Abstract: A microwave transmission antenna arrangement for transmission of microwave signals from a position located in the adjacent vicinity of a bale transfer apparatus for transporting bales past the antenna for assessment of bale characteristics such as moisture in cotton including an antenna supported by a forgiving support by being relatively movable in position if a bale intercepts the antenna. The antenna is supported so as to be restored to a transmission and/or receiving position subsequent to any dislodgment as a result of any interception of a bale.