R&S FSPN - Frequency (VCO Characterization); Power; Sensitivity

Measurements and Result Displays
R&S
®
FSPN
93User Manual 1179.4363.02 ─ 01
The measurement bandwidth is displayed in the diagram area.
The y-axis shows the variance or deviation. It also has a logarithmic scale.
Remote command:
Trace data: TRACe<n>[:DATA]? on page 333
Measurement bandwidth: [SENSe:]BWIDth:MEASurement? on page 332
Frequency (VCO Characterization)
The "Frequency" result display shows the frequency characteristics of the DUT as a
function of the tuning voltage or current.
The x-axis shows the tuning characteristics of the DC source.
●
For V
supply
the tuning voltage in Volt or current in Ampere, depending on the output
type.
●
For V
tune
and V
aux
the tuning voltage in Volt.
The tuning voltages (alternatively: current) applied during the measurement depends
on the tuning range you have defined.
The y-axis shows the frequency on which the VCO operates at a given tuning voltage
or current in Hz.
Remote command:
TRACe<n>[:DATA]? on page 333
Sensitivity
The "Sensitivity" result display shows the slope of the DUT characteristics, expressed
as the frequency change between measurement points.
The x-axis shows the tuning characteristics of the DC source.
●
For V
supply
the tuning voltage in Volt or current in Ampere, depending on the output
type.
●
For V
tune
and V
aux
the tuning voltage in Volt.
The tuning voltages (alternatively: current) applied during the measurement depends
on the tuning range you have defined.
The y-axis shows the sensitivity of the VCO at a given tuning voltage or current in
Hz/V.
Remote command:
TRACe<n>[:DATA]? on page 333
Power
The "Power" result display shows the output power characteristics of the DUT as a
function of the tuning voltage or current.
The x-axis shows the tuning characteristics of the DC source.
●
For V
supply
the tuning voltage in Volt or current in Ampere, depending on the output
type.
●
For V
tune
and V
aux
the tuning voltage in Volt.
Result Displays