R&S FSMR, Руководство по эксплуатации

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R&S FSMR SENSe:LIST Subsystem
1313.9723.12 6.1-171 E-1
<ref level>: Reference level
Range of values: +30 dBm to -70 dBm in 10 dB steps
+30 dBm to -75 dBm in 5 dB steps with
El. Attenuator option B25
Range of values: 0 dB to 70 dB in 10 dB steps
0 dB to 75 dB in 5 dB steps with
El. Attenuator Option
B25
<el att>: RF input attenuation of electronic attenuator
Range of values: 0 dB to 30 dB in 10 dB steps
OFF electronic attenuator
not in signal path
If option B25 is missing, OFF is to be used.
<filter type>: NORMal: normal resolution filter
CFILter: channel filter. These are especially steep-edged
filters, which are used for example in Fast ACP
measurement to ensure the band-limiting of a
transmission channel in the time domain.
RRC: Root Raised Cosine filter. This special filter form
is used to determine the channel power for some
mobile radio standards.
<rbw>: Resolution bandwidth
Range of values: 10 Hz to 10 MHz in 1, 3, 10 steps and
50 MHz (R&S FSMR43: 10Hz to 10MHz)
for <filter type> = NORMal.
<vbw>: Video bandwidth
Range of values: 1 Hz to 10 MHz in 1, 2, 3, 5, 10 steps.
(30 MHZ for RBW > 10 MHz, not R&S FSMR)
The value is ignored for
<filter type> =
CFILter or RRC
<meas time>: Measurement time
Range of values: 1us to 30s
<trigger level>: Reserved. Must be set to 0.
Returned values:
The query command returns a list of comma-separated values (CSV) which contains the power
measurement results in floating-point format. The unit depends on the setting with
CALC:UNIT.
Command
"SENSe:LIST:POWer? 935.2MHz,-20dBm,10dB,OFF,NORM,1MHz,3MHz,434us,0,
935.4MHz,-20dBm,10dB,10dB,NORM,30kHz,100kHz,434us,0,
935.6MHz,-20dBm,10dB,20dB,NORM,30kHz,100kHz,434us,0"
thus returns the following list, for example:
-28.3,-30.6,-38.1
If the command sequence is extended to
"SENSe:LIST:POWer:SET ON,ON,ON,IMM,POS,0,0"
"SENSe:LIST:POWer?
935.2MHz,-20dBm,10dB,OFF,NORM,1MHz,3MHz,434us,0,
935.4MHz,-20dBm,10dB,10dB,NORM,30kHz,100kHz,434us,0,
935.6MHz,-20dBm,10dB,20dB,NORM,30kHz,100kHz,434us,0"
the result list is extended to 3 results per frequency point (peak, RMS and average):
-28.3, -29.6, 1.5, -30.6, -31.9, 0.9, -38.1, -40.0, 2.3