I have owned a 920 since 2001 and I must say that it is a very good radio but if you plan on doing any AM work I suggest that you get an AM filter otherwise you will be listening to about 30 kc,s at once without it.The SSB filter is adequate for everyday stuff but if you are going to do any contesting get a tighter filter from Inrad and for all the 920 users there is another bank of options available on the menu .
With the radio off, press (step) and (lock) under VFO A and hold these two keys in while you turn the radio on.Now release the two keys.
Enter the following password: 0761161,then press (ENT).
Press (menu),rotate VFO B through the "U" settings till you get to the "F" menu (F-01 F-35).
These look like are a service tech menu, use at your own risk.
Bob