That antenna system is generally not available, and it is useless to buy it. If it should be available, it should be free. (1) is specially made by SARFT and CCTV for people who can't see TV in remote mountainous areas; (2) If someone sells it, you can't open it if you take it back. You should report it to the person who has the right to open it. That's the third generation machine of Secondary Nine; (3) If there is no cable TV coverage or coverage, you can apply to the local county-level radio and television department. He will send you a set, including antenna, tuner, feeder, satellite receiver and fishbone antenna. You can watch more than 50 sets of central and provincial satellite TV on the ninth satellite, plus about 10 sets of local programs. He will also send someone to help you install and debug!