AnsweredAssumed Answered

Active channel and measurement on PNA

Question asked by b.d.hall on Nov 16, 2009
Latest reply on Nov 30, 2009 by Dr_joel
I have a simple script that talks to my PNA using SCPI commands over the GPIB. When the script starts, it queries the PNA with 'SYST:ACTIVE:CHANNEL?'. Sometimes there is no active channel, which results in an error. Can I somehow avoid generating these errors (ie is there some way to get the PNA to tell me when not to query)?