Comment by lxgr

Wifi positioning does not actively talk to the network you‘re connected to, but rather does a beacon frame sweep and then matches BSSIDs seen with some database.

One side effect of this is that in order to scan all possible wifi channels, your baseband needs to tune to different frequencies at least for a short period of time.

Theoretically this interval should be short enough to avoid any disruptions – practically that‘s apparently not always the case.