You're looking for the manual for the NetSet PRO44 scanner. Here are a few options to find the link:
You can access the full PDF manual and quick-start instructions at the following repositories: RadioShack PRO-44 Owner's Manual : View or download the full 32-page guide at ManualsLib Realistic PRO-44 User Manual : A scanned copy of the original manual is available on the RigPix Database Technical Specifications : Basic band coverage and features are listed on Scanner Master Basic Programming Steps netset pro44 scanner manual link