"Type Approved"
Devices used in the radio spectrum undergo testing to meet certain standards for power output, frequency stability, user interface etc. ALL aspects of that radio must meet a minimum standard and are tested for that criteria.
Commercial radios must meet certain criteria, Amateur radios meet a different criteria and scanners meet yet a third criteria. (self programmable radios are not type approved for use in the commercial band are one part of the criteria)
Generally, old commercial equipment is sought after by ham enthusiasts as tolerances are quite a bit tighter than ham radio gear.
Somewhere down at the bottom of the pile are those cheap chinese Baofeng radios. Connect one of those to an analyzer and you'll see those splattering shit all over the spectrum.
However, they still work and they are cheap (for a reason)
Used commercial radios can be had fairly inexpensively and cables and software can be obtained reasonably easy.