Some weeks back someone asked where they could obtain the manual for the old Kenpro KR-5400/KR-5600 AZ/EL rotors. These are the predecessors of the Yeasu 5400 rotors. There is a lot of similarity since Yaesu bought out Kenpro. The person asking never responded when I replied that I had made him a copy of the manual. It has been sitting on my desk, taking up needed space, so I will send it to the first person having the KR series rotors asking for it with a complete mailing address. If none then it will go to someone else. If none, it will be tossed out.