F SERIES HANDHELD TRANSCEIVERS Icom, Inc.: “Man-down” plug-in mercury switch feature senses when radio is horizontal and sends signal to dispatch. Initial beep warns operator before signal is sent. Designed for remote monitoring and can be tied into computer-aided dispatch system. Audible alarm aids in operator location. Optional on all IC-F30/40 and LT transceivers; can be retrofitted on earlier models. (206) 454-8155.