A signal generator is basically an electronic device, which is used to produce electrical impulses. These devices are usually used in testing, troubleshooting, and repairing various electronic devices. Moreover, they can also be used for artistic applications. There are a number of different types of signal generators, depending upon their intended uses and features. Considering the fact that they have so many applications, no single generator is suited to each and every purpose. Signal generators, generally, have two major categories: arbitrary waveform generators, and function generators.
Function generators are considered to be the simpler of the two types. They simply generate repetitive signals in the form of a wave. The signal is generated by a circuit that creates the repeating wave, such as a sine wave. A function generator is normally used in the procedure of designing and repairing basic electronic items and devices. They are used to send a signal through the specific circuit, which is being tested and inspected. Most often, another device, known as oscilloscope, is to be connected to the other end of the circuit to determine its output. Due to a number of different ways in which electronic devices operate, a lot of different types of function generators are available that vary in accuracy, frequency range, and other vital parameters.
Arbitrary waveform generators generate waves that can be in many different forms, and that is the reason why they are referred to as AWGs. This kind of signal generator can produce waves in square, triangular, pulse, or saw tooth form. Arbitrary waveform generators are fairly expensive, and are thus confined to the advanced testing and design applications.
Before the introduction of signal generators, like in the early days of radio, the only technique available to test new equipment and formats was to make use of another similar device to produce the signal. Same was the case with modulation formats and new equipment in radio. The performance parameters of one radio were measured, and then used as the standard for other devices.
This technique had a number of benefits, the most prominent of which was its low cost. However, the one major drawback to that technique was the fact that the radio’s performance could drift over time, making it an unreliable tool to test new equipment. A modern and versatile signal generator is efficient enough to cater to the more specific and accurate operations of electronics testing and design.
With that said, in order to ensure precise and accurate testing of the broadcasting and communication equipment, the presence of an efficient signal generator is mandatory. With the help of an advanced and reliable signal generator, your job will become a lot easier and convenient. The most common types of signal generators include noise generators, microwave signal generators, and radio signal generator. You need to review important details about these generators before you decide to actually go and buy them.