what is modulation? Modulation is a technique of converting and mixing data into radio waves by adding this information to a carrier or base signal. This is accomplished by a modulator in which, mixes the data signal with a carrier signal. A carrier wave is a wave of constant frequency, like a sine wave. Tag someone who needs to see this! #Automation #modulation #PLC #Electricalengineering #radiowaves #Engineering #Industrialautomation #industry #RealPars #PLCprogramming #Software | RealPars