Provide (2) 150 words response with a minimum of 1 APA references for RESPONSES 1 AND 2 below. Response provided should further discuss the subject or provide more insight. To further understand the response, below is the discussion post that’s discusses the responses.
This week for chapter 2 we had to identify the two types of wireless transmissions methods and specific characteristics for both.
The two types of wireless transmissions:
When it comes to the passing of wireless data on the EMS spectrum, the two wireless transmissions we associate to the delivery is both infrared light and radio waves. (Olenewa, 44) Much like binary of the properties of 0 and 1; depicting code to identify bits that are active or not, infrared light utilizes similar methods of visible light based on where packets are sent on the light spectrum. To submit on the wireless frequency operated, infrared has two functions of components that each device is required to have: an emiter (transmission of signal), and a detector (receiving end). (Olenewa, 45) To send data, infrared utilizes the intensity and density of the light wave to match the intensity of the electral current; allowing the receiver of the next device to match the pulse to make a proportional electrical current. (Olenewa, 45). Infrared utilizes two modes of transmission within the wireless method in itself; directed and diffused. Directed, much like most point to point neworks utilizing a bridge like concept with directional panels, requires a point to point shot or line of sight; meaning the array must be clear and pointed enough to one another; both transmitter and receiver. Diffused transmission delivery as a wider aperture and also utlizes reflection to meet the detector/receiver for the second device.
Radio transmission utilizes electromagnetic waves and form multiple outpaths that can go in all directions depending on the direction of transmission. Widely used as the most popular form of transmission of data, especially over long distances. radio waves can operate on multiple wave types and propagate variously to include through physical objects. (Olenewa, 49). It utilzes different signal types based on intent and purpose. Analog signals operate in a continuous fashion with no breaks, forming diffent size of wavelengths with no gaps in between the set of wavelength. (Olenewa, 50) As opposed to digital signals, the method of the wave pulses could have breaks in the signal that mimic seperation or pauses in the pulse of the signal; often used for discrete transmission of the signal or allowing for transmission such as computers.
The two types of wireless transmissions are infrared lights and radio waves.
Infrared wireless systems require devices to have two components in order to communicate. These two components are an emitter, to send the signal, and a detector to receive the signal. Infrared systems have the benefit of neither affecting, or being affected by, other communication signals. Infrared light also cannot penetrate walls, meaning that whatever information is transmitted is kept inside that room and cannot be intercepted from outside sources. A downfall of infrared systems is that they are comparatively slow transmissions systems, and some of them (direct) require line-of-sight in order to communicate, making them difficult to use over long distances or certain terrain.
“When an electric current passes through a wire, it creates a magnetic field in the space around the wire. As this magnetic field radiates, it creates radio waves. Because radio waves, like light and heat waves, are electromagnetic waves, they move outward, usually in all directions.” (Olenwa, J). Radio transmission is the most widely used means of wireless communication. Radio waves can travel great distances and can penetrate through most surfaces.
“An analog signal is one in which the intensity of the waves (voltage or amplitude) varies and is broadcast continuously—in other words, the signal has no breaks in it.” “A digital signal consists of discrete or separate pulses, as opposed to an analog signal, which is continuous. A digital signal has numerous starts and stops throughout the signal stream—Morse code, for example, with its series of dots and dashes.”(Olenwa, J)