Instructions for modifying a 450 Mhz
GE MVP, MASTR EXEC II or MASTR II Exciter to 420 Mhz
Replace the following components on the exciter PCBA.C118 from 27pf to 30pf.
C121 from 27pf to 30pf.
C122 from 20pf to 24pf.
C192 from 18pf to 24pf. Located under the shield can of T105
C193 from 27pf to 39pf. Located under the shield can of T106
C138 from 39pf to 56pf.
C143 from 39pf to 47pf.
C194 from 8pf to 12pf. Located under the shield can of T107
C195 from 6pf to 9pf. Located under the shield can of T108
C145 from 15pf to 22pf.
C147 from 15pf to 30pf.
Remove L114 and install R136 a 10 ohm resistor