8b10b encoding begins when an input running disparity is received. A two-way pre-bite fishing line tensioning mechanism utilizing a frictional tensioning screw together with the leverage gained by a thin elongated flat rotatable truncated U-shaped tensioning lever-alarm activation member to control an electrical switch member to release the fishing line and emit an auditory-visual signal upon a fish taking bait attached to the fishing line. The resulting porphyrin-based photosensitizer absorbs two photons of radiation in the range of about 700 nm to about 1300 nm. A processor is adapted to reconfigure the reconfigurable antenna and couple the wireless transceiver thereto via the plurality of switches. Preferably, for pushing in or pulling out the retention pin a link-type guide is provided at its end pointing away from the end engaging the recess whereby if necessary, the retention pin in its pushed-in position can be locked down.