Karen:

You got stuck by the same advertising as I: knowing that the 700
worked on the ham bands, and seeing advertising for the 710 that it
had ham bands on it, you probably assumed it could transmit on 2
meters. It can't, and no one will tell you how to modify it --
assuming it could be done. (I once modified a Yaesu transceiver for
an expanded band, but that was specifically covered in the
instructions for international use.) Jump at Mike's offer of a used
700 -- I did just that and am glad I did. Then see if you can find
someone to take the 710 off your hands. I ended up giving mine away,
and I'm still angry at South Coast Avionics for writing an
advertisement that could be interpreted as meaning that the 710 did
everything the 700 did. And angry at myself for not doing more
research about why the 700 was no longer available but had been
supplanted by another model that was very nearly the same. Fred