R&S ZVL
Command Reference
Instrument-Control Commands
Operating Manual 1303.6580.32-05
453
[SENSe<Ch>:]POWer:ATTenuation
to set or query a channel-specific attenuation value.
<port_no>
Test port number of the analyzer, 1 or 2. If unspecified the numeric suffix is
set to 1.
<numeric_value>
Attenuation factor for the received wave.
Range [def. unit]
0 dB to 30 dB. UP and DOWN increment/decrement the attenuation in 5 dB
steps. The analyzer rounds any entered value below the maximum attenuation
to the closest step.
*RST value
+10 dB (0 dB for R&S ZVL13)
SCPI, Command
Types
Confirmed, no query (query cannot return channel-specific settings, would be
misleading).
Example:
INP2:ATT 10
Set the step attenuator for the wave received at port 2 and for all channels to
10 dB. The waves at the other test ports are not affected.
SENS1:POW:ATT? BREC
Query the receiver step attenuator setting at port 2 and for channel no. 1. The
response is
10
.
INSTrument...
This subsystem identifies and selects particular resources (SCPI: logical instruments) of the analyzer.
INSTrument:NSELect <code_no>
This command switches between the measurement modes by means of numbers.
<code_no>
2 - Network analyzer mode
1 - Spectrum analyzer mode (option R&S ZVL-K1, also enables the
commands with code numbers 3 and 12)
19 - Noise figure and gain measurements (option FSL-K30)
8 - WCDMA measurements (3GPP/FDD BTS, option FSL-K72)
16 - WLAN OFDM analysis (option FSL-K91)
6 - WiMAX OFDM/OFDMA analysis (option FSL-K93)
3 - AM/FM/
^
M measurement demodulator (option FSL-K7)
12 - Bluetooth measurements (option FSL-K8)
The codes for the different spectrum analyzer options are also included in the
option descriptions.
*RST value
2
SCPI, Command
Types
Confirmed, command or query.
Example:
INST:NSEL 2
Switch the instrument to network analyzer mode.
