I normally test <3GHz on these E5071C's, but now I need to go up to 6GHz. I tried calibrating with the following settings:
IF = 10kHz
POWER = 10 dBm
RANGE = 3550 to 3700
and 5000 to 6000
This gives me the "Power Unstable" message, sometimes, during calibration. After this I tried power of 7 dBm, 5 dBm, and 0dBm. I have calibrated an E5071C multiple times now with an ECAL unit and with a manual CalKit and no matter what I do I get these weird intermittent blips in my measurements that are stuck on -200. I can't find any mention in the documentation or anywhere else online about this.
Has anyone else experienced this? Any solutions?