A method for detection of signal quality problems and errors in digital radio broadcast signals, the digital radio broadcast signals being transmitted by multiple different radio stations having different over-the-air coverage areas, the method comprising: receiving, using first monitoring equipment located in an over-the-air coverage area of a first radio station, a digital radio broadcast signal via digital radio broadcast transmission from the first radio station; receiving, using second monitoring equipment located in an over-the-air coverage area of a second radio station, a digital radio broadcast signal via digital radio broadcast transmission from the second radio station, wherein the over-the-air coverage areas of the first and second radio stations are different; receiving data from the first monitoring equipment and the second monitoring equipment, the data being indicative of one or more attributes of a digital radio broadcast signal received at respective monitoring equipment; and analyzing in real-time or near real-time the received data from the first and second monitoring equipment to detect a signal quality problem or error in the digital radio broadcast signals received at the first and second monitoring equipment, wherein the received data is indicative of one or more fields of data included in a digital radio broadcast signal received at respective monitoring equipment, wherein, when a signal quality problem or error in the digital radio broadcast signals is detected in the data received from one of the first and second monitoring equipment, or notified by a third party for the first or the second radio station, additional data related to the problem or error is requested from the respective monitoring equipment, and characterized in that data allowing to determine if a similar signal quality problem or error in the digital radio broadcast signals exists is requested from the other of the first and second monitoring equipment. receiving, using first monitoring equipment located in an over-the-air coverage area of a first radio station, a digital radio broadcast signal via digital radio broadcast transmission from the first radio station; receiving, using second monitoring equipment located in an over-the-air coverage area of a second radio station, a digital radio broadcast signal via digital radio broadcast transmission from the second radio station, wherein the over-the-air coverage areas of the first and second radio stations are different; receiving data from the first monitoring equipment and the second monitoring equipment, the data being indicative of one or more attributes of a digital radio broadcast signal received at respective monitoring equipment; and analyzing in real-time or near real-time the received data from the first and second monitoring equipment to detect a signal quality problem or error in the digital radio broadcast signals received at the first and second monitoring equipment, wherein the received data is indicative of one or more fields of data included in a digital radio broadcast signal received at respective monitoring equipment, wherein, when a signal quality problem or error in the digital radio broadcast signals is detected in the data received from one of the first and second monitoring equipment, or notified by a third party for the first or the second radio station, additional data related to the problem or error is requested from the respective monitoring equipment, and characterized in that data allowing to determine if a similar signal quality problem or error in the digital radio broadcast signals exists is requested from the other of the first and second monitoring equipment.