MAC
MAC
People do not have the physical organs to detect microwaves.
the digital signal is converted to analog signal after using by transmitted antenna
When several signal transmitted simultaneously. this is called multiplexing of signals.many signal are combined into one and then they transmitted.
Modem (from modulator-demodulator) is a device that modulates an analog carrier signal to encode digital information, and also demodulates such a carrier signal to decode the transmitted information. The goal is to produce a signal that can be transmitted easily and decoded to reproduce the original digital data. That is the definition of Layer 1.
Information refers to data that has been processed and organized to convey meaning or knowledge, while a signal is a physical representation of information that is transmitted through a medium such as sound waves or electrical pulses. In other words, information is the content being communicated, while a signal is the form in which that information is transmitted.
Analog signals are transmitted as electrical waves.
Reflection of a transmitted signal is the basic premise of radar and sonar.
Yes, this is a true statement. A TV channel is most often characterized by the frequency of its transmitted signal.
Radio Waves
the signal goes out of sink due to refraction
by analog to digital,digital to analog signal