Rohde & Schwarz FSV3000, Руководство пользователя

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Measurements and results
R&S
®
FSVA3000/ R&S
®
FSV3000
217 User Manual 1178.8520.02 ─ 08
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 337).
Remote command:
CALCulate<n>:MARKer<m>:FUNCtion:POWer<sb>:SELect
on page 864
CALCulate<n>:MARKer<m>:FUNCtion:POWer<sb>:RESult?
on page 862
CALCulate<n>:MARKer<m>:FUNCtion:POWer<sb>[:STATe]
on page 865
Channel Bandwidth
Defines the channel bandwidth.
The default setting is 14 kHz.
Remote command:
[SENSe:]POWer:ACHannel:BANDwidth[:CHANnel<ch>]
on page 869
Adjust Settings
Enables the RMS detector and adjusts the span to the selected channel bandwidth
according to:
"4 x channel ban measurement margin"
The adjustment is performed once; if necessary, the setting can be changed later on.
Remote command:
[SENSe:]POWer:ACHannel:PRESet
on page 865
5.4.4 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 924.
1. Press the "C/N", "C/N0" softkey to configure the carrier-to-noise ratio measure-
ment.
2. To change the channel bandwidth to be analyzed, press the "Channel Bandwidth"
softkey.
3. To optimize the settings for the selected channel configuration, press the "Adjust
Settings" softkey.
4. To activate the measurements without reference to the bandwidth, press the "C/N"
softkey.
To activate the measurements with reference to the bandwidth, press the "C/N
0
"
softkey .
Carrier-to-noise measurements