Setting The Cw Frequency - Agilent Technologies 8753ET User Manual

Making Measurements
Using Markers
Setting the Electrical Delay
This feature adds phase delay to a variation in phase versus frequency, therefore it is only
applicable for ratioed inputs.
1. Press
Format PHASE
2. Press
Marker Fctn
keypad to position the marker at a point of interest.
3. Press
MARKER→DELAY
receiver input to compensate for the phase slope at the active marker position. This
effectively flattens the phase trace around the active marker. You can use this to
measure the electrical length or deviation from linear phase.
Additional electrical delay adjustments are required on devices without constant group
delay over the measured frequency span.
Figure 1-27 Example of Setting the Electrical Delay Using a Marker

Setting the CW Frequency

1. To place a marker at the desired CW frequency, press:
and either turn the front panel knob or enter the value, followed by a unit
Marker
terminator.
2. Press
Seq SPECIAL FUNCTIONS
You can use this function to set the marker to a gain peak in an amplifier. After
pressing
MKR→CW FREQ
compression with increasing input power.
1-38
.
and turn the front panel knob, or enter a value from the front panel
to automatically add or subtract enough line length to the
MKR→CW
, activate a CW frequency power sweep to look at the gain
.