Patent ID: 8701150

Claim:
A non-transitory computer-readable storage medium, comprising executable instructions which when executed by a processor cause the processor to perform operations comprising: monitoring a channel power of a target channel of a digital terrestrial television system, the target channel having an upper frequency and a lower frequency; monitoring band edge emissions for first and second channels, the first channel being an upper adjacent channel to the target channel and having a first band edge at the upper frequency, the second channel being a lower adjacent channel to the target channel and having a second band edge at the lower frequency; measuring a delta between the channel power and the band edge emissions, the delta representing a power quantity; determining an emission mask based on the delta, wherein the emission mask has a first limit within 0.5 MHz of the first band edge and a second limit within 0.5 MHz of the second band edge; detecting interference between the target channel and an adjacent channel based on the emission mask; and presenting an alarm based on the detected interference.