First find the PC board with the jumpers on (behind the front panel).Then
find 'J2',there is a jumper
on pins P3 and P4.If this is jumper is removed you will get coverage
from 26 Mhz to 29.7 Mhz.
If this jumper is then place on P1 and P2 coverage will be from 26 Mhz
to 32 Mhz(re tuning may be
needed to operate in 30-32 Mhz range).
The CPU now needs to be reset by pressing the button located below 'J2'
Good luck 73 Steve KB9HGI