The M2 400-800-8 Helix antenna offers performance characteristics for specialized fixed and rapid deploy operations within the 400 to 800 MHz band. It is perfect for either terrestrial or satellite applications. The antenna is shipped with the helix assembled less ground plane. Finishes are optional. Optional arrays of 2 or more are available. Other frequency ranges and gains are also available down to 100 MHz. Complete motorized, computer controlled AZ-EL systems are also manufactured by M2. Where circular polarity is not required but high bandwidth is, M2 offers a line of various log periodic antennas from 5 to 1300 MHz. If it is antenna related, we probably have made it. Call us with your requirements.