This 21dB antenna is designed to be used in conjuntion with an RF system (SDR, filter & LNA) to provide detailed, high-resolution, near real-time images from orbiting weather satellites. Applications include GOES (HRIT & LRIT), NOAA HRPT, Meteor M2 HRPT, Metop, FengYun and other satellites that operate near 1.6GHz-1.8GHz Can be deployed for both linearly and circularly polarized signals (RHCP and LHCP) Software is required for the decoding of images. The recommended option is SatDump, which is cross-platform and available for Windows, Linux, MacOS and Android. There are also other free Linux-based decoders, or the paid version of XRIT Decoder for Windows (license not included with purchase) Full support and service directly through Nooelec! Additional information and assembly instructions: support.nooelec.com/hc/en-us/articles/360058812593 The included antenna is a high-performance L-Band GOES weather satellite parabolic antenna. It has a gain of ~21dBi and an LMR400 cable terminated with male SMA connectors to connect to your gear. The antenna is linearly polarized (vertical or horizontal depending on the mounting), with an electric field aligned with the main reflector and feed-point grid lines. It can be deployed for both linearly and circularly polarized signals (RHCP and LHCP). Assembled antenna dimensions are 0.99m x 0.61m x 0.38m (39" x 24" x 15"). It weighs about 2kg (70.5oz). Our GOES antenna performs highly effectively when paired with the SAWbird+ GOES LNA module (NOT included) This antenna receives GOES broadcasts with ease due to its fairly confined radiation pattern, without the necessity of highly accurate pointing at the target satellite, as it features a 3dB beam width of 15deg (+/- 7.5deg) on the axis parallel to the main reflector and feed-point grid lines, and 10deg (+/- 5deg) on the orthogonal axis. It is recommended to mount the antenna on a pole of not more than 5cm (2") in diameter, and would perform equally well when mounted vertically or horizontally. Full service and support directly through Nooelec! Additional information and assembly instructions: support.nooelec.com/hc/en-us/articles/360058812593