0-9 | A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z
A signal sent in the direction from the calling to the called station, i.e. , from the original data source to the original data sink. Note: The forward signal is transmitted in the forward channel.