Rohde & Schwarz FSV3000, Руководство пользователя

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Common analysis and display functions
R&S
®
FSVA3000/ R&S
®
FSV3000
544 User Manual 1178.8520.02 ─ 08
You can move the position of the fixed reference marker graphically by dragging the
display lines, or numerically by entering values for the marker position and level.
Remote commands:
"Example: using a fixed reference marker" on page 1224
CALCulate<n>:DELTamarker<m>:FUNCtion:FIXed[:STATe]
on page 1201
CALCulate<n>:DELTamarker<m>:FUNCtion:FIXed:RPOint:X
on page 1200
CALCulate<n>:DELTamarker<m>:FUNCtion:FIXed:RPOint:Y
on page 1201
7.3.4.6 Measuring the power in a channel (band power marker)
Access : "Overview" > "Analysis" > "Marker Functions" > "Band Power" > "Band Power
Config"
or : [MKR FUNC] > "Select Marker Function" > "Band Power"
To determine the noise power in a transmission channel, you can use a noise marker
and multiply the result with the channel bandwidth. However, the results are only accu-
rate for flat noise.
Band power markers allow you to measure the integrated power for a defined span
(band) around a marker (similar to ACP measurements). By default, 5 % of the current
span is used. The span is indicated by limit lines in the diagram. You can easily change
the span by moving the limit lines in the diagram. They are automatically aligned sym-
metrically to the marker frequency. They are also moved automatically if you move the
marker on the screen.
The results can be displayed either as a power (dBm) or density (dBm/Hz) value and
are indicated in the "marker table" for each band power marker.
Marker usage