when rat shack had the dx399 on close-out for $30 i bought three of
them. i have one for rough service as my dumptruck radio and another to
use around the house. the third is stored unopened as a spare. my
question is this: can the radio deteriorate in any way by never having
batteries put in it? how is its software stored? i know that lots of
devices have a miniature rechargeable battery on the board and needs to
be powered up occasionally to keep its memory. are digital radios like
this? or is everything "burned" in permanently?