180 Chapter 2 
Front-Panel Key Reference
Single
Single 
When analyzer is in continuous sweep mode and not in a measurement 
(
Measure, Meas Off), this key changes the sweep control to single sweep 
and executes a sweep after the trigger condition is met. If the analyzer 
is already in single sweep, pressing 
Single executes a new sweep after 
the trigger condition is met.
When analyzer is in continuous sweep mode and also in a measurement 
(selected under the 
Measure key), this key changes the measurement 
control to take a single measurement and executes a single 
measurement after the trigger condition is met. If the analyzer is 
already in single sweep, pressing 
Single executes a new measurement 
after the trigger condition is met.
If Average is on (
BW/Avg, Average (On)), pressing Single resets the 
average trace and starts the average again from a count of zero. Sweeps 
are averaged until N sweeps are then taken (where N is the average 
number), and then the sweep is halted.