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FISHING, MARINE & OUTDOOR PRODUCTS BLACK BOX BLACK BOX "Positive Voltage Control" "Positive Voltage Control"...
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By maintaining a steady and appropriate positive charge on your downrigger wire, it is possible to attract fish and keep them interested in your lures. The Black Box does this in both salt and fresh water.
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Some vessels may be so well bonded that the natural electrolysis is ideal. These boats may not benefit from the use of a Black Box. A Black Box draws very little power (about .1 amp at full load). It has no effect on other electronics on board.
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scrub your zincs with plastic scrubber or stainless steel brush to remove the film which develops. This film will reduce the effectiveness of your zincs drastically. Do not use a brush or scrubber made of any other metal as it will contaminate your zincs. Your downrigger weights should be pure lead, as impurities can produce a negative charge.
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(ie monel) Installing Your Black Box Your Black Box should be mounted in a dry location, as it is water resisitant but not waterproof. You can mount it either a vertical or horizontal surface and can...
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Drop the downrigger to fishing depth or at least a few feet under the surface. With the knob still in the off position, read the green marker on the Black Box to get the line's natural voltage. If the natural voltage is not what you want, turn the...
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You will note the reading will change back and forth. Turn the knob to the desired set point. To get the digital Black Box out of the pulsing mode, turn it off entirely for at least ten seconds. When you turn it back on, it will go into the normal operating mode.
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Black Box Fishing Tips Resist the temptation to turn the Black Box up to a higher voltage if you are not getting strikes. It is actually better to reduce the natural electrolysis voltage. You have the Black Box too high if hooked fish fight violently or try to swim under the boat when brought near the hull.
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