I found a [question on Android Enthusiasts](http://android.stackexchange.com/questions/82577/does-excellent-4g-coverage-imply-excellent-3g-coverag) that was off topic for that site. It was about mobile networks (3G and 4G).

Would such a question be on topic on this site? Or is there any other site (in the StackExchange network) where such a question would be on topic?