The Electro-Magnetic Compatibility Of Several Sets Of The Transceivers Equipped In The Same Vehicle In The Co-site Mode

This article has described the concept of designing and applying the HF self-adaptive interference inverter as well as adopting the other electro-magnetic compatibility measures so that several sets of the vehicle-borne transceivers equipped in the same vehicle can be operated together in the co-site mode in the very good electro-magnetic environment. In the case of designing and developing the interference inverter, shield, filtration, grounding and circuit design and other measures, the limited frequency resource has fully been utilized. The pollution of the broadband spectrum in the frequency-hopping operating state of the HF transceiver has been decreased. The problem of the electro-magnetic interference has been solved when several sets of the transceivers are together operated in the co-site environment condition in the same vehicle so that the transceivers have realized the duplex communication on the nearby channels of the transceivers.After the HF self-adaptive interference inverter has been adopted, the RX/TX frequency space can be greatly reduced and the duplex communication has been realized as well as the frequency resource has been fully utilized. The communication quality has been greatly improved. And the connection among the transceivers has become simple and easy.The description of the interference inverter that is used in the HF frequency-hopping communication has not been reported yet in our country so that it has filled the blank in this field in our country. It may be considered that the technique and technology of this product belong to the leading level in our country and may also belong to the advanced level in the world.