A vaporizer having a pair of heat exchanger blocks each with a vaporization tube formed therein. The satellite radio preferably has a microcomputer with a reception determining section and a sound volume controlling section. The interleaving and de-interleaving solutions of the present invention have low implementation complexity, and high capacity of correcting a burst bit error. The existence of a tunnel is revealed by the return of acoustic frequency difference heterodynes all coming from a more-or-less horizontal line of phase-delayed sources and directions. The optical transports are then dropped into the aligned cavities of the ferrule and jig through the open sides of the ferrule and jig so that the front ends of the optical transports sit at least partially in the V-shaped grooves of the jig, thereby aligning the transports in the transverse dimension.