### INPut...

This subsystem controls the characteristics of the analyzer’s input ports.

Command tree: INPut

:ATTenuation

#### INPut<port_no>:ATTenuation <numeric_value>

Sets the attenuation for the received waves.

Note: INPut<port_no>:ATTenuation is not channel-specific; the value is valid for all channels. Use [SENSe<Ch>:]POWer<port_no>: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 35 dB for ZVA24/ZVA24-B31/32 [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 5-dB step.
*RST value | 0 dB
SCPI, Command Types | Confirmed, no query (query can not 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.