Rangefinder using expanded time delay

摘要: The system is comprised of a plurality hand held units carried by golfers, flagstick located at golf course and master Clubhouse unit. Each unit includes power source, transceiver, distance determining circuit, keyboard with display, an audio generator microprocessor which controls the mode transceiver controlling microprocessor. subprograms control function or To determine between unit, button on pressed to select particular activated activate indicating was properly and, simultaneously, circuit are activated. actually timing measures amount time required for signal from reach selected be retransmitted back capacitor linearly charged during transmission discharged slower rate charge directly proportional flatstick also provided magnetic charging so that can without use connections embodied in sealed apparatus.