Common measurement settings
R&S
®
FSVA3000/ R&S
®
FSV3000
491
User Manual 1178.8520.02 ─ 08
3. Determine the parameters you want to use to define the trigger and gate conditions
from the preview diagram, for example:
● the length of a burst or slot
● the upper or lower power level of a pulse
● the maximum noise level
● the power level or time at which a certain incident occurs
4. Try out different trigger and gate settings as described in
How to configure a gated measurement
"Update Main Diagram" to see the effect of the current settings on the main mea-
surement in the background.
5. If the results are as expected, close the dialog box to keep the changes perma-
nently. Otherwise, correct the settings as necessary.
6.6.1.4
How to configure a triggered measurement
To define a time trigger:
1. In the "Trigger And Gate" dialog box, define the "Trigger Source" = "Time".
2. Define the "Repetition Interval": the time after which a new measurement is started.
To define an external trigger:
1. Connect an external device that will provide the trigger signal to one of the Trigger
Input / Output connectors on the R&S
FSV/A.
For details see the R&S
FSV/A "Getting Started" manual.
2. In the "Trigger And Gate" dialog box, define the "Trigger Source" = "External".
3. If you are using the variable Trigger 2 Input / Output connector, you must define its
use as an input connector. In the "Trigger In/Out" tab of the "Trigger And Gate" dia-
log box, set the corresponding trigger to "Input".
(Note: Trigger 2 is on the front panel, Trigger 3 is on the rear panel.)
4. Configure the external trigger as described for the other power triggers.
To define a power trigger:
1. In the "Trigger And Gate" dialog box, define the "Trigger Source" = "IF Power".
Alternatively, define "Trigger Source" = "Video". The video signal corresponds to
the envelope of the IF signal: it has been processed by the resolution and video
filters and the selected detector.
2. Define the "Trigger Level": the power level at which the measurement will start.
For a "Video" trigger source you can move the level line graphically to define the
level. If you define the value numerically, you must enter a percentage of the full
diagram height as the level.
Trigger and gate configuration
