To use pokeradar go to key items then press use. After you do that there should be shaky spots in the grass,(did i mention you have to be in grass) choose the shakier and shinier ones.
You must use the PokeRadar on Route 218. They are kinda rare though.
yo can catch it where you find bagon and stuff but use a pokeradar its rlly rare
You can Catch them in on the route 206 in Pokemon diamond, pearl, and platinum but is quite rare to catch so you should use a pokeradar in the grass.
you have to use your pokeradar on route 205
In route 222. How: Use pokeradar.
use a pokeradar in eterna forest
You have to use the PokeRadar on Route 205
Yes use your Pokeradar
Use the pokeradar on route 207.(pokeradar obtained after you complete the sinnoh dex)
use the pokeradar on the grass at valor lakefront
You can get Duskull by using the Pokeradar on Route 224 in Pokemon Diamond. You must use the Pokeradar at night in order to find and catch Duskull.
If you go to the TV in Dawn/Lucas' house or ask Dawn/Lucas' little sister she will tell you a rare Pokemon of the day. Or you can use your Pokeradar.