These receivers can use the signals from three or more satellites to triangulate your position on the ground.

It doesn't matter where these spares go, so long as the sender and receiver use the same system.

The receiver uses messages received from satellites to determine the satellite positions and time sent.

In other words, there is only one value for the "current time" that the receiver can use.

Communication is more effective when both the sender and receiver use the same frames of reference.

This version is the one that the current receivers use and the majority implement the second profile.

Then, the receiver will use the same key in the opposite way to reveal the message.

Small receiver used by the Secret Service agents to communicate with one another.

This allows central receivers to quickly use their feet to score a goal.

There is a new wrinkle the Bengals' receivers used this year.