Thanks for the dialogue everyone.
Bluetooth sends signals over a 2.4GHz radio frequency.
This becomes problematic when other nearby devices are also using that frequency. Wi-Fi is perhaps the biggest and most problematic example, as are other Bluetooth receivers and devices,
which can interfere with one another.
I wonder if a Model S fob ( which uses the same exact frequency ) can interfere with the Bluetooth signal from your phone. Although .....Bluetooth technology use what’s called spread-spectrum frequency hopping. That is, they rotate between 70 randomly chose frequencies within their range, changing 1,600 times a second. This makes it unlikely that two devices will share the same frequency. And when they do, they won’t for very l
ong. Other Bluetooth technology also employs what is called AFH, a technology that identifies “bad” channels (i.e. those that are already in use) and instigates a switch ( THIS ONLY happens with the latest android and iPhone phones ) . in other words....not all Bluetooth is created the same as AFH is really cool. I wonder if Tesla Model 3 has adopted AFH..hhhmm. My vote would be yes....but....
I suppose the question could be....How can we tell what signal the Model 3 is concentrating on? That would be a nice feature on the screen. My phone has discovery that shows other Bluetooth opportunities in the immediate vicinity as well as the signal strength of those Bluetooth devices......why not the Model 3? What device is it listening to? Wait a min.....it would have to have this feature as it needs to be able to pair 1-4 different phones for access. What was I thinking?
I have a set of Bose Bluetooth headphones that I can simultaneously connect to my phone and my laptop. It works great, however if they are sitting next to one another and I start walking away while wearing my headphones.......I ALWAYS 100% of the time lose connection with my phone before I lose connection with the laptop.
I can tell you this for a fact. I live in Chicago and I can hardly get ANY kind of Bluetooth to consistently work downtown Chicago on Michigan Avenue around Jackson and Adams. There is some kind of gigantically powered 2.4GHZ signal that has all Bluetooth antennas attracted to it. I will have to use my Model 3 card when downtown. I know this for sure.
That said, even microwaves can cause Bluetooth interference with your devices. So can Direct Satellite Service (DSS), 2.4GHz and 5GHz phones, wireless speakers, external monitors, baby monitors, and really any wireless device that uses Bluetooth technology. Fluorescent lights have been known to vibrate at 2.5Ghz for those with that type of lighting in their garage. Turn out the lights and see if your car responds better. Don't try to open the model 3 while you are microwaving a pizza in the garage...lol
That's pretty much all I know about Bluetooth off the top of my head. I am going to set up a Bluetooth monitor using my raspberry pi to capture Bluetooth connectivity in my house. I'm now interested in the signal strength of all of my devices.