Knowledge Base

Large bodies of water, especially when calm conditions are present, act as large mirrors, where electromagnetic waves are reflected and added to the desired receiving signals. In the old analog world, the reflections provoked what were called "ghost" images, in which there seemed to be a delayed replica of the image in the screen. In digital reception, this effect produces fading and, in some cases, severe impairments (pixilation) and, due to the "all or nothing" nature of the digital signals, finally a black screen comes up. To overcome this, our recommendation for this kind of reception path is to use an antenna with high directivity, that rejects mirroring or reflected signals outside the main lobe to avoid fading.