Mobile phone base stations built near residential buildings a threat to radio amateur

In mobile telecommunication, radio frequency waves that are used to carry the intelligence of cellular telephone calls is actually the electromagnetic energy transmitted through space. A radio amateur that is located near to the mobile telephone base station receives much more electromagnetic energy that can adversely affect signal reception hence causing interference. This paper presents a case study in China (Wuhan) that investigates the effect of electromagnetic radiation on a radio amateur due to base stations built on top of or near residential buildings. The path from the base station transmitter through the air was examined and later linked to the electromagnetic field theory to build models of different paths for interfering signals which were sustained by simulation. The conditions determining the risk of interference were considered. The main purpose of this paper is to study the existing standards such as EMC-directive with regard to radio amateurs and to disseminate EMC education about the mobile base stations.