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200 Chapter 1
GPIB Command Dictionary
DECoder subsystem
:AMPS|TACS:STANdard <string>
:AMPS|TACS:STANdard?
These commands set/query the expected frame structure and channel
range of the decoder’s incoming signal. Trying to run a test with the
wrong standard selected will result in incorrectly decoded data, or will
result in a displayed error message.
Syntax
DEC:AMPS:STAN ‘AMPS’
‘TACS’
‘JTACS’
DEC:AMPS:STAN?
Screen/field equivalent
DEC:AMPS:STAN controls the Standard field on the SIGNALING
DECODER screen when the Mode field is set to AMPS-TACS.
:AMPS|TACS:TRIGger:PATTern <string>
:AMPS|TACS:TRIGger:PATTern?
These commands set/query the bit pattern to filter displayed
information. The decoder only displays the received data when this
binary pattern is encountered immediately after triggering. This is
helpful when you only want to display messages containing very
specific information.
The trigger pattern is entered as a sequence of ones, zeros, and dots. A
dot will cause the decoder to trigger for either a one or a zero in that bit
position in the received data stream.
Syntax
DEC:AMPS:TRIG:PATT <string>
DEC:AMPS:TRIG:PATT?
Screen/field equivalent
DEC:AMPS:TRIG:PATT controls the Trigger Pattern (bin) field on
the SIGNALING DECODER screen when the Mode field is set to
AMPS-TACS.