The most comprehensive book on Black Box technology ever assembled.
Learn how and why fish are attracted to a downrigger cable that gives off a small electric charge.
The book also gives a step by step procedure you can use to determine if your boat attracts or repels fish.
Learn the principles of the Black Box and how to optimize your boat's charge for each species of fish.
This 2006 edition book may be purchased at tackle dealers.
To order it direct call:
$8.95 plus shipping