At around 40 or so, it seems to be advisable that you shouldn't risk breaking your chain (if you're looking for a Shiny). If you use the pokeradar while still in a chain, you reset the positions of the wild Pokemon. This can be exploited if you want to avoid the edges or don't like the placement of the grass patches that you got.
I caught two Shiny Ralts yesterday (first was a female, kept the chain going and found a male in about 10 minutes), so I'm inclined to say it raises your odds. Female was #42 and male was #45.
I caught two Shiny Ralts yesterday (first was a female, kept the chain going and found a male in about 10 minutes), so I'm inclined to say it raises your odds. Female was #42 and male was #45.












