Hi There
we use 8720ES HP Agilent Vector Network Analyzer but we see this error message on its display: "caution: phase lock cal fail" recently. we did some tests but the error is reminding. Can anyone help us. it's very urgently
thnx a lot
Well, the measurements are not going to be accurate if you have error messages like that. Make sure there is nothing connected to the "external reference", or whatever it is called, on the back panel. I am not sure there is a way in the software to make sure the external reference port is disabled.
Hi there
Before any testing and after power on the VNA this message appears and it's like that the VNA calibrate always after power on and it's prevents any testing