CMU RF Measurements 
1100.4903.12 6.39  E-10 
Subsystem INPut, OUTPut, CORRection:LOSS ( /Ext. Att.) 
The subsystem for input and output contains the commands for configuration of the input and output 
connectors. The subsystem corresponds to the tab RF   in the popup menu Connect. Control. 
 
INPut[:STATe] <State>  RF Input
<State> 
Parameter description  Def. value  Default unit  FW vers. 
RF1 
RF2 
RF4 
Connector RF1 used as input 
Connector RF2 used as input 
Connector RF4 IN used as input 
RF2 –  V1.15 
Command description 
This command determines the connector to be used for incoming RF signals.  
The bidirectional connectors RF 1 and RF 2 can be used both as input and output connectors in the same meas-
urement (see OUTPut[:STATe]). Only one input and one output may be active at a time, which is why the cur-
rently active one is automatically deactivated on switchover. 
 
OUTPut[:TX][:STATe] <State>  RF Output
<State> 
Parameter description  Def. value  Default unit  FW vers. 
RF1 
RF2 
RF3 
Connector RF1 used as output 
Connector RF2 used as output 
Connector RF3 OUT used as output 
RF2 –  V1.15 
Command description 
This command determines the connector to be used for outgoing RF signals. 
The bidirectional connectors RF 1 and RF 2 can be used both as input and output connectors in the same meas-
urement. Only one input and one output may be active at a time, which is why the currently active one is auto-
matically deactivated. 
 
[SENSe:]CORRection:LOSS:INPut<nr>[:MAGNitude] <Absorption> 
SOURce:CORRection:LOSS:INPut<nr>[:MAGNitude] <Absorption>  Ext. Att. Input
<Absorption> 
Parameter description  Def. value  Default unit  FW vers. 
–50 dB to +50 dB 
 
–90 dB to +90 dB 
Value for external attenuation at Input <nr>, where 
<nr> = 1,2 
Value for external attenuation at Input <nr>, where 
<nr> = 4 
0.0 
 
0.0 
dB 
 
dB 
V1.15 
Command description 
This commands assigns an external attenuation value to the inputs of the instrument.