Rohde & Schwarz R&S FSP Series, Руководство по эксплуатации

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R&S FSP Remote Control – Description of Commands
SENSe Subsystem
6.172 Operating Manual 1164.4556.12 - 06
Parameter:
For allowed <rbw> setting for <filter type> = CFILter and <filter type> = RRC see section “Setting the
Bandwidths and Sweep Time – BW Key” - “List of Available Channel Filters” on page 4.25 .
Return value:
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.
<analyzer freq>: Receive frequency for the signal to be measured (= center frequency in manual
operation)
Range of values:
0 Hz to max. frequency, depending on the instrument
model.
<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
<rf att>: RF input attenuation
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 for <filter type> =
NORMal.
See filter table for <filter type> = CFILter and <filter
type> = RRC. For possible combinations of filter type
and filter bandwidth see table "List of available
channel filters" in chapter
“Instrument Functions” ,
section “Setting the Bandwidths and Sweep Time –
BW Key” on page 4.18 .
<vbw>: Video bandwidth
Range of values:
1 Hz to 10 MHz in 1, 3, 10 steps.
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.