Giga-tronics 58542 - Sensor & Channel Configuration; Measurement Triggering; Memory Functions

58542 VXIbus Universal Power Meter
2-6 Publication 21555, Rev. E, September 2002
2.5.3 Sensor & Channel Configuration
The Calculate subsystem of the Measurement Function Block contains commands that define the form
of the measured data from sensor 1 and sensor 2. Calculate commands define the configuration of the
two Software Calculation Channels. For example, the CALC1:POW 1 command configures channel 1
to report the power level as measured by sensor 1. CALC2: RAT 2,1 configures channel 2 to report the
ratio of power levels, sensor 2 over sensor 1.
2.5.4 Measurement Triggering
The power meter uses the Trigger Subsystem to trigger measurements in two different operational modes
- a normal mode which maximizes the instrument’s functionality, and swift and burst modes that
maximize the power measurement rate.
2.5.5 Memory Functions
The MEMory commands control the configuration of the automated Voltage-Proportional-to-Frequency
(V
PROP
F or VF), sensor Cal Factor correction, and the analog outputs on the rear panel. Each of these
connectors is used with external devices. The V
PROP
F can be configured to match the V
PROP
F output of the
microwave source. The analog outputs are used with a variety of devices including chart recorders,
oscilloscopes, voltmeters and microwave source leveling inputs.