Thanks for the info Simon and Kriss.
Pardon my ignorance, but what good does this FW upgrade (R3.0.7) do?
Reading the Airspy change log ( https://airspy.com/downloads/hfplus_changelog.txt ) it looks like being a USB interface improvement. Is that correct?
What would that mean to me as a casual user?
Or, has the sampling band width increased? I do not think so.
73 / Ingolf, SM6FHZ