R&S FSMR, Руководство по эксплуатации

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MEAS - Analyzer R&S FSMR
1166.3363.12 4.16-10 E-2
CP/ACP
STANDARD
The CP / ACP STANDARD softkey opens a table for the selection of the settings
according to predefined standards. The test parameters for the channel and
adjacent-channel measurements are set according to the mobile radio standard.
The selection of the standard influences the following parameters:
•
channel spacing and adjacent-channel spacing
•
channel bandwidth, adjacent-channel bandwidth, and type of filtering
•
resolution bandwidth
•
video bandwidth
•
detector
•
# of adjacent channels
FAST ACP is not available if a WLAN standard or the WiMAX or WiBro
standard is selected. Trace mathematics and trace averaging are switched off.
The reference level is not influenced by the selection of a standard.
To achieve an optimum dynamic range, the reference level has to be set in a
way that places the signal maximum close to the reference level without forcing
an overload message. The default setting is CP/
ACP STANDARD NONE .
For the R&S FSMR, the channel spacing is defined as the distance between the center
frequency of the adjacent channel and the center frequency of the transmission channel.
The definition of the adjacent-channel spacing in standards IS95 B and C, IS97 B and C
and IS98 B and C is different. These standards define the adjacent-channel spacing from
the center of the transmission channel to the closest border of the adjacent channel. This
definition is also used for the R&S FSMR when the following standard settings are
selected:
•
CDMA IS95 Class 0 FWD
•
CDMA IS95 Class 0 REV
•
CDMA IS95 Class 1 FWD
•
CDMA IS95 Class 1 REV
•
FAST ACP is not available if a WiMax or WiBro standard is selected.
IEC/IEEE-bus command:
CALC:MARK:FUNC:POW:PRES <standard>