Articles: Fishfinders

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Vexilar Portable Depth Sounder/Fishfinder with built-in WiFi

This is a very cool idea. It looks like a tennis ball but it is a portable WiFi fish finder. The Vexilar SonarPhone T-Pod Sonar/Transducer can be cast, thrown from shore or pulled behind your boat. The SP100 has a single beam, 30 degree wide-angle beam signal using a 125 kHz transmit frequency. It has a self-contained battery that turns off automatically to save power, is charged through a computer USB port or the included USB wall plug charging cube and lasts up to 4 hours on a single charge.

CHIRP up!

CHIRP techniques have been used for a number of years in many commercial and military sonar systems because of its ability to facilitate longer transmissions (see deeper targets) and differentiate objects in close proximity to each other, adding texture and detail never before imagined with conventional sonar systems.

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