Inside the GE Phoenix SX Radio
VHF model shown below
(UHF models vary slightly)

INSIDE TOP VIEW OF PHONIX.  The X2212 Chip can be pulled and programmed.

The X2212 is here!

Adjustment locations


Increasign output power levels beyond 40 watts (25 for UHF) is not recommended.
Keeping these units within intended spec will prolong the life of the radio.

The SQUELCH and DEVIATION settings are probably the only items you will have to check
Power can be reduced if needed  with the Xmit Power Adjust pot.

See available online maintenance manual info for specific information regarding this radio.