PT 5780 DVB-T Modulator
ProTelevision Technologies
RS232 Communication
Instruction Manual
Revision 3.11
6-11
•
OUTPut:CRASter
Command to select between the fixed ITU UHF, ITU VHF, ITU UHF and VHF channel rasters
and the user programmable channel raster (UCHannel). Applicable only if the RF converter is
installed and enabled.
Example:
OUTP:CRAS UCH
Select the user defined channel raster.
OUTP:CRAS?
Response:
UCHANNEL
•
OUTPut:VSUBsystem
Command to select the VHF standard from either standard B, standard L or standard I.
Applicable only if the VHF or the UHF and VHF channel raster options are selected.
Example:
OUTP:VSUB vhfb
Select standard B
OUTP:VSUB?
Response:
VHFB
•
OUTPut:UCDefinition
Command for user channel raster definition with the first parameter specifying the start channel
number and the second parameter specifying the base frequency. Applicable only if the RF
converter is installed and enabled and the user defined channel raster is selected.
The format of the command is as follows:
:OUTP:UCD
<start channel no.>, <base frequency>
where
<start channel no.>
is the channel number of the first channel (1 - 99)
<base frequency>
is start frequency for the band, i.e. the lower edge of the first channel
Example:
OUTP:UCD 28,526mhz
Select User channel raster starting with channel
number 28, lower edge of band being 526MHz.
OUTP:UCD?
Response:
28,526000000
•
OUTPut:CHANnel
Command to select the output channel number. The raster to be used must be selected in
advance with the OUTPut:CRASter command. Applicable only if the RF converter is installed
and enabled.
Valid channels numbers are dependent on the channel raster selected:
ITU VHF with standard L:
0 to 5
Bandwidth of 7 Hz
ITU VHF with standard B:
5 to 12
Bandwidth of 8 Hz
ITU VHF with standard I:
1 to 6
Bandwidth of 8 Hz
ITU UHF:
21 to 69
Bandwidth of 8 Hz
User Defined:
0 to 99
Bandwidth – user defined
Example
OUTP:CHAN 21
Set output channel 21.
OUTPCHAN?
Response
: 21
Summary of Contents for PT 5780
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