Receiver testing: noise, interferers, and channel simulation

Our daily activities rely on a wide range of RF receivers, such as cellular, Wi-Fi, and Bluetooth in our mobile phones, some with FM radio receivers. These are designed to achieve certain performance requirements and meet specifications relative to pristine signals. In reality, the only time an RF receiver will see an ideal signal is in the test lab. To ensure reliable operation, testing with nonideal signals is essential to characterization and verification of receiver performance and behavior.