In digital communications, a digit is either a one or a zero, or an "on" or an "off" signal. The wave shape that is composed of "on's and off's" is the square wave.
What one needs is a bit of hardware circuitry called a Analogue to Digital Converter (ADC). These work by sampling the analogue electrical waveform.
There are settings for AC and DC voltages. If they are not marked as such, the DC setting might be parallel lines and the AC marking may be a cycle of a sine wave (Wavy line).
A cathode ray oscilloscope (CRO) is used to see the waveform of a repetitive electronic signal. The signal is amplified or attenuated as required and used to deflect an electron beam in the vertical direction. This electron beam is deflected in the horizontal direction at a suitable speed. The electron beam impinging on a phosphorescent screen enables the viewer to see the wave shape of the signal. The operation is similar to that of a TV.
This is hard to explain. AM means amplitude modulation, while ASK is amplitude-shift keying. AM is usually analog as it is modulated based on the strength of the signal, though you can use it to send a digital signal. ASK represents digital data as variations in the amplitude of a carrier wave. Any digital modulation technique will represent the data using a finite number of different signals. While AM is used mostly for radio and television, ASK is used for telegraph signals, transmission across telecommunications equipment, and fiber optics.
we can use monostable multivibrator.But generally its o/p is a square wave so to get a pulse type waveform,we may use differentiator after monostable multivibrator....
micro wave is used in cell phone communication.
Sky wave propagation is used in long-distance radio communications. It is commonly used for broadcasting, military communications, and amateur radio operations. Sky wave propagation allows signals to be transmitted over long distances without the need for expensive infrastructure.
Communications Satellites ************************ Electro-magnetic waves. Carrier waves.
The term used in seismology is the S-wave.
radio wave
FM is, because it is less scrambled so you can receive the message easier
A: square wave can be positive and or negative. A digital signal is a square wave but it can be of invariable duty cycles
A digital wave is typically represented as a series of values plotted over time on a graph. It can take the form of a series of discrete values or a continuous waveform, depending on the nature of the digital signal being represented. Visual representations of digital waves can vary depending on the software or tool used to generate them.
See the related link below.
A laser generates an electromagnetic wave operating at light frequencies.
Wave propagation
be the answer is solar