Brochure

10
AM/FM analysis
The R&S®FPHK7 option converts the R&S®Spectrum Rider
FPH into an analog modulation analyzer to measure the
quality of amplitude or frequencymodulated signals. The
analog modulation display shows the waveform as well as
measurement parameters such as carrier power, carrier
offset, modulation index (depth) for AM signals, frequency
deviation for FM signals, SINAD, THD, etc. The modulation
summary display provides userdefinable limits for each
measurement.
Interference analysis and signal strength mapping
The R&S®FPHK15 interference analysis and R&S®FPHK16
signal strength mapping options are great tools for analyz-
ing and locating ambiguous signals or interferers. When
analyzing, longtime spectrogram recording allows up to
999 hours of onair activity to be captured; the recording
duration depends on the recording interval setting. The
recorded data can be analyzed on the device or with the
Analysis of a frequencymodulated signal with the R&S®FPHK7 AM/FM analysis option
Locating a signal with the R&S®FPHK15 interference analysis option
R&S®Instrument View software. The signal strength map-
ping displays a pictorial view of the signal power level on
an indoor or outdoor map. The color indicator provides a
good estimation of the signal coverage in a particular area
or where the interferer or intended signal is most likely
located.
Receiver mode
The R&S®FPHK43 receiver mode option allows EMI
diagnostics with weighted detectors such as the quasi
peak detector. Measurements are performed at a
predefined frequency for an adjustable measurement time.