A transmitter for transmitting a signal including an interleaved symbol stream includes a convolutional interleaver including a plurality of delay portions, each of which is arranged to delay symbols from an uninterleaved symbol stream from an input to an output by a different amount, the delay portions being arranged in a sequence. An input selector inputs the symbols from the uninterleaved symbol stream to the delay portions so that successive symbols are input in accordance with the sequence of the delay portions. An output selector reads the symbols from the delay portions by successively selecting the symbols from the outputs of the delay portions in accordance with the sequence of the delay portions to form an interleaved symbol stream.