I´m looking for infos about "opening" a Icom 710 for Ham-Bands.


There's nothing you need to do - it works on ham bands right now. The
cloning cable will allow you to set up a bunch of presets but you don't need
it.

It's a little annoying to use the 710 for ham QSO's because you need to find
a channel to work in receive mode and then set the transmit frequency
manually to the same frequency. You need to really understand the sequence
of button presses to make it work effectively. The bottom line is that you
can operate on all of the ham bands without anything special or having
anything "clipped."