Rohde & Schwarz CMU-K20, Руководство по эксплуатации

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CMU-K20/K21/K22/K23/K24
Connection Control (Non Signalling only)
1115.6088.12 6.5 E-12
SOURce:RFGenerator:LEVel:UTIMeslot <Level> RF Level used
<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
RF1 level in used timeslot
RF2 level in used timeslot
RF 3 OUT level in used timeslot –27
–27
–27 dBm
dBm
dBm V1.15
Description of command
This command determines the RF generator level in the used timeslot. The value range depends on the used RF
output of the CMU and the external attenuation set (see
[SENSe:]CORRection:LOSS:OUTPut<nr>[:MAGNitude]
command).
The level ranges and defaults are valid for GMSK-modulated generator signals. With 8PSK modulation, all level
ranges are shifted by –4.0 dB and the default level for RF1 is changed to –31 dBm.
SOURce:RFGenerator:LEVel:UNTimeslot < Level > RF Level unused
<Level> Description of parameters Def. value Def. unit FW vers.
–110 dB to +0 dB
–110 dB to +17 dB
–63 dB to +40 dB Level in unused timeslots, RF 1
Level in unused timeslots, RF 2
Level in unused timeslots, RF 3 OUT –80
–80
–80 dB
dB
dB V1.15
Description of command
This command determines the RF generator level in the unused timeslots relative to the level in the used time-
slot.
The absolute level in the unused timeslots, i.e. the sum of numerical values set under UTIMeslot and UNTimeslot
must also lie within the range for the RF output. This condition further restricts the permissible maximum level for
the unused timeslots.
RF Generator Frequency – Subsystem RFGenerator:FREQuency
The subsystem RFGenerator:FREQuency determines the frequency of the generated RF signals. It
corresponds to the softkeys RF Channel and Freq. Offset in the Generator tab in the popup menu Con-
nect. Control .
SOURce:RFGenerator:FM:DEViation < FrequencyOffset > Frequency Offset
<FrequencyOffset>> Description of parameters Def. value Def. unit FW vers.
–100 kHz to +100 kHz
Frequency offset 0 kHz V1.15
Description of command
This command determines a frequency offset for the CMU signals in the selected RF channel (with respect to the
frequency specified in the GSM standard).
深圳德标仪器
135-1095-0799