R4030 REGENCY R-4030 SCANNER EXPANDED RF REMOVE 2 SCREWS FROM CASE AND 2 FROM BATTERY PLATE AND OPEN CASE. REMOVE 2 SCREWS FROM BOTTOM OF CIRCUIT BOARD. CAREFULLY PULL FROUNT PANEL FORWARD. LOCATE AND REMOVE 10K RESISTOR R215, ABOVE MICROPROCESSOR. LOCATE AND REMOVE DIODE D203 AND RESISOR R208 BY THE SPEAKER. REPLACE FROUNT PANEL, CAREFUL TO GET CONNECTOR FIXED CORRECTLY. THIS MOD EXPANDS RF AND EXTENDS BATTERY LIFE.