R&S FSV3000 Series - How to Determine the Carrier-To-Noise Ratio

Measurements and Results
R&S
®
FSVA3000/ R&S
®
FSV3000
198User Manual 1178.8520.02 ─ 01
C/N
Switches the measurement of the carrier/noise ratio on or off. If no marker is active,
marker 1 is activated.
The measurement is performed on the trace that marker 1 is assigned to. To shift
marker 1 and measure another trace, use the "Marker To Trace" softkey in the
"Marker" menu (see " Assigning the Marker to a Trace " on page 432).
Remote command:
CALCulate<n>:MARKer<m>:FUNCtion:POWer<sb>:SELect on page 750
CALCulate<n>:MARKer<m>:FUNCtion:POWer<sb>:RESult? on page 749
CALCulate<n>:MARKer<m>:FUNCtion:POWer<sb>[:STATe] on page 750
C/N0
Switches the measurement of the carrier/noise ratio with reference to a 1 Hz bandwidth
on or off. If no marker is active, marker 1 is activated.
The measurement is performed on the trace that marker 1 is assigned to. To shift
marker 1 and measure another trace, use the "Marker To Trace" softkey in the
"Marker" menu (see " Assigning the Marker to a Trace " on page 432).
Remote command:
CALCulate<n>:MARKer<m>:FUNCtion:POWer<sb>:SELect on page 750
CALCulate<n>:MARKer<m>:FUNCtion:POWer<sb>:RESult? on page 749
CALCulate<n>:MARKer<m>:FUNCtion:POWer<sb>[:STATe] on page 750
Channel Bandwidth
Defines the channel bandwidth.
The default setting is 14 kHz.
Remote command:
[SENSe:]POWer:ACHannel:BANDwidth[:CHANnel<ch>] on page 755
Adjust Settings
Enables the RMS detector and adjusts the span to the selected channel bandwidth
according to:
"4 x channel bandwidth + measurement margin"
The adjustment is performed once; if necessary, the setting can be changed later on.
Remote command:
[SENSe:]POWer:ACHannel:PRESet on page 751
7.4.4 How to Determine the Carrier-to-Noise Ratio
The following step-by-step instructions demonstrate how to determine the carrier-to-
noise ratio.
For remote operation, see "Programming example: Measuring the carrier-to-noise
ratio" on page 789.
Carrier-to-Noise Measurements