MES 64927 SDN series Parabolic Dish Antennas provide coverage in ISM band of 4900-5000 MHz frequencies with a VSWR performance of less than 1.5:1.These are suitable for long range operation and can be configured for either horizontal or vertical polarization. The reflector dish of these antennas is constructed from high quality aluminum which gives them superior strength. The dish is coated in a light gray UV-inhibited polymer for durability and aesthetics.