Remote Control
5–10
MTD200 MPEG Test Decoder User Manual
Special numeric values.
The parameters MINimum, MAXimum, DEFault, and
NAN are interpreted as special numeric values.
Upon a query, the numeric value will be returned.
Example:
Setting command:
SYST:COMM:SER:BAUD MAX
Query:
SYST:COMM:SER:BAUD?
Response:
19200
MIN/MAX
MINimum and MAXimum denote the minimum and maximum value.
DEF
DEFault denotes a preset value stored in the EPROM. This value coincides
with the basic setting called up by the *RST command.
NAN
Not A Number (NAN) is represented as 9.91E37. NAN is only sent as a
response. This value is not defined. NAN is typically returned when dividing
by zero, subtracting infinity from infinity and representing missing data.
Boolean parameters.
Boolean parameters represent two states. The ON state (true
condition) is represented by ON or a nonzero numeric value. The OFF state
(false condition) is represented by OFF or the value of 0. Queries always return 0
or 1.
Example:
Setting command:
ROUTe:AUDio:RIGHt ON
Query:
ROUTe:AUDio:RIGHt?
Response:
1
Character data.
Character data follow the syntax rules for keywords and have a
short and a long form. Like any other parameters, they must be separated from
the header by a white space. A query returns the short form of the character data.
Example:
Setting command:
ROUTe:VIDeo PALNtsc
Query:
ROUTe:VIDeo?
Response:
PALN
Summary of Contents for MTD200
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Page 29: ...Introduction to Digital TV Transmission Technique 1 14 MTD200 MPEG Test Decoder User Manual...
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Page 167: ...Remote Control 5 70 MTD200 MPEG Test Decoder User Manual...
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Page 174: ...Maintenance and Checking 6 6 MTD200 MPEG Test Decoder User Manual...
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Page 209: ...Index Index 4 MTD200 MPEG Test Decoder User Manual...
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