you need wi fi to get this item.
professor oak gives it to you
you cant
you have to see 150 Pokemon then talk to professor oak..
No, it's not possible.
I will eat it!
Professor Oak is't in Pokemon Diamond . o.o Not that I remember lol I beat the game along time ago but I don't remember Professor Oak ever being in it since it's Sinnoh .
in Pokemon diamond,he should be in one of the empty houses in southern Eterna City.That's where i found him.
Go to his laboratory. You'll see him and Professor Oak also.
If you have the National Pokedex, Prof. Oak will be in a house in southern Eterna City.
you have to complete the national pokedex and see professor rowan. then professor oak will come in and give you the pokeradar.
no you have to catch it yourself
route 224