How the Positive Ion Control System Works
The PIC system uses an internal circuit that passes the voltage through the drive train of the Digi-Troll to the shaft. The
shaft contacts the cable by means of a ball bearing, spring and, lastly, a one direction button head screw. Care must be
taken to ensure contact between the cable and the screw when replacing the cable. When using coated cable, 3-4 ft of
coating must be striped when terminating the cable to reel. Take care in ensuring that the striped portion is in contact with
the button head screw.
The Positive Ion Control system applies a variable 0.2 to 1.2 volts on the trolling cable at all times.
Measuring the Natural Electrolysis and PIC Voltage on your boat
A voltmeter with a scale of zero to one volt will measure the natural electrolysis. Place the ground lead of the meter on
the motor or the battery ground. Place the positive lead on the stainless steel downrigger cable while it is in the water. The
downrigger must be unplugged. The voltage you measure on the volt meter is your boat’s natural electrolysis voltage. Use
the same set up to measure the PIC voltage; just plug in the Digi-Troll and adjust the PIC voltage desired.
Using Positive Ion Control
Positive Ion Control is very effective when trolling. The zone of attraction created at the downrigger wire will attract the
fi sh. It is best to use a short drop back between the downrigger release and the lure. Drop backs of 10 to 20 ft. are typical.
A drop back of 50 to 100 ft. will entirely negate the effects of the PIC circuit. Fishing depths greater than 125 ft. may
require a slightly higher PIC voltage. If you return to shallow water fi shing remember to turn the PIC voltage down again.
The correct PIC setting for best fi shing advantage varies, depending on fi sh type and location. To fully benefi t from PIC
technology, it is important that you experiment with the PIC setting to fi nd the proper voltage for the gamefi sh in the area.
OPERATING THE DOWNRIGGER
