
94 Chapter 3
Basic Digital Operation
Using Waveform Markers
Setting the Marker Polarity
1. Press the Marker Polarity softkey.
Notice that you can individually select the marker polarity for each marker number.
2. Press the
Marker 1 Polarity Neg Pos softkey until Neg is highlighted.
Using the Marker Functions: RF Blanking, ALC Hold, and Alternate
Amplitude.
You have the option of having markers initiate functions (shown as Marker Routing on the ESG
softkey label). A single marker can be set to trigger one or all three, or a different marker can
be used to trigger each one. When using the alternate amplitude function, you must configure
the alternate amplitude feature located in the
Amplitude hardkey menu. For more information
on marker functions, see “Waveform Markers” on page 87.
You can set the marker function either prior to setting the marker points or after setting the
marker points. This procedure will guide you through the marker routing (function) menus.
1. Press the
Marker Routing softkey.
Notice that you have a selection of three different marker functions showing.
2. Press the
Pulse/RF Blanking softkey.
From here you can select one of the markers to trigger RF blanking or you can select none,
the factory default setting.
3. Press the
Marker 1 softkey.
4. Press the
ALC Hold softkey.
Here again you have your choice of markers for triggering the ALC hold function. The ALC
hold marker function holds the ALC modulator at the level of the sample point(s) where
the marker signal occurs. The hold function is turned off when the marker signal goes
high. The ALC hold should only be used for short periods of time of less than 100 ms.
Extended periods of using the ALC hold feature may affect the waveform’s output
amplitude.
5. Press
Marker 2 > Alternate Amplitude.
Once again you have your choice of makers as to which one will trigger the alternate
amplitude function.
6. Press the
Return hardkey or the None softkey to return to the marker routing (function)
selection menu.
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