[RFI] Icom R5 / R6 AM frequency range?

[N1BUG]

The specs for the Icom R5 and R6 receivers only list AM sensitivity 
in specific bands to 330 MHz. Does anyone have one of these? I would 
like to verify that it will receive in AM mode above that.

I've been thinking about the need for UHF (and possibly someday even 
HF) in tracking down power line noise. These little receivers meet 
my portability requirements and would seem to offer a lot of added 
capability for the price. Anyone see anything wrong with this approach?

Paul