A remote antenna system comprising: an antenna controller circuit ; and a remote antenna circuit coupled to the antenna controller circuit by a cable ; the remote antenna system comprising: a bidirectional data signal path for carrying transmit and received data signals between the antenna controller circuit and the remote antenna circuit; and a control path for carrying control information between the antenna controller circuit and the remote antenna circuit; wherein the control path is a bidirectional control path comprising: a transmit circuit comprising an input to receive control information and configured to convert the control information into a series of pulses; and a receive circuit comprising: a comparator circuit configure to receive the series of pulses and reconstruct them to the control signal, wherein the control path is configured to operate: in a first direction from the remote antenna controller circuit to the remote antenna circuit and the control information carried in the first direction comprises a transmit state signal indicating whether the remote antenna is to transmit the data signal or receive the data signal, and in a second direction from the remote antenna circuit to the remote antenna controller circuit and the control information carried in the second direction comprises a measured power signal corresponding to a transmit power of the remote antenna. an antenna controller circuit ; and a remote antenna circuit coupled to the antenna controller circuit by a cable ; a bidirectional data signal path for carrying transmit and received data signals between the antenna controller circuit and the remote antenna circuit; and a control path for carrying control information between the antenna controller circuit and the remote antenna circuit; wherein the control path is a bidirectional control path comprising: a transmit circuit comprising an input to receive control information and configured to convert the control information into a series of pulses; and a receive circuit comprising: a comparator circuit configure to receive the series of pulses and reconstruct them to the control signal, a transmit circuit comprising an input to receive control information and configured to convert the control information into a series of pulses; and a receive circuit comprising: a comparator circuit configure to receive the series of pulses and reconstruct them to the control signal, wherein the control path is configured to operate: in a first direction from the remote antenna controller circuit to the remote antenna circuit and the control information carried in the first direction comprises a transmit state signal indicating whether the remote antenna is to transmit the data signal or receive the data signal, and in a second direction from the remote antenna circuit to the remote antenna controller circuit and the control information carried in the second direction comprises a measured power signal corresponding to a transmit power of the remote antenna. in a first direction from the remote antenna controller circuit to the remote antenna circuit and the control information carried in the first direction comprises a transmit state signal indicating whether the remote antenna is to transmit the data signal or receive the data signal, and in a second direction from the remote antenna circuit to the remote antenna controller circuit and the control information carried in the second direction comprises a measured power signal corresponding to a transmit power of the remote antenna. <EOS>