Thankyou chevron. So it seems that cable is the way and BT might profit from it. At EGNM, the receiver site is within the airfield boundary so I wouldn't have thought BT would benefit, unless they provide technical expertise. Do you know how the cables are maintained or replaced ? Access must be an issue; again, at EGNM, there is a runway between the receivers and the tower which rather limits scope for digging holes and trenches !