What is RF Equipment
Radio Frequency (RF) equipment is a category of test instruments that can measure signals that has a higher frequency than that supported by general test equipment. This type of equipment are used by RF engineers and in addition to the normal measurement functionality they also have specialised functions to measure the characteristics of an RF signal.
What is a Spectrum Analsyer
A spectrum analyser might look like an oscilloscope to a casual observer, but there is one major difference. Both instruments measure the voltage of a fast-changing electronic signal, but they differ in the way they present it on a screen.
The oscilloscope will plot the voltage over time, meaning the Y axis will represent the voltage amplitude and the X axis will represent time. The 2D graph that an oscilloscope displays will show how the signal's voltage changes over time.
The spectrum analyser will plot the voltage over frequency, with the Y axis still representing voltage but the X axis representing frequency. This has the effect of displaying the different frequencies that is contained within a complex signal. If is signal is a pure sine wave it consists of only 1 frequency and the spectrum analyser will show this by plotting a single vertical line on the screen.
Also known as: SA
Also see: Oscilloscope
Also see Vector Network Analyser