The invention discloses a
satellite time serving all-in-one
machine and time serving method thereof. The remote end and the close end of a
satellite for serving time are integrated into a
whole body and interact a differential
signal with time-served devices through cables; as the
reliable transmission distance of the differential
signal is larger than that of a single-end electric characteristicsignal, the effective transmission of a
timing mark signal and
time information can be guaranteed even if the transmission distance of the cables between the time-served devices is more than 10m; meanwhile, the
timing mark signal error caused by the expansion of the transmission distance can be reduced through measuring time
delay of the cables and correcting the time
delay of the
timing mark signal according to the measuring result, therefore, the timing mark signal can be guaranteed to be transmitted accurately; and moreover, as the remote end and the close end are integrated into a
whole body, various problems caused by that the length of
radio frequency cables between the remote end and the close end exceeds 100m are solved. Therefore, the invention can simultaneously guarantee the convenience for
engineering installation and the time serving reliability.