Rohde & Schwarz CMU-K20, Operating Manual

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CMU-K20/21/22/23/24 Signalling: Receiver Quality
1115.6088.12 6.157 E-12
Reference Level, Multislot
CONFigure:RXQuality:BER<nr>:CONTrol[:CSWitched][:TCH]:MSLot:RLEVel <Level>
CONFigure:RXQuality:BER<nr>:CONTrol:PDATa:[:TCH]:MSLot:RLEVel <Level>
<Level> Description of parameters Def. value Def. unit FW vers.
–
137 dBm to –27 dBm
–137 dBm to –10 dBm
–90 dBm to +13 dBm
Reference level for RF1
Reference level for RF2
Reference level for RF3 OUT See below
See below
–90 dBm
dBm
dBm V3.05
Description of command
This command defines the reference value for the individual downlink (BS) TCH signal levels used for the
multislot BER test on circuit switched channels. See command
CONFigure:RXQuality:BER<nr>:CONTrol[:CSWitched][:TCH]:MSLot:LEVel:INDividual
on p.
6.157 and the corresponding packet data command.
The default setting depends on the test setup (all level values in dB):
<nr> 1 2 3 4 5 6 7 8 9 10
Level –102.0 –104.0 –102.0 –104.0 –100.0 –100.0 –100.0 –102.0 –102.0 –102.0
Slot Configuration: Individual (Multislot)
CONFigure:RXQuality:BER<nr>:CONTrol[:CSWitched][:TCH]:MSLot:LEVel:INDividual
CONFigure:RXQuality:BER<nr>:CONTrol:PDATa[:TCH]:MSLot:LEVel:INDividual
<Level_0>, ..., <Level_7>
<Level_n> Description of parameters Def. value Def. unit FW vers.
–127 dB to +127 dB Power of CMU in timeslot no. n 0 dB V3.05
Description of command
This command defines the levels in all 8 timeslots of the downlink (BS) TCH signal relative to the Reference
Level set via
CONFigure:RXQuality:BER<nr>:CONTrol[:CSWitched][:TCH]:MSLot:RLEVel
(see p.
6.157 ) and the corresponding packet data command. The levels are valid for BER tests if the MS is set to
multislot operation.
The level range quoted above is restricted by the condition that the absolute level (calculated from the reference
level and the relative individual levels) must not exceed the level ranges of the RF connectors.
Example: With output connector RF2 and a default used timeslot level of –102 dBm, the individual levels can
be set in the range –35 dB to +92 dB, corresponding to absolute levels of –137 dBm to –10 dBm.
The PDATa command refers to packet-switched data traffic channels and requires option CMU-K42.
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