Walk in the grass and use it. Don't ride the bike.
use poke radar on route 210
route 210 (use poke radar)
fuego ironwoks (use poke radar)
Mt.cornet use a poke radar (it is rare)
You use your Poke Radar.
you have to get a bagon on route 210 use poke radar
go to route 209 and use the poke radar
u use poke radar at fugo iron works
You get the Poke-radar app after you obtain the National Dex.
Use your poke radar on route 205 north.
To get the Poke Radar you gotta fill up the Sinnoh Pokedex, talk to the professor, and he will give you the National Pokedex and the Poke Radar.
use the poke radar on route 218 (rare)