The Spectrum Application (RF Measurements)
R&S
®
FPL1000
389
User Manual 1178.3370.02 ─ 11
The marker is positioned on the trace maximum.
6. Set the measured signal frequency and the measured level as reference values:
a) Press the [MKR FUNC] key
b) Press the "Reference Fixed" softkey.
The position of the marker becomes the reference point. The reference point level
is indicated by a horizontal line, the reference point frequency with a vertical line.
At the same time, the delta marker 2 is switched on.
Figure 6-51: Fundamental wave and the frequency and level reference point
7. Make the step size for the center frequency correspond to the signal frequency: in
the "Frequency" configuration dialog box, select "Center Frequency Stepsize" =
"Marker".
The step size for the center frequency is now equal to the marker frequency.
8. Move the center frequency to the 2
nd
harmonic of the signal by pressing the [UP]
( ) key.
The center frequency is set to the 2
nd
harmonic.
9. Select "Auto Level" to ensure the R&S
FPL1000 measures the harmonics with a
high sensitivity.
10. Place the delta marker on the 2
nd
harmonic: in the "Marker To" menu, select the
"Peak" softkey.
The delta marker moves to the maximum of the 2
nd
harmonic. The displayed level
result is relative to the reference point level (= fundamental wave level).
The other harmonics are measured by repeating steps
, with the cen-
ter frequency being incremented or decremented in steps of 128
MHz using the [UP] or
[DOWN] keys.
Marker Usage
