I'd assume, if done legitimately, that the instrument contains cal points across all the bandwidths it could be used and doesn't need redone. On our Rigol scopes we don't offer a legitimate after sale BW upgrade. On units like that you may be taking your chances a bit more. If I were going to upgrade the BW on the sly I'd definitely run whatever auto-cal sequence I could as well as a few tests.
What are the engineering and design challenges in creating successful IoT devices? These devices are usually small, resource-constrained electronics designed to sense, collect, send, and/or interpret data. Some of the devices need to be smart enough to act upon data in real time, 24/7. Are the design challenges the same as with embedded systems, but with a little developer- and IT-skills added in? What do engineers need to know? Rick Merritt talks with two experts about the tools and best options for designing IoT devices in 2016. Specifically the guests will discuss sensors, security, and lessons from IoT deployments.