Television interference associated with the proposed class E 220 MHz Citizens Radio Service

One of the major factors contributing to the delay in FCC approval of the proposed 220 MHz Class E Citizens Radio Service has been the television interference issue. This paper analyzes the extent of TVI due to transmitter operation at 222 to 225 MHz. Three approaches are used in the analysis -- theoretical, experimental, and empirical. A "radius of interference" is obtained from each approach. Methods of reducing the interference realized are briefly considered.