The effects of public safety mobile systems operations (in TV channels 63/68) on DTV and NTSC broadcasting

The issue of Public Safety (PS) in North America has become more crucial since the Digital Television (DTV) transition allotment plans were developed. Therefore, Canada has designated a modest amount of spectrum in Television broadcast channels 63 and 68 for PS use. As a result of this decision, Co-channel Interference (CCI) and Adjacent-Channel Interference (ACI) resulting from PS operation in channels 63/68 into and from surrounding NTSC or DTV service need to be considered. This paper discusses the impact that (CCI) and (ACI), produced by PS mobile system operation in channel 63/68, has on DTV and NTSC operating in and around channels 63/68.