Getting Started
R&S
®
Spectrum Rider FPH
75
User Manual 1321.1011.02 ─ 06.00
3.3.1.2
Using the Preamplifier
The R&S Spectrum Rider has an optional preamplifier (R&S FPH-B22, order number
1321.0680.02) to increase sensitivity. Depending on the frequency, the gain of the
amplifier is in the range from 15 dB to 20 dB and increases the sensitivity by 10 dB to
15 dB.
In the signal path, the preamplifier comes after the input protection circuit and before
the RF attenuator of the R&S Spectrum Rider to provide excellent sensitivity when the
preamplifier is switched on.
1. Press the [AMPT] key.
2. Select the "Att/Amp/Imp" softkey.
3. Enable or disable the "Preamp" checkbox to turn on or off the preamplifier of the
R&S Spectrum Rider.
The magnitude of amplification depends on the reference level. This coupling to the
reference level makes sure that the dynamic range is at an optimum.
3.3.1.3
Measuring CW Signals
A basic task for spectrum analyzers is to measure the level and frequency of sinewave
signals. The following examples illustrate an effective way of performing these mea-
surements.
A signal generator, e.g. R&S SMBV provides the signal source.
Test setup
Connect the RF output of the signal generator to the RF input of the R&S Spectrum
Rider.
Trying Out the Instrument
