Arbitrary and Function Generator
R&S AM300
E-1007.9922.12
6-150
Operating manual, 02/2005
6.2.3.2
Selecting the Trigger Mode
Note
The "Select trigger mode" setting can also be entered in the TRIG/GATE
menu ( 6-155).
Application
You can use the trigger mode function to set the trigger for the Sweep
operating mode. A number of different choices are available:
Free Run
No triggering takes place. Sweep cycles take place continuously and
their duration is defined by the sweep time.
Internal
The internal trigger generator is selected as the trigger source ( 6-160).
External
Triggering occurs with the aid of a TTL signal at the trigger input [26]. If a
TTL signal with the selected edge occurs, a sweep cycle is output at the
generator output [8, 9]. The generator then waits for another trigger
signal. Whilst the generator is waiting, the starting frequency is output.
Manual
When you press the function key "EXEC SGL SWEEP" a sweep cycle is
delivered to the output. The generator then waits for further manual
trigger pulses when the starting frequency occurs.
Setting trigger mode
1.
In the
menu
press the
function key
.
A selection field containing specified settings is displayed. The default
setting is "Free Run".
2.
Use the
rotary knob
[11] to select a setting.
3.
Press the
ENTER key
[5] to close the selection field.
The new setting is stored.
Execute once-only
sweep
In Manual sweep mode:
•
In the
menu
press the
function key
.
If the SWEEP operating mode is switched on ( 6-154), a once-only
sweep is executed. The R&S AM300 then waits for further manual trigger
pulses when the starting frequency occurs. You may repeat this
procedure as often as you wish.
Summary of Contents for AM 300
Page 2: ...02 2005 ...
