TCI International, Inc. products

The Evenlode Ground Data System is a modular system that complements the Evenlode Series of Airborne Data Terminals. The GDS is based on a half width 19” rack system that provides ground based equipment from test transmitters and receivers through to long range bidirectional tracking antenna fixed base stations.

Because of seasonal and diurnal variations of the ionosphere, shortwave broadcasters have found it necessary to change frequencies at regular intervals. Frequency changes can be simplified with the use of wideband, frequency-independent antennas. The Model 515 and 516 high-power log-periodic antennas are well suited for this application.