PT 5780 DVB-T Modulator
ProTelevision Technologies
RS232 Communication
Instruction Manual
Revision 3.11
6-13
Example:
OUTP:PEAK:CLIP 5
Set clip level to 5dB.
OUTP:PEAK:CLIP? Or :OUTP:PEAK?
Response:
5
6.2.3.7
MONitor command
•
:MONitor:SOURce
Command to select a source to monitor. Choices are HP Input, HP Output, LP Input, LP Output,
Test picture, or Demodulator.
Example:
MONitor:SOURce HPIN
Monitor the HP input signal.
MONitor:SOURce?
Response:
HPIN
6.2.3.8
PRECorrect (Nonlinear Pre-corrector) commands
•
PRECorrect:ENABle
Command to activate (ON) or deactivate (OFF) the non-linear pre-corrector function. Switching
the pre-corrector on activates the pre-corrector function and downloads the “active curve”. The
“active curve” is defined as the curve that is functional when the pre-correction function is
operational.
Example:
PREC:ENAB ON
Activate the non-linear pre-corrector function.
PREC:ENAB?
Response:
ON
•
PRECorrect:GAIN
Command to change the non-linear pre-corrector input gain.
Example:
PREC:GAIN 1.0
Set the gain to 1.0 dB.
PREC:GAIN?
Response:
1.0
•
PRECorrect:DESCription
Text string for identifying the “active” curve using a maximum of 30 characters.
Note that the query command returns an empty string if there have been no non-linear pre-
correction curves recalled.
Example:
PREC:DESC “Test 2”
Names the ”active” pre-corrector curve, “Test 2”
PREC:DESC?
Response:
Test 2
Содержание PT 5780
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