Just got my 2206 yesterday. A couple of questions come to mind right away. I plan to use it quite a bit for work on old tube radios. The PC I plan to use will be running on batteries most of the time.
1. I'm concerned about the lack of a "true ground" in this arrangement. I'm thinking I should make up some kind of small BNC adapter with a ground lead on it I can run to "true ground" (An 8ft copper-clad stake driven in the ground just ouside my work area, I take grounding really seriously... Is this really necessary? There's a ground clip on the probe I'm using, but it's been known to pop loose sometimes. My old scope (size of a small suitcase) is inherently grounded to the wall socket so I'v enever needed to think about this before.
2. Voltages up to 500V may be present in these old radios. I am going to use a good quality 10:1 attenuated probe. Reading the specs about overvoltage protection I'm assuming that even if I do something really stupid I'm OK because I'm under the 100V protection limit with the attenuated probe. Is this correct?