PeakTech 4105 Bedienungsanleitung Seite 111

5.10.8 Sweep Trigger Source
Press 〖Trig Imm/Ext〗softkey. When the Immediate (Internal) source is selected, the waveform
generator outputs a continuous sweep at a rate determined by the total of the hold time, sweep time
and return time.
When the External source is selected, the waveform generator outputs one sweep each time you
press 〖Manual Trig〗 softkey. Or the waveform generator initiates one sweep each time
input TTL level trigger signal from Trig In connector on the rear panel. The trigger period must be
greater than the total of the hold time, sweep time and return time.
5.11 List Sweep
You must enable list before setting up any of the other list parameters. Press 【Sweep】key, then
〖List Sweep〗soft key to begin setting up a list.
5.11.1 Set Sweep Signal
In the frequency list mode, the function generator "steps" through the frequencies contained in a list,
dwelling on each frequency for a specified period. The waveform generator can produce a frequency
list sweep for most waveforms mentioned above, but some waveforms are not available.
In some occasion, a frequency list with arbitrary regularity or without any regularity need to be output,
and dwell time on each frequency point can be set, then frequency list sweep will be used.
5.11.2 Frequency List
The length of frequency list can store 600 frequency values with list number 00 to 599. Press 〖List
Number〗 softkey and set the desired list number. Then, 〖List Freq〗 will be automatically selected and
set the frequency value according to selected list number. Press 〖Next〗softkey can add 1 on list
number and set the following frequency value. Using this method to create or modify a frequency list.
The store and recall of the frequency list are processing with store and recall of instrument state at
the same time, which will be introduced in detail in 'common operation'.
110