Procedures Profile Operation Mode
ML2437A/38A OM/PM PN: 10585-00001 Rev. P 6-11
2. Connect sensor A to the signal source.
3. Select SYSTEM > SETUP and press MODE to select PROFILE.
4. Press CLR or any other menu key to return to the display screen. The display now
shows a power profile of sensor A on channel 1.
5. Press SYSTEM > CONTROL to get access to the cursor. Press << and >> to move the
selected cursor, and SWAP to select the other cursor.
Scaling
In the example above, if the measured power signal is not visible because the power is too
high or low, the scaling can be altered as follows:
1. Press SYSTEM > CONTROL > more > SCALE. There are now soft keys for TOP and
BOTTOM dB levels, referring to the top and bottom of the screen, and AUTO SCALE,
which will optimize the displayed graph.
2. Enter new values so that the measured power signal is visible. The TOP value must
always be higher than the BOTTOM value.
3. When finished, press another soft key or CLR to return to the display.
Cursor Readout
To display the CURSOR READOUT box on the screen, press SYSTEM > CONTROL > more >
READOUT. This is a toggle action and will display or remove the cursor data readout box
from the display.
The readout shows a digital representation of data at the two cursor positions on the
currently displayed channel, along with the differences in power (D p) and time (D t). The
value of D p represents the selected cursor reading minus the other cursor reading, and D t
represents the time difference between the two cursors. If SENSOR > AVERAGING >
between CURSOR averaging is on, the average reading between the cursors is displayed at
the bottom of the readout.
To link the cursors, select SYSTEM > CONTROL > more > more > LINK CURSR. When the
cursors are linked, a line is drawn on the display connecting the two cursors and they will
move together as one. This is discussed more fully in the Triggered Measurements section
below.
Note
With a CONTINUOUS trigger such as this, there will most likely not be specific
points of interest, so the movement of the cursors is rather arbitrary.
If modulation is applied to the signal, or its power level altered, the signal should
change on the display. The signal may not be visible if it is not in the default range
which covers +20 to –50 dBm.
Note
If continuous trigger is selected, or the display is changing while trying to read the
readout, select TRIGGER > MANUAL to stop the display update. The readouts are
updated whenever the signal trace is updated, or if the cursors are moved. It is
possible to link the movement of the cursors so they move at the same time. This
is useful if measurements need to be taken at specific times between the cursors,
as with channelled signals.
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