GLOSSARY

TWEETER

Speaker for the reproduction of high frequency sounds

WOOFER

Speaker for the reproduction of low frequency sounds

NEODYMIUM

Chemical element of the lanthanide family, symbol ND, atomic number 60, atomic weight 144.24

Found naturally mixed with other metals (max 18%) like lanthanide, cerium, etc.

Used to colour glass (violet) and, in particular for its properties as a permanent magnet in the compound Nd2Fe14B.

RDS (RADIO DATA SYTEM)

Radiodiffusion system for data in conjuction with FM broadcasting station radio signals

AF (ALTERNATIVE FREQUENCY)

Function for RDS broadcasters: automatic switching from one frequency to another with better reception

TP (TRAFFIC PROGRAM)

Specific signal from an RDS broadcaster transmitting traffic news