Basic Measurement Examples
R&S
®
FSVA/FSV
105
Quick Start Guide 1321.3066.02 ─ 06
Measuring the Suppression of the First and Second Harmonic of an Input Signal
1. Set the signal analyzer to the default state by pressing the PRESET key.
The R&S
FSVA/FSV is in the default state.
2. Set the start frequency to 100 MHz and the stop frequency to 400 MHz.
a) Press the FREQ key.
b) Press the "Start" softkey and enter
100 MHz
.
c) Press the "Stop" softkey and enter
400 MHz
.
The R&S
FSVA/FSV displays the fundamental and the first and second
harmonics of the input signal.
3. To average (smooth) the noise, reduce the video bandwidth.
a) Press the BW key.
b) Press the "Video BW Manual" softkey and enter
100 kHz
.
4. Set the attenuation to 0 dB.
a) Press the AMPT key.
b) Press the "RF Atten Manual" softkey.
c) Enter
0 dB
in the edit dialog box.
5. Activate the marker by pressing the MKR key.
"Marker 1" is activated and positioned to the signal maximum (fundamental at
128 MHz). The level and frequency of the marker is displayed in the marker
field.
6. Activate the delta marker and measure the harmonic suppression.
a) In the "MKR" menu, press the "Marker 2" softkey.
"Marker 2" is activated as a delta marker ("D2 [1]"). It is automatically set
on the largest harmonic of the signal. The frequency offset and level offset
from marker 1 are displayed in the channel information bar.
b) In the "MKR" menu, press the "Marker 3" softkey.
"Marker 3" is activated as a delta marker ("D3 [1]"). It is automatically set
on the next largest harmonic of the signal. The frequency offset and level
offset from marker 1 on the fundamental are displayed in the channel infor-
mation bar (see
Measuring Harmonics of Sinusoidal Signals
