Keysight Technologies N5171B EXG, User Manual

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214 Keysight EXG and MXG X-Series Signal Generators User’s Guide
Basic Digital Operation (Option 653/655/656/657)
Using Waveform Markers
Using the RF Blanking Marker Function
While you can set a marker function (described as Marker Routing on the softkey label in the
Marker Utilities menu) either before or after setting the marker points ( page 210 ), setting a marker
function before you set marker points may change the RF output. RF Blanking includes ALC hold
(described on page 205 , note Caution regarding unleveled power). The signal generator blanks the
RF output when the marker signal goes low. This example is a continuation of the previous example,
Viewing a Marker Pulse.
1. Using the factory–supplied segment
SINE_TEST_WFM
, set Marker 1 across points 1 − 180
( page 210 ).
2. From the Marker Routing softkey menu, assign RF Blanking to Marker 1:
In the second Arb menu ( page 208 ), press Marker Utilities > Marker Routing > Pulse/RF
Blank > Marker 1 .
Marker Polarity = Positive
When marker polarity is positive (the default
setting), the RF output is blanked during the
off
marker points.
200 180 Point 1
Marker
Segment
RF Signal
200 180 Point 1
Marker
Segment
Marker Polarity = Negative
When marker polarity is negative, the
RF output is blanked during the
on marker
points
≈
3.3V
0V
≈
3.3V
0V
RF Signal
RF Signal
RF Signal