q
VBW Auto — Sets the video bandwidth so that it is automatically cou
-
pled to the RBW.
q
VBW Manual — Sets the video bandwidth manually, independent of
the RBW, from 3 Hz to 1 MHz.
q
Back — Returns to the previous menu level.
q
Detection — Detection brings up a group of choices that change how the
instrument deals with the multiple RF measurements that are made for
each display point.
q
Positive Peak — Positive Peak displays the largest signal in each dis
-
play point.
q
RMS Average — RMS Average causes the instrument to calculate the
RMS average of all measurements done for each display point and
display that average.
q
Negative Peak — Negative Peak displays the smallest value for each
display point.
q
Sampling Mode — Sampling Mode displays a single frequency point
for each display point. This is the fastest mode, but may miss display
-
ing narrow signals.
q
Back — Returns to the previous menu level.
q
Volume — Select the Volume soft key to adjust the sound level of the au-
dible signal strength indicator using the Up/Down arrow key. The current
volume setting is shown in the lower measurement block.
MARKER
Pressing MARKER on the data keypad activates a menu for the six different
markers. Use the corresponding soft key to select the desired marker. Then use
the marker second level menu to turn the markers on or off, and to edit marker
parameters and values.
NOTE: Markers are only available in IA-Spectrum mode.
q
M1 — Selects the M1 marker parameter and opens the Markers second level
menu with M1 highlighted.
q
On/Off — Turns the selected marker on or off.
q
Edit — Opens the selected marker parameter for data entry. Enter the de
-
sired marker frequency using the keypad or Up/Down arrow key. Select
the
GHz, MHz, kHz,orHz soft key to accept the marker frequency input.
q
Delta (Mx-M1) — Displays delta frequency and amplitude for the selected
marker Mx (M2, M3 or M4) with respect to the M1 marker.
q
Marker To Peak — Places the selected marker at the maximum amplitude
of a trace (M1 - M4 only).
q
Marker Freq To Center — Makes the center frequency equal to the fre
-
quency of the selected marker.
q
Back — Returns to the previous menu level.
NOTE: The markers second-level menu above is identical for markers M2-M4.
q
M2 — Selects the M2 marker parameter and opens the Markers second level
menu with M2 highlighted.
2-50
Chapter 2 Functions and Operations
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