John Yaldwyn is Senior PLM for Access Products at Aviat, previously he was CTO at 4RF acquired by Aviat in 2024. John focuses on the security and technical considerations of radio technology for critical infrastructure applications. A graduate of Victoria University of Wellington, he has a science degree and has done post graduate study in France at École Nationale Supérieure des Télécommunications. He is a member of the Victoria’s Engineering Faculty Advisory Board.