100
Figure 4- 123 Set frequency sweep time
4.2.5
Select Trigger Source
The signal generator generates frequency sweep output upon receiving a trigger signal and then waits for the next trigger
signal. The trigger source of frequency sweep can be internal, external or manual. To change it, you can use the
multi-functional control and direction keys on the interface for selecting frequency sweep mode or press the soft function
key Source.
Figure 4- 124 Select trigger source
When using an internal trigger, the waveform generator will output a continuous frequency sweep, the rate of which is
determined by frequency sweep time.
When using an external trigger, the waveform generator will accept a hardware trigger that has been connected to the
external digital modulation interface (FSK Trig connector) on the back panel. The waveform generator will start a
frequency sweep upon receiving a TTL pulse with designated polarity.
