A transceiver in a full duplex communication system includes a hybrid
circuit for transmitting a transmission signal or receiving a receive
signal via the channel, the hybrid circuit includes an echo cancellation
device for removing transmission signal components from the receive
signal; wherein the hybrid circuit outputs a processed receive signal;
and a gain amplifier being an OP-RC AGC is directly connected to the
hybrid circuit for amplifying the processed receive signal, wherein a
first node of the gain amplifier coupled to the echo cancellation device
is a virtual ground.