Fix 2011 Antenna
The fixed Model 2011 antenna is designed for full UHF band reception from 470-862 MHz. Its gain is optimized between 14 to 16 dBi. Standard input impedance is 75 ohms with an F-Type female connector. Voltage Standing Wave Ratio VSWR is maintained below 1.8 across the operational band. The main body is constructed from 6063 alloy aluminum with anti-corrosion powder epoxy coating. Overall antenna length is 180 cm with a reflector width of 120 cm. Active elements are made from 6 mm diameter silver-plated copper rods. This antenna can receive DVB-T digital signals with a minimum signal level of -100 dBm. Mechanical resilience is verified for wind speeds up to 130 km/h. The operational temperature range is -30 to +70 degrees Celsius.
The antenna structure is a Yagi-Uda type with 20 elements, including a reflector, driven dipole, and directors. Impedance matching is achieved with an integrated 1:1 balun transformer. Reflectors and directors are made from solid aluminum tubes with a 10 mm diameter. The two-axis mounting bracket is constructed from 2.5 mm thick cold-galvanized steel. This bracket allows elevation adjustment from 0 to 90 degrees and 360-degree azimuth rotation. The antenna optionally includes a built-in LNA with a 1.8 dB noise figure and 20 dB gain. Final antenna weigh
