Originally Posted by James_Twokay:
“Just wondering if anyone else is suffering the same issue as me. I have an iPhone 5s on O2 and and it causes really bad interference with my Sony wireless headphones to the point I have to switch my 4g off. Does anyone know how to eliminate the interference or able to suggest wireless headphones which don't suffer from the same interference?
Any advice is greatly appreciated.”
A lot of wireless headphones use a bit of unlicensed spectrum from 863 - 865 MHz which is right next door to the 800MHz 4G upload spectrum so there is a good chance this is the problem. O2 in particular is closest using 852 - 862 MHz for upload.
Whilst you can't alter the fundamentals you could try a few things.
Keep the phone as far away from the headphones or base as you can. Even very small distances can make a big difference when you have 2 different but very close frequencies.
Minimise the phone output. If you are connected to wifi the phone shouldn't need to use 4G that much.
Some headphones have a switch to give you a choice of channels if you are suffering interference from other headphones. This won't make a big difference as the separation isn't large but it's still worth trying.
If these don't help then you probably need to consider different headphones that use a different frequency (or a different network that doesn't primarily use 800 MHz for 4G but that's a bit extreme)!