A wireless network device in a wide area network is disclosed. A radio of the network device receives a plurality of communication signals. The device detects a signal to noise ratio value and/or a noise floor value and determines, for each frequency channel, when one of the detected signal to noise ratio value is less than a signal to noise ratio threshold value for a period of time and/or the detected noise floor value is greater than a noise floor threshold value for the period of time. The device transmits a jamming warning signal when one of the detected signal to noise ratio value for each of the channels is determined to be greater than the signal to noise ratio threshold value for the period of time and/or the detected noise floor value for each channel is greater than the noise floor threshold value for the period of time.