Operational Characteristics of the TLM-18 Automatic Tracking Telemetry Antenna

A brief description of the TLM-18 antenna, including a block diagram, is followed by operational examples of its use in tracking missiles to the limits of radio line of sight. Present abilities of the antenna are discussed, and points are cited to show where these abilities exceed, in some aspects, requirements for missile tracking. It is shown that the location of the antenna and the type modulation of the missile can have adverse effects upon smooth operation.