I have a pro 2023, and have the documentation converted to .txt files
from the radio shack website.
dunno if this'll help for the pro 2018, but I found pretty decent
documentation for the 2023 from the radio shack site.

On 6/19/13, Pat Byrne <[log in to unmask]> wrote:
> i have my ducks in a better row now.  I am attempting to help a
> friend with a Radio Shack PRO2018 scanner.  Does anyone have any hand
> on experience with this scanner and/or documentation?  If I press
> various buttons on the left side of the keypad I can access, I
> believe the pre-programmed service types but can't figure out how to
> enter a particular frequency.  Also I have done a reset using a paper
> clip and the small hole on the back of the chassis but this didn't
> make any changes.
> Eventually I will have a pair of eyeballs over and then it will get a
> lot easier but I'd like to make some progress if I can.
> Thanks.
> Pat, K9JAU
>