8003 Precision Scalar Analyzer
3-52 Manual 20791, Rev. C, June 2001
Modifier Name: FREERUN
Modifier Syntax: FREERUN
Modifier Description: The TRIG modifier puts the Peak Sensor in trigger
immediate mode. In this mode, when a TTL transition
from low to high occurs at the trigger input connector on
the sensor, the Peak Sensor captures and holds the
instantaneous peak power. The internal delay from TTL
trigger to actual power capture is nominally 250 ns. The
user is expected to externally synchronize the trigger to
read at the desired point in the pulse.
Modifier Name: TRIG
Modifier Syntax: TRIG
Modifier Description: The DLYTRIG modifier puts the Peak Sensor in delayed
trigger mode. This mode is similar to the one above
except that a fixed delay is added after the trigger,
before the sensor reads the RF pulse power. This delay
is factory set (or can be adjusted by changing a potenti-
ometer setting on the Peak Sensor circuit board). It’s
nominal value is 500 ns and can be manually adjusted
from 500 ns to 3 m.
Modifier Name: DLYTRIG
Modifier Syntax: DLYTRIG
Description: This verb ascribes attributes to a sensor. Such features as AC or DC detection and offsets
are attributed to a given sensor by a command string beginning with this verb.
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