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From my understanding, the Bluetooth signal is using a 2.4 GHz frequency.
However, when someone is playing with a 40 MHz RC vehicle, the Bluetooth signal keep on getting interrupted or disconnected.
Does the 40 MHz RC vehicle is the root cause that cause the Bluetooth to get interrupt or disconnect?
If it is not the RC vehicle, what might likely cause such interference to the Bluetooth signal?
Thank you.
Just like any radio receiver, the front end/antenna wanted signal is very tiny - maybe about a couple of micro volts. Along comes a big signal from a relatively more powerful 40MHz radio transmitter and the front-end circuit is swamped into overload and this compresses the wanted signal.
It's called compression: -
Here is a site that should explain this
In theory, harmonics of 40MHz multiplied by 60 is 2.4GHz. Practically, every next harmonic frequency has much less power than previous one. So at 60th harmonics the influence can be considered as 0.
Microwave, some Wi-Fi networks, nRF module, ZigBee, some proprietary devices use 2.4GHz carrier RF.
Motors create broadband (wide spectrum) RF noise. It's possible that it's actually the motors in the vehicle, rather than the intentional RF from the controller, that's causing the interference.
