Has anyone tried using there Yaesu FT897D with DSD so they could listen to public safety ?
Some issues:
The digital modes that the Ft-897D can use out of the box are SSB AFSK modes.
You would have to modify the radio to have a discriminator output to receive FM based digital modes.
The frequency coverage of the receiver does not cover all public safety bands.
It could not scan trunked systems.
A dedicated scanner is almost always a better way to go to scan public safety.