1. 403-430 18.5 32 30 25 200 67.5 38 39.5 6.4 160 100 75 Operating Frequency (VSWR ≤ 1.5) MHz Nominal Gain (dBi) Horizontal Beamwidth (Deg-3dB) Vertical Beamwidth (Deg-3dB) Front To Back Ratio (dB) Power Rating (W) Length (inches) Height (inches) Antenna Weight (lbs.) Cross Sectional Area (Max. Ft²) Lateral Thrust at 100mph (lbs.) Rated Wind Velocity (mph) Rated Wind Velocity with 1/2’’ radial ice (mph) ANTENNA SPECIFICATIONS ThePROGRID403-18-N4 is designed to meet the demanding requirements of aprofessional grade, half parabolic antenna . This antenna provides18.6 dBi gain across the operating range of 403-430 MHz with a VSWR of 1.5:1 or less. This rugged unit is manufactured using only high strength 6061 T6 aluminum; all grid components are fully welded to ensure continuous optimum performance in the most severe operating conditions. The grid is shipped fully assembled. The directive feed element is easily installed and permits either Vertical or Horizontal polarization. (A selection of tuned feed elements is available, providing a choice of different operating frequencies utilizing the common grid. Contact Sales for your specific application requirements) The design incorporates a 5’ integral feed cable allowing ease of installation and ensuring long-term dependability. The antenna is black anodized to protect against environmental degradation. 403-430 MHz PROGRID403-18 PROGRID403-18 is equipped with a standard feed line length of 5’ LMR400 UltraFlex cable and N-Female connector. Please contact our sales staff for alternate connector requirements. Includes mounting brackets C1013 (2 included)