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11 Occupied Bandwidth Measurement
Source
Bus
Sets the trigger input for the current step to Bus. Any step in the sequence set to Bus will cause the
sequence execution to stop until the Bus Trigger SCPI command is sent. Pressing the manual trigger key
has no effect. At any point in the sequence where the list sequencer is paused waiting for a software
trigger, a pop up dialog is displayed until the trigger event occurs.
Key Path
Source, List Sequencer, List Sequencer Setup, Step Trigger
Example
:SOUR:LIST:STEP2:SET:INP:TRIG BUS
Notes
SCPI is supported after A.09.40
Initial S/W Revision
A.05.00
External 2
Sets the trigger input for the current step to External 2.
Key Path
Source, List Sequencer, List Sequencer Setup, Step Trigger
Example
:SOUR:LIST:STEP2:SET:INP:TRIG EXT2
Notes
SCPI is supported after A.09.40
Notes
Note: When on E6640A, trigger 2 is a bi-directional trigger port. So when trigger 2 has been
configured as OUTPUT type, choosing External 2 as the input trigger for the current step will
generate error.
Initial S/W Revision
A.05.00
Transition Time
Allows you to specify the transition time for the current step.
The transition time is the amount of time allowed for the source to settle at the current frequency or
amplitude value.
Transition Time should not be taken as additional time before or inside the Step Duration. You can set a
value for the settling time to allow the source output frequency or amplitude to become stable. Make sure
that during this period of time, you do not use the source output signal.
The following table lists recommended values for appropriate settling times to allow for changes within the
source.
Value Changed
Recommended Transition Time
Frequency
500 µs
Amplitude
100 µs to within 0.1 dB
20 µs to within 1.0 dB
W-CDMA & HSPA Measurement Applications Reference
1521
Summary of Contents for E6640A
Page 80: ...Table of Contents lxxx W CDMA HSPA Measurement Applications Reference ...
Page 188: ...3 Programming the Test Set Common Commands 188 W CDMA HSPA Measurement Applications Reference ...
Page 256: ...5 Mode Functions Mode Setup 256 W CDMA HSPA Measurement Applications Reference ...
Page 324: ...6 System Functions System 324 W CDMA HSPA Measurement Applications Reference ...
Page 369: ...8 Channel Power Measurement Auto Couple W CDMA HSPA Measurement Applications Reference 369 ...
Page 389: ...8 Channel Power Measurement Marker W CDMA HSPA Measurement Applications Reference 389 ...
Page 664: ...9 ACP Measurement Auto Couple 664 W CDMA HSPA Measurement Applications Reference ...
Page 669: ...9 ACP Measurement BW W CDMA HSPA Measurement Applications Reference 669 ...
Page 984: ...9 ACP Measurement View Display 984 W CDMA HSPA Measurement Applications Reference ...
Page 1001: ...10 Spectrum Emission Mask Measurement W CDMA HSPA Measurement Applications Reference 1001 ...
Page 1668: ...12 Code Domain Measurement Auto Couple 1668 W CDMA HSPA Measurement Applications Reference ...
Page 2354: ...14 QPSK EVM Measurement 2354 W CDMA HSPA Measurement Applications Reference ...
Page 2364: ...14 QPSK EVM Measurement Auto Couple 2364 W CDMA HSPA Measurement Applications Reference ...