A first-transceiver system (202a, 302) for use in an antenna diversity scheme (200, 300), the first-transceiver system comprising: a third-party-transmitter remote from the antenna diversity scheme (200, 300) configured to transmit a wireless first-common-signal (204a, 320a); a first-time/clock-generation-unit; a first-receiver, configured to receive the wireless first-common-signal (204a, 320a) from the third-party-transmitter remote from the antenna diversity scheme (200, 300), wherein the first-common-signal is representative of a common-signal transmitted by the third-party-transmitter; and a first-transmitter; and a timing-controller, configured to: receive signalling representative of the first-common-signal (204a, 320a); receive signalling representative of a wireless second-common-signal (204b, 320b) as received at a second-transceiver system (202b, 304) of the antenna diversity scheme (200, 300), the second-transceiver system comprising a second-time/clock-generation-unit, the wireless second-common-signal being representative of the common-signal transmitted by the third-party-transmitter; generate a timing-signal based on the first-common-signal (204a, 320a) and the second-common-signal (204b, 320b), wherein: the first-transceiver system (202a, 302) is configured to set the first-time/clock-generation-unit, based on the timing-signal, to reduce an alignment-error between the first-time/clock-generation-unit and the second-time/clock-generation-unit; the first-transmitter is configured to transmit a wireless first-transmission-signal, in accordance with the first-time/clock-generation-unit, as part of the antenna diversity scheme (200, 300), wherein: the first-transmission-signal corresponds to a second-transmission-signal that is transmitted by the second-transceiver system (202b, 304); and the antenna diversity scheme (200, 300) comprises aligned transmission of both the first-transmission-signal and the second-transmission-signal. a third-party-transmitter remote from the antenna diversity scheme (200, 300) configured to transmit a wireless first-common-signal (204a, 320a); a first-time/clock-generation-unit; a first-receiver, configured to receive the wireless first-common-signal (204a, 320a) from the third-party-transmitter remote from the antenna diversity scheme (200, 300), wherein the first-common-signal is representative of a common-signal transmitted by the third-party-transmitter; and a first-transmitter; and a timing-controller, configured to: receive signalling representative of the first-common-signal (204a, 320a); receive signalling representative of a wireless second-common-signal (204b, 320b) as received at a second-transceiver system (202b, 304) of the antenna diversity scheme (200, 300), the second-transceiver system comprising a second-time/clock-generation-unit, the wireless second-common-signal being representative of the common-signal transmitted by the third-party-transmitter; generate a timing-signal based on the first-common-signal (204a, 320a) and the second-common-signal (204b, 320b), receive signalling representative of the first-common-signal (204a, 320a); receive signalling representative of a wireless second-common-signal (204b, 320b) as received at a second-transceiver system (202b, 304) of the antenna diversity scheme (200, 300), the second-transceiver system comprising a second-time/clock-generation-unit, the wireless second-common-signal being representative of the common-signal transmitted by the third-party-transmitter; generate a timing-signal based on the first-common-signal (204a, 320a) and the second-common-signal (204b, 320b), wherein: the first-transceiver system (202a, 302) is configured to set the first-time/clock-generation-unit, based on the timing-signal, to reduce an alignment-error between the first-time/clock-generation-unit and the second-time/clock-generation-unit; the first-transmitter is configured to transmit a wireless first-transmission-signal, in accordance with the first-time/clock-generation-unit, as part of the antenna diversity scheme (200, 300), wherein: the first-transmission-signal corresponds to a second-transmission-signal that is transmitted by the second-transceiver system (202b, 304); and the antenna diversity scheme (200, 300) comprises aligned transmission of both the first-transmission-signal and the second-transmission-signal. the first-transceiver system (202a, 302) is configured to set the first-time/clock-generation-unit, based on the timing-signal, to reduce an alignment-error between the first-time/clock-generation-unit and the second-time/clock-generation-unit; the first-transmitter is configured to transmit a wireless first-transmission-signal, in accordance with the first-time/clock-generation-unit, as part of the antenna diversity scheme (200, 300), wherein: the first-transmission-signal corresponds to a second-transmission-signal that is transmitted by the second-transceiver system (202b, 304); and the antenna diversity scheme (200, 300) comprises aligned transmission of both the first-transmission-signal and the second-transmission-signal. the first-transmission-signal corresponds to a second-transmission-signal that is transmitted by the second-transceiver system (202b, 304); and the antenna diversity scheme (200, 300) comprises aligned transmission of both the first-transmission-signal and the second-transmission-signal.