Using The - Agilent Technologies 8719D User Manual

Using the AREF=AFIXED MHR Key to Activate a F'ixed Reference Marker
1. To set the frequency value of a hxed marker that appears on the analyzer display, press:
(Marker_) AMODE MENU AREF=AFIXED MKR AMODE MENU FIXED MKR POSITION
FIXED STIMULUS and turn the front panel knob or enter a value from the front panel
keypad.
The marker is shown on the display as a small delta (A), smaller than the inactive marker
triangles.
2. To set the response value (dB) of a fixed marker, press:
FIXED MKR VALUE and turn the front panel knob or enter a value from the front panel
keypad.
In a Cartesian format, the setting is the y-axis value. In polar or Smith chart format, with a
magnitude/phase marker, a real/imaginary marker, an R + jX marker, or a G + jB marker, the
setting applies to the first part of the complex data pair. (Fixed marker response values are
always uncoupled in the two channels.)
3. To set the auxiliary response value of a fixed marker when you are viewing a polar or Smith
format, press:
FIXED MKR !UX VALUE and turn the front panel knob or enter a value from the front panel
keypad.
This value is the second part of complex data pair, and applies to a magnitude/phase marker,
a real/iaginary marker, an R+ jX marker, or a G+jB marker. (Fixed marker auxiliary
response values are always uncoupled in the two channels.)
Example of a Fixed Reference Marker Using &REF~AFXXED MKR
Figure 2-13.
Making Measurements 2-21