DESCRIPTION

The Model 820C Antenna series is used as part of light weight C-Band tracking systems which can be installed in any large group of vehicles. The antenna is an opticalquartz loaded, cavity backed helix radiator which produces a right-hand circular polarized radiation pattern. The use of quartz material provides for high and low temperature stability with no degradation in electrical performance. Flush mounting is
normally used on reentry vehicles with no performance deterioration as a result of reentry heat. The low thermal conductivity of the quartz material limits heat transfer from the face of the antenna so that very little reentry heat is conducted to the
antenna connector. This permits the use of standard mating connectors.

Companion power dividers Models 853-2C, 854-3C and 855-4C are used for arraying two, three and four antennas about the missile, for X-Band operation a Model 830X-1 is
available.

FEATURES
• This series is part of light weight C-Band tracking systems.
• Optical-quartz loaded, cavitybacked helix radiator which produces a right-hand circular polarized radiation pattern.
• High (>1000°F) and low temperature (< -60°F) stability with no degradation in electrical performance.
• Uses standard mating connectors