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There is also an 80 channel modification but it gets pretty involved.
Here is the mod for the Radio Shack Pro-2020 Scanner that I posted
to Info-Hams Vol 89 Issue 314, Slightly condensed.
It adds another 80 memories to the existing 20, in four banks of 20,
and suggests other mods.
It MIGHT...
I know this is an 12 year old post but yes, there are 2 resistors inside on the logic board, you will see there are dotted lines diagonally, move the (2) resistors to those dotted lines to receive 30-50MHz, or vice versa, USA model is straight across, Euro is 68-88MHz diagonal positioned...
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