> And in a busy environment (I often see dozen's of APs in a scan) pretty much every channel is occupied audio) with lots of nearby wifi's is always going to be hit and miss.ĪirPods are Bluetooth Class 1 devices and can transmit at 100 mW as well! A larger (omnidirectional) antenna doesn't increase the EIRP either, which is what is limited in case for both Bluetooth and 802.11. ![]() Trying to use BT for relatively high rate date (e.g. Low data rate stuff with error handlng/repeat transmissions often works by getting through during periods when there happen to be few interfering signals. Also the short wavelength (~10cm) means the RF bounces and refracts all over the place, often resulting in small dead spots where devices fail to communicate (and the dead spots move about as the environment changes,e.g people moving around).Īs a result, getting anything through relies on lots of error handling and quite a lot of software is not the highest quality, shall we say? It's also not helped by lying user interfaces telling you a device is connected when snooping packets manifestly shows its not (looking at you, Apple).īluetooth can be pretty reliable - in RF-quiet environments. Many of the Bluetooth devices around use Nordic Semi nrf5x chips, and we know that with those chips if there's a single wifi transmitting at one end of the frequency band and all the BT-type devices up at the other end there's still significant interference effects. One factor is Bluetooth is on the 2.4GHz band, and WiFi on that band is many times more powerful - so Bluetooth packets can only get through in the gaps between Wifi transmissions.
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