Marker Operation - HP 8360 L Series User Manual

Caution
1-14 Getting Started Basic
The swept CW generator has five frequency markers that can be used
as fixed frequency "landmarks," or as variable frequency pointers
on a CRT display. To view the marker features of the swept CW
generator on a CRT, connect the swept CW generator as shown in
Figure l-8.
Refer to menu map 3, MARKER.
Press [m).
Press (START) @ (GHzl.
Press ISTOP) @ (GHz).
Press [MARKER).
Select Marker Ml and enter @ LGHz).
The swept CW generator is sweeping from 3 to 7 GHz, with a 100 ms
sweep speed. A frequency marker is set at 4 GHz, which causes an
intensified dot to appear on the CRT. To obtain an amplitude spike
at that frequency, select Amp1 Markers . Notice that you can set the
amplitude of the spike with the rotary knob or entry keys. To return
to the intensified dot representation, select Amp1 Markers (asterisk
off).
Amplitude markers increase the output power at the marker
frequency. Provide protection to devices that could be damaged.
For a second marker, select Marker M2 and enter @ 0 @ (GHz).
This process can be continued for all five markers. Note that the
marker displayed in the active entry area is "active" and can be
controlled by the rotary knob, arrow keys, and numeric entry keys.
Once the Ml and M2 markers are established, the marker sweep
function, softkey Ml--M2 Sweep, temporarily changes the original
start/stop frequencies to those of markers Ml and M2. Select
Ml--M2 Sweep. Notice that the swept CW generator now is
sweeping from 4 to 5.5 GHz. Use this function to focus in on a
selected portion of the frequency sweep. Select Ml--M2 Sweep again.
This turns the function off and returns the swept CW generator to
its original sweep parameters. To change the start/stop frequencies
for the swept CW generator, not just temporarily, use the softkey
Start=Ml Stop=M2.
As an example of the delta marker function:
Select Marker M3 and enter @ 0 am.
Select Delta Marker.
The frequency difference between marker 3 and marker 1 is displayed,
and the CRT trace is intensified between the two markers. The active
entry area displays: