Aircraft radio with improved standby performance

An aircraft radio comprising:

• a receiver configured to be tuned to a first radio frequency and a second radio frequency, the first radio frequency providing a first audio signal and the second radio frequency providing a second audio signal;
• an audio output configured to output an audio signal to a listening device;
• and
• a processing element coupled to a memory element, the processing element configured to tune the receiver to the first radio frequency for a first time period,
• present the first audio signal to the audio output during the first time period,
• tune the receiver to the second radio frequency and present audio derived from the first audio signal to the audio output during a second time period,
• check for the presence of the second audio signal, and
• present the second audio signal to the audio output if the second audio signal is present, or
• tune the receiver to the first radio frequency and present the first audio signal to the audio output at the end of a second period of time if the second audio signal is not present.

An aircraft radio comprising:

• a receiver configured to be tuned to a first radio frequency and a second radio frequency, the first radio frequency providing a first audio signal and the second radio frequency providing a second audio signal;
• an audio output configured to output an audio signal;
• and
• a processing element coupled to a memory element, the processing element configured to tune the receiver to the first radio frequency for a first time period,
• present the first audio signal to the audio output during the first time period,
• record a portion of the first audio signal received during the first time period in the memory element,
• tune the receiver to the second radio frequency and present the recorded audio to the audio output during a second time period,
• check for the presence of the second audio signal, and
• present the second audio signal to the audio output if the second audio signal is present, or
• tune the receiver to the first radio frequency and present the first audio signal to the audio output at the end of a second period of time if the second audio signal is not present.