Interference to 5.8GHz FPV video feed from DJI Phantom

Greetings, not really arducopter question as such, but when flying my arducopter FPV frame in the close proximity (within 100m) to an operating DJI Phantom, my analogue 5.8 GHz FPV feed becomes unusable, horrendous interference.
Anyone encountered / remedied the same issue ?
Thanks