Boonton 4530 Peak Power Meter User Manual - Manual (Page 54)

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Chapter 3 Boonton Electronics
Operation 4530 Series RF Power Meter
Main Menu > Trig/Time > Trig Pos
Selects the position of the trigger event on displayed sweep. The following descriptions assume zero trigger
delay. If trigger delay is positive, the trigger position will move further to the left (less pre-trigger and more
post-trigger information is shown. Negative trigger delay has the opposite effect.
Left The trigger location will be at the left edge of the display, and the entire trace will
be post-trigger.
Middle The trigger location will be at the center of the display. The left portion of the trace
will be pre-trigger, and the right portion will be post-trigger. (Default)
Right The trigger location will be at the right edge of the display, and the entire trace will
be pre-trigger.
Remote Command: TRIGger:POSition <LEFT, MIDDLE, RIGHT>
Main Menu > Trig/Time > TrigDelay
Sets the trigger delay time with respect to the trigger. Positive values cause the actual trigger to occur after the
trigger condition is met. This places the trigger event to the left of the trigger point on the display, and is
useful for viewing events during a pulse, some fixed delay time after the rising edge trigger. Negative trigger
delay places the trigger event to the right of the trigger point on the display, and is useful for looking at events
before the trigger edge. Due to memory limitations, positive or negative trigger delay is restricted in all
timespans, but is always at least 30 times the timespan setting, and considerably greater for some settings.
Range: -900
µs < TrigDly < 900µs for timespans 5µs and faster
-4.00ms < TrigDly < 4.00ms for timespans 10
µs to 50µs
(-80 x TimeSpan) < TrigDly < (80 x TimeSpan) for timespans 50
µs to 2ms
(-30 x TimeSpan) < TrigDly < (30 x TimeSpan) for timespans 5ms and slower
Default: 0.0 seconds
Remote Command: DISPlay:DELay <n>
Main Menu > Trig/Time > TrigLevel
Sets the trigger threshold signal level for synchronizing data acquisition with the a pulsed input signal or
external trigger pulses. If there is an global offset applied to the channel, the trigger level should be entered
in offset units. For internal trigger, the trigger level is always set/returned in dBm, and for external trigger, the
units are volts. Note that there is a small amount of hysteresis built in to the trigger system, and the signal
should have at least one dB greater swing than the trigger level setting, and somewhat more at low levels.
Note that setting a trigger level when Trigger Mode is set to PkToPk will force the trigger mode back to Auto.
Range: [-40.0 to +20.0] + Offset (dBm) (Trigger Source = Sensor)
-5.0 to +5.0 (Trigger Source = External)
Default: -3.0 dBm (Sensor), 0 Volts (External)
Remote Command: TRIGger:LEVel <n>
Main Menu > Trig/Time > TrigSlope
Sets the slope or polarity for the active trigger edge.
Pos (+) Triggers will be generated when a signal’s rising edge crosses the trigger level
threshold. (Default)
Neg (-) Triggers will be generated when a signal’s falling edge crosses the trigger level
threshold.
Remote Command: TRIGger:SLOPe <POS, NEG>