SONAR
xx RADIO
Fish finding 101. Tips on understanding and using an electronic (sonar) fishfinder. BOATING WORLD #141 Jul 1998 pg. 30
Combine automatic sonar ranging and infrared-light detection in a computer-controlled scanner. Uses a Polaroid Ultrasonic Ranging System. BYTE Nov 1980 (v.5#11) pg. 32
An ultrasonic ranging system. "SonarTape" measures distances from 1.5 to 35 feet using sound waves. Utilizes the TI SN28827 sonar-ranging module. BYTE Oct 1984 (v.9#11) pg. 113
Ultrasonic (sonar) transmitter for secret transmissions or demonstrating doppler shift radar. POPULAR ELECTRONICS [1] Sep 1964 (v.21#3) pg. 41
Build your own sonar system. Simple circuit uses one IC and can be used as a submerged object detector, depth finder or fish locator. POPULAR ELECTRONICS [1] Jul 1976 (v.10#1) pg. 81
Scanning underwater surfaces. How to build a sonar system. A low-cost underwater transducer can be used to locate fish and other objects. SCIENTIFIC AMERICAN Aug 1994 (v.271#2) pg. 90
|