See flutter.

Synonym field strength.

1. The locating of a radio transmitter by bearings taken from two or more direction finding stations, the site of the transmitter being at the point of intersection. [JP 1-02]
2. The location of a ship or aircraft by determining the direction of radio signals coming to the ship or aircraft from two or more sending stations, the locations of… (Read More →)

See RF.

See frequency assignment.

Synonym frequency assignment.

Typically this term is used with RFID tags, where RFID tag data contains product identification.

Synonym electromagnetic interference.

The locus of points at which direct rays from an antenna are tangential to the surface of the Earth.
Note: If the Earth were a perfect sphere and there were no atmospheric anomalies, the radio horizon would be a circle. In practice, the distance to the radio horizon is affected by the height of the transmitting antenna, the height of… (Read More →)

1. The distance at which a direct radio wave can reach a receiving antenna of given height from a transmitting antenna of given height.
Note: The radio horizon range in nautical miles, R, is given by the relation R =
1. 23(ht1/2 + hr1/2), where ht and hr are the heights of the transmitting and receiving antennas in feet. The… (Read More →)