Depth finder having variable measurement capabilities

Details Depth finder having variable measurement capabilities Depth finder having variable measurement capabilities

1990-07-23

1991-11-12

Pihulic, Daniel T.

Communications, electrical: acoustic wave systems and devices

Echo systems

Distance or direction finding

367902, G01S 1596

Patent

active

050653717

ABSTRACT:
A depth finder utilizing a CPU to control the function of various components including a transducer, receiver, and a liquid crystal display, allowing a user to select between fresh and salt water operational modes as well as between English and metric display units. The CPU is controlled by a keypad and varies the rate at which stored transducer data is transferred from the receiver to the CPU such that the data is always representative of a fixed depth increment in any operational mode.

REFERENCES:
patent: 3942149 (1976-03-01), Westfall, Jr.
patent: 4943951 (1990-07-01), Leavell et al.
Z-7500 Manual; Eagle Electronics, P.O. Box 669, Catoosa, Okla. 74015; 1987; pp. 1-35.
1988 Eagle Catalog; Eagle Electronics, P.O. Box 669, Catoosa, Okla. 74015; 1988; pp. 1-23.

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