The biggest feature of sky-wave radar is the huge transmitting and receiving antenna array. The transmitting antenna is nearly a kilometer long and the receiving antenna is several kilometers long. The ratio of transmitting antenna to receiving antenna of American AN/FPS- 1 18 radar is about 1: 2. Such a huge antenna array occupies a large area and is generally deployed in the mainland to ensure safety.

According to the information collected so far, the transmitter and receiver of the brigade are located in ZY and New Zealand respectively, but I haven't figured out which one is transmitting and which one is receiving. Generally speaking, the launching position is large. The receiving position is arranged after the transmitting position, so it scatters back.

I saw the Ministry appear in many places along the coast. At first I didn't understand what was going on. Radar is not very easy to understand, so I have to read the book again. According to the book, the sky wave radar uses the emission of the ionosphere, and the parameters of the ionosphere are changing, so it is necessary to arrange the ionosphere detection station-the ionosphere vertical observation station (vertical observation station), which is several hundred kilometers away from the radar. So, I see.