I am new to SW and really have no idea what to get. I am really just
looking for one to use in an emergency situation but I would teach
myself how to use it. Something that would let me listen in on all
kinds of possible transmissions. I would like something that is not
too large (easily fit in a backpack). Also able to run off of
batteries.

What do you really get when you step up from a hand held to a base
station type unit? I imagine it is power. Do those require a license
to operate?

Thank you!
Karl