R&S ZVB - Instrument

R&S
®
ZVA / R&S
®
ZVB / R&S
®
ZVT Command Reference
SCPI Command Reference
Operating Manual 1145.1084.12 – 30 762
INPut<port_no>:ATTenuation <numeric_value>
Sets the attenuation for the received waves. The generated wave is attenuated via
OUTPut<port_no>:ATTenuation.
Note: INPut<port_no>:ATTenuation is not channel-specific; the value is valid for all channels. Use
[SENSe<Ch>:]POWer:ATTenuation to set or query a channel-specific attenuation value.
<port_no>
Test port number of the analyzer, 1 to 2, 3 or 4, depending on the analyzer
model. If unspecified the numeric suffix is set to 1.
<numeric_value>
Attenuation factor for the received wave.
Range [def. unit]
Depending on the analyzer/attenuator model, e.g. 0 dB to 75 dB for
ZVA8/ZVA8-B31/32/B33/B34 [dB]. UP and DOWN increment/decrement the
attenuation in 5 or 10 dB steps. The analyzer rounds any entered value below
the maximum attenuation to the closest step.
*RST value
0 dB
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 selects or queries particular resources (SCPI: logical instruments) of the analyzer.
INSTrument:NSELect <Channel>
Selects channel as the active channel.
<Channel>
Number of the channel to be activated. The channel must be created before
using CONFigure:CHANnel<Ch>:STATe ON.
Range [def. unit]
1, 2, ... [–]
*RST value
1
SCPI, Command
Types
Confirmed, command or query. If all channels have been deleted
CONFigure:CHANnel<Ch>:STATe OFF the query returns 0.
Example:
CONF:CHAN2:STAT ON; :INST:NSEL?
Create channel no. 2 and select it as the active channel.
The query returns 2.