932502G / 0618 7. FIRMWARE COMMANDS AND RESPONSES
SET_TIME_ETP value
Sets the Enhanced Throughput Mode protection time, in microseconds. value ranges from
0.1 ìs to 200 ìs in 25-ns increments.
Example:
SET_TIME_ETP 50 Set the protection time to 50 ìs.
SET_TIME_START hour,min,sec
Sets the start time to the specified values. Normally the start date and time are set automati-
cally whenever a device is started with the START command. See also SHOW_TIME_
START, SET_DATE_START, SHOW_DATE_START, SET_DATE, and SET_TIME.
SET_TRIGGER_POLARITY polarity
This sets the polarity of the input trigger for the sample changer (which occurs on the
SAMPLERDYIN BNC) to zero or 1. Zero means it is negative-edge triggered and triggers
on a high-to-low transition; 1 means the trigger is positive-edged and triggers on a low-to-
high transition. See also TRIGGER, ENABLE_TRIGGER, DISABLE_TRIGGER,
SHOW_TRIGGER, and SHOW_TRIGGER_POLARITY.
SET_TRIGGER_SAMPLE setting
Selects the triggering source in Insight Mode. See LIST_TRIGGER_SAMP for legal trigger
sources.
SET_TRUE ticks
Sets the true-time counter to the specified number of ticks. The number represents true time
in units of 20 ms (50 ticks/sec). Normally this value is set by the DSPEC 50 during data
acquisition. See also CLEAR_COUNTER and SHOW_TRUE.
Non-USB Execution Errors:
%131135083<CR> The command was attempted while spectrum acquisition was
in progress. No action was taken.
SET_TRUE_PRESET ticks
Sets the true-time preset to the specified number of ticks (20 ms/tick). During data
acquisition when the true-time counter reaches the preset number of ticks, the preset is
complete and the acquisition is stopped. Setting a true-time preset to 0 ticks disables the
preset. See also CLEAR_PRESETS and SHOW_TRUE_PRESET.
Non-USB Execution Errors:
%131135083<CR> The command was attempted while spectrum acquisition was
in progress. No action was taken.
SET_ULD value
This sets the upper level discriminator to value, in channels.
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