Transmit signal synchronization in two channels dedicated short range communications system

A method of operating a dedicated short range communications (DSRC) unit, the method comprising:

• communicatively coupling a DSRC radio to each of a first radio frequency transmitter and a second radio frequency transmitter;
• sending a first radio signal from the DSRC radio to the first radio frequency transmitter such that the first radio frequency transmitter transmits the first radio signal;
• sending a second radio signal from the DSRC to the second radio frequency transmitter such that the second radio frequency transmitter transmits the second radio signal;
• and
• producing a control signal that prevents the first radio frequency transmitter and the second radio frequency transmitter from transmitting their respective radio signals at any same point in time.

A dedicated short range communications (DSRC) unit, comprising:

• a first radio frequency transmitter;
• a second radio frequency transmitter;
• a first switch selectively interconnecting the first radio frequency transmitter and a first antenna;
• a second switch selectively interconnecting the second radio frequency transmitter and a second antenna;
• and
• a DSRC radio communicatively coupled to each of the first radio frequency transmitter and the second radio frequency transmitter, the DSRC radio being configured to:
• send a first radio signal to the first radio frequency transmitter such that the first radio frequency transmitter transmits the first radio signal;
• send a second radio signal to the second radio frequency transmitter such that the second radio frequency transmitter transmits the second radio signal;
• and
• produce a control signal received by and controlling the first switch and the second switch, the control signal allowing only one of the first radio frequency transmitter and the second radio frequency transmitter to transmit its respective radio signal to its respective antenna at any point in time.