Abstract: An importer-exporter includes a processor, a network interface coupled to the processor and configured to communicate with an external device via a communications network, and memory coupled to the processor. The memory stores a program of instructions, wherein executing the program of instructions configures the processor to receive, from an external device via the network interface, a request to insert media content into a broadcast payload, and to determine whether the external device is authorized to provide the media content for insertion into the broadcast payload. In response to determining that the external device is authorized, the program of instructions configures the processor to login the external device to the importer-exporter, receive the media content from the external device, and insert the media content into the broadcast payload.

Abstract: An importer-exporter includes at least a first interface that receives channel packets and a stream of emergency action signal (EAS) packets. The channel packets include channel content for multiple media channels, and the stream of EAS packets include first EAS notification content from a first EAS encoder. The first EAS notification content is associated with one or more particular media channels. A processor and associated memory are configured to implement a switching module that includes a login module and a multiplexer. The login module monitors the stream of EAS packets, and selects either channel content or first notification content for inclusion in broadcasts of each of the media channels based on the monitored stream of EAS packets. Thea multiplexer transmits the content selected by the login module for inclusion in the broadcasts of each of the plurality of media channels.

Abstract: An importer-exporter includes at least a first interface that receives channel packets and a stream of emergency action signal (EAS) packets. The channel packets include channel content for multiple media channels, and the stream of EAS packets include first EAS notification content from a first EAS encoder. The first EAS notification content is associated with one or more particular media channels. A processor and associated memory are configured to implement a switching module that includes a login module and a multiplexer. The login module monitors the stream of EAS packets, and selects either channel content or first notification content for inclusion in broadcasts of each of the media channels based on the monitored stream of EAS packets. Thea multiplexer transmits the content selected by the login module for inclusion in the broadcasts of each of the plurality of media channels.

Abstract: A switching module transmits channel content to a transport encoder. The switching module receives notification content associated with an emergency action system (EAS) message, and transmits the notification content to the transport encoder in place of the channel content.

Abstract: A switching module transmits channel content to a transport encoder. The switching module receives notification content associated with an emergency action system (EAS) message, and transmits the notification content to the transport encoder in place of the channel content.

Abstract: During normal operation, a switching module receives, from one or more media encoders, channel content associated with one or more media channels and transmits that channel content to a transmitter. The switching module, while transmitting the channel content, logs in a notification system in response to a login request received from the notification system. Once logged in, the notification system transmits content associated with the one or more media channels to the switching module. The switching module transmits the notification content to the transmitter in place of the channel content received from the media encoders. While transmitting the notification content, the switching module determines that the notification system has been logged out, and resumes transmission of the channel content to the transmitter.

Abstract: A system includes a processor configured to determine that transmission data indicates that first data was transmitted via a digital radio channel and that reception data indicates that second data was received via the digital radio channel. The first data is transmitted concurrently with transmission of an analog signal. The processor is configured to detect an error in transmission of the first data based on a comparison of adjacent portions of the first data to non-adjacent portions of the second data. The processor is configured to, in response to detecting the error, initiate display of a default image concurrently with output of an audio signal that is based on the analog signal and to initiate retransmission of the first data to cause second particular data to be output subsequent to the output of the default image. The second particular data corresponds to the retransmitted first data.

Abstract: During normal operation, a switching module receives, from one or more media encoders, channel content associated with one or more media channels and transmits that channel content to a transmitter. The switching module, while transmitting the channel content, logs in a notification system in response to a login request received from the notification system. Once logged in, the notification system transmits content associated with the one or more media channels to the switching module. The switching module transmits the notification content to the transmitter in place of the channel content received from the media encoders. While transmitting the notification content, the switching module determines that the notification system has been logged out, and resumes transmission of the channel content to the transmitter.

Abstract: A system includes a processor configured to determine that transmission data indicates that first data was transmitted via a digital radio channel and that reception data indicates that second data was received via the digital radio channel. The first data is transmitted concurrently with transmission of an analog signal. The processor is configured to detect an error in transmission of the first data based on a comparison of adjacent portions of the first data to non-adjacent portions of the second data. The processor is configured to, in response to detecting the error, initiate display of a default image concurrently with output of an audio signal that is based on the analog signal and to initiate retransmission of the first data to cause second particular data to be output subsequent to the output of the default image. The second particular data corresponds to the retransmitted first data.

Abstract: A method includes determining, at a device, that transmission data indicates that first data was transmitted via a digital radio channel. The method also includes determining, at the device, that reception data indicates that second data was received via the digital radio channel. The first data has a first size that is less than a second size of the second data. The method also includes determining, at the device, whether an error occurred in transmission of the first data based on determining whether each of a plurality of portions of the first data is included at least once in the second data. Other aspects are also disclosed.

Abstract: A method includes determining, at a device, that transmission data indicates that first data was transmitted via a digital radio channel. The method also includes determining, at the device, that reception data indicates that second data was received via the digital radio channel. The first data has a first size that is less than a second size of the second data. The method also includes determining, at the device, whether an error occurred in transmission of the first data based on determining whether each of a plurality of portions of the first data is included at least once in the second data. Other aspects are also disclosed.