If the trigger is off, the top left indicator box will display the waveform type
(SQU. WAVE). If the trigger is on, it will display the waveform type, trigger status, and
selected trigger edge, ex. (SQU. TRG Fall).
To set the frequency and PDL limit values, type the desired values in the corresponding
boxes at the bottom of the screen and either press ENTER or click outside the box whose
value has just been modified.
Ranges:
Frequency: 0.0 to 100 Hz
Max. PDL: 0.2 to 20 dB
Min. PDL:
0.1 to 19.9 dB
If the trigger is off, the waveform generation at the selected frequency will begin as soon
as the square wave mode is enabled (button will be green, as in the screenshot above).
The first transition will be from low to high PDL. Please note that the dwell time at each
state is half the period, i.e. if the set frequency is 1 Hz, the PDLE will switch states once
every 0.5s.
If the trigger is on and the frequency is set to a nonzero value, once the square mode is
enabled, the PDLE will wait for a trigger pulse and will begin generating the variation at
the selected frequency on receipt of the trigger pulse, starting with a low-to-high
transition. Each subsequent pulse will restart the variation.
If the trigger is on and the frequency is set to 0.0 Hz, the PDLE will switch once between
states each time it receives a trigger pulse. The first transition will be from low to high
PDL. Subsequently, it will toggle between states once for each trigger pulse.
Document #: GP-UM-PDLE-101-11
Page 60 of 61
Summary of Contents for PDLE-101
Page 31: ...3 Click Next 4 Click Next Document GP UM PDLE 101 11 Page 31 of 61 ...
Page 32: ...5 Check Specify a location then click Next Document GP UM PDLE 101 11 Page 32 of 61 ...
Page 36: ...12 Click Next 13 Click Finish Document GP UM PDLE 101 11 Page 36 of 61 ...
Page 38: ...In this example the USB device is connected to COM3 Document GP UM PDLE 101 11 Page 38 of 61 ...
Page 49: ... Properties on General tab Document GP UM PDLE 101 11 Page 49 of 61 ...
