchased with the modulator. Choices of code rate are ½
, , ¾
,
5
/
6
, or .
Example:
OUTP:MODE:LPC R1_2
Set low priority code rate to ½
.
OUTP:MODE:LPC?
Response:
R1_2
Содержание PT 5780
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