Many Cheap Portable dual band Transceivers (such as UHF and VHF Wouxun KG-UVD1P) HAM radios can be programmed to operate in FRS (USA channelized frequencies around 462 and 467 MHz) and PMR446 (UK Analog PMR446 covers band 446.0 - 446.1 MHz) but these unlicensed radio channels are limited to 500mW.
These portable HAM transceivers will broadcast at between 4000-5000 mW, enhancing range broadcast considerably.
How difficult would it be for the authorities to track down and locate these broadcasts let alone determine the broadcast power was illegal without some serious triangulation surveillance by the FCC's Enforcement Bureau let alone prove your handset was responsible especially in a grid down power outage?
Listening into HAMs on SW bands will rarely get you any useful information. I think I will concentrate on a 20W Satellite/PC notebook system powered from a 12V rechargeable Lithium battery.