What is used to test and align various types of transmitters and receivers?

Signal generators are essential tools in testing and aligning various types of transmitters and receivers because they produce specific frequencies and signals that can be used to assess the performance of the devices under test. By supplying a known signal, technicians can evaluate how effectively the receiver captures and processes that signal, or how well a transmitter modulates and broadcasts it.

Signal generators can offer a wide range of frequencies and signal types, enabling the simulation of various real-world conditions that the transmitter or receiver might encounter. This makes them invaluable in alignment procedures where precise tuning is required to ensure optimal performance and adherence to specifications.

While frequency meters measure the frequency of signals, oscilloscopes visualize waveforms, and power meters quantify output power, none of these tools generates signals specifically designed for testing and aligning transmitters and receivers. Thus, signal generators stand out as the appropriate choice for this purpose.