Best 5GHz Channel for vehicle use?
Me (any many others) have issues with CarPlay in BMWs dropping out in certain locations. At first, I thought it was DFS drops in the U-NII-2 band, but it turns out my car chooses U-NII-3 channels every time.
Thinking about it, I think I'll code the car to use U-NIII-1 channels. U-NIII-1 is most common for indoor use, but U-NIII-3 is most common for outdoor PtP links etc, which is probably the biggest threat to the car (which is always outside and always moving).
Surveys don't help, because the car can be any place at any time.
Is it agreed that channels 36, 40, 44 and 48 are probably the best 5GHz channels for in-vehicle use, due to the popularity of outdoor PtP and PtMP wireless links (with illegally high transmit power) on the higher channels?