Patent ID: 8210959

Claim:
A system for tracking a golfer's shot during a round of golfer, the system comprising: a receiver; a plurality of devices, each of the plurality of devices positioned within a grip of a golf club of a set of golf clubs, each of the plurality of devices comprising a microprocessor positioned within the housing, the microprocessor in electrical communication with the battery, a resistor, a capacitor, a shock switch a radiofrequency component positioned within the housing, the radiofrequency component in electrical communication with the microprocessor, the radiofrequency component transmitting a signal; wherein the device has a 2 milliamps limit for transmission of the signal, wherein after impact with a golf ball, the shock switch is closed allowing power to flow from the capacitor to the radiofrequency component for transmission of the signal, and wherein the resistor minimizes an electrical current flow to the capacitor to allow the capacitor to be charged at a controlled rate from the battery.