Abstract: A depth display device for use with a flasher type fish finder system including a primary unit and a transducer assembly. The depth display device includes an enclosure, a microcontroller, a display panel, a transducer port, and an interface cable. The transducer port is configured for connection with the transducer assembly cable. The interface cable terminates at a connector configured for connection with a receptacle of the primary unit. During use, the display device establishes an electrical connection between the primary unit and the transducer cable such that drive signals generated by the primary unit are delivered to the transducer assembly, and return signals generated by the transducer are delivered to the primary unit. The microcontroller samples the transmitter and return signals to determine a depth of a body of water, and operates the display panel to display the determined depth.

Abstract: A depth display device for use with a flasher type fish finder system including a primary unit and a transducer assembly. The depth display device includes an enclosure, a microcontroller, a display panel, a transducer port, and an interface cable. The transducer port is configured for connection with the transducer assembly cable. The interface cable terminates at a connector configured for connection with a receptacle of the primary unit. During use, the display device establishes an electrical connection between the primary unit and the transducer cable such that drive signals generated by the primary unit are delivered to the transducer assembly, and return signals generated by the transducer are delivered to the primary unit. The microcontroller samples the transmitter and return signals to determine a depth of a body of water, and operates the display panel to display the determined depth.

Abstract: A depth finder system of the present invention permits detection of the presence of objects within a body of water located below a body of ice. The depth finding system includes a display unit, an electrically conductive cable, and a transducer. The display unit is locatable on the body of ice adjacent a hole in the body of ice while the electrically conductive cable is electrically connected to the display unit. The transducer is capable of transmitting a sonar sensing wave in the shape of a cone through the body of water to detect the present of objects therein. The transducer system can include a positioning means for selectively fixing the conductive cable relative to the positioning means for selectively controlling the length of cable permitted to extend within a body of water below the body of ice.

Abstract: A scale arranged and constructed of relatively small size to be hand held and portable for use in weighing relatively light articles such as fish and the like. The scale operates on a capacitance measuring concept wherein an initial capacitance between two conductive, spaced and insulated plates is measured with a change in distance between the two plates caused by a load is measured and, through a logic circuit, converted to a digital read-out. The capacitance sensor unit for the measuring of the capacitance caused by the load includes a stationary plate and a moveable plate insulated from each other with proper leads connecting the plates to the logic circuit. The entire capacitance measuring device is provided in a sandwiched arrangement to provide a small and compact unit. The logic circuitry provides for digital readout and provides automatic zeroing.