Saturday, August 10, 2019
Please go to this link and discuss a question with philosophy ethics Essay
Please go to this link and discuss a question with philosophy ethics and knowledge - Essay Example People believe that they can find their happiness. Natural happiness is one that we get when we achieve our desires while a synthetic one that we make when we do not get that which we wanted. Modern society believes that synthetic happiness is inferior to a natural one. The analysis shows that synthetic happiness is as genuine as any other form. Satisfaction of this kind occurs when one is happy with what they currently have. Freedom is some form of natural happiness and is the enemy of synthetic happiness. Synthetic happiness helps people to accept the things they cannot change. Irreversible situations are not favorable for artificial happiness to occur. Some things are better than others, and it is good to have preferences. When we have unlimited ambition, we can work at our best. When we have ambitions that are limited, this can make us go into negative vices to get the happiness that we seek. Such a situation can even cause us to sacrifice things that are of value to us. Our worries and everyday pressures are overblown because we have the ability to control how we react to them. We have the capacity to make our
Friday, August 9, 2019
The Relationship between the BBC and Public Broadcasting Corporation Essay
The Relationship between the BBC and Public Broadcasting Corporation and the Commercial Sectors - Essay Example First, before going into BBCââ¬â¢s relationship as a public broadcasting corporation with the commercial sectors, it is helpful to identify first what is meant by public service broadcasting. The Communications Act 2003 (CA 2003) sets a duty on the Office of Communications (Ofcom) to obtain accessibility of a broad range of both ââ¬Å"television and radio servicesâ⬠all over the United Kingdom that is of high quality and considered to draw diverse ââ¬Å"tastes and interestsâ⬠(Communications Act 2003 s. 264); and to keep an adequate number of providers for various ââ¬Å"television and radio servicesâ⬠(Ridgway 48). While the Communications Act has not defined what comprises ââ¬Å"public service programmingâ⬠, the Office of Communications (ââ¬Å"Ofcomâ⬠) characterized this kind of programming by setting forth ââ¬Å"itsà purposesà andà characteristics.â⬠à Ridgway in his article ââ¬Å"All change for public service broadcasting in the UK?à ¢â¬ enumerates the following purposes and characteristics of public service broadcasting: Purposes: â⬠¢Ã Informing our understanding of the worldà --to inform ourselves and others, and to increase our understanding of the world through news, information and analysis of current events and ideas.Stimulating knowledge and learning --to stimulate our interest in and knowledge of arts, science, history and other topics, through content that is accessible and can encourage informal learning. â⬠¢Ã Reflecting UK cultural identityà --to reflect and strengthen our cultural identity through original programming in the United Kingdom, at both national and regional levels, on occasion bringing audiences together for shared experiences. â⬠¢Ã Representing diversity and alternative viewpointsà --to make us aware of different cultures and alternative viewpoints through programmes that reflect the lives of other people and other communities, both within the United Kingdom a nd elsewhere. Characteristics: â⬠¢Ã High qualityà --well funded and well produced. â⬠¢Ã Originalà --new UK content rather than repeats or acquisitions. â⬠¢Ã Innovativeà --breaking new ideas or reinventing exciting approaches, rather than copying old ones. â⬠¢Ã Challengingà --making viewers think. â⬠¢Ã Engagingà --remaining accessible and attractive to viewers. â⬠¢Ã Widely availableà --if content is publicly funded, a large majority of citizens need the chance to watch it. (48) McGonagle on the other hand, defines public service broadcasting (PSB) as those broadcasted TV programs which are for the benefit of the public instead of solely for commercial ends (235). These programs consist of ââ¬Å"local news coverage, arts programs, religious broadcasts, and augmented broadcasts featuring (for example) subtitling, visual signing and audio descriptionâ⬠(McGonagle 235). It may also include ââ¬Å"original drama, documentaries and chil dren's programmingâ⬠(Ridgway 49). A particular quota on ââ¬Å"public service broadcastsâ⬠is also required in their ââ¬Å"license to broadcast,â⬠in accordance with Ofcomââ¬â¢s regulations (Ridgway 49). The objectives on the other hand for the so-called ââ¬Å"plural public service broadcast provisionâ⬠are the following: ââ¬Å"Sources of high quality impartial news at local, regional as well as national level, including the nations as well as the United Kingdom as a whole;â⬠high level ââ¬Å"original British contentâ⬠; a broad range of both ââ¬Å"voices and talent from across the whole United Kingdom,â⬠to guarantee ââ¬Å"continuation and development of creative talent clusters in the regions and nations,â⬠currently assured ââ¬Å"through regional production quotas on some public service broadcastersâ⬠; ââ¬Å"guaranteed levels of investment in independent productionâ⬠in order to ensure the supply of ââ¬Å"the best crea tive ideas and the healthy development of this
Thursday, August 8, 2019
Case Study -Ethics and Professional Practice Example | Topics and Well Written Essays - 1500 words
-Ethics and Professional Practice - Case Study Example The basic ethical principles are respect, empowerment, protection, responsibility and commitment. Every professional practice is shaped by its own ethics and codes of conduct that are expected of those who practice it. The police have a duty to protect themselves and other people considered vulnerable in society such as children and have the responsibility to carry the burden brought about by their conduct (Kleinig, 1997). In the case of Kelly Woods, there are various ethical issues that do arise, which challenge the practice of the policeman. Physical assault is ethically wrong of a father does that to intentionally inflict pain to a child. However, the problem comes when parenting roles conflict with family wrangles. The suspension of the young boy from school following his possession of porn and a pocket knife is an ethically right practice that is in line with rules and regulation of schooling. The child was to be punished but not assaulted. Ethics for parenting were thus broken by the father. The filing for a case five years after the assault case is questionable given that it is done with the assistance of the mother yet the two are separated. There could be possibilities of the young person evading future punishment due to his juvenile deliquesce and on the other hand, the mother might be silently pushing for child custody without putting her intentions clear. In the above case, there are possibilities that the police, in their faithful duty to serve the public, are being used unethically to settling personal scores. This is a case that calls for further investigation and avoid looking at things from one point of view. Cases such as these are normally complicated because the parents normally go to extreme options when seeking to take custody of kids. One ethical issue that normally stands out in such circumstances as has been seen in this case of Kelly Woods is the fact that children normally take advantage of
My experience with writing Essay Example | Topics and Well Written Essays - 750 words
My experience with writing - Essay Example An English writer will always prefer writing in English where as a person like me whose native language is Arabic, like to write in Arabic only. It will be difficult for me to write in English or Hindi. Why writers prefer their own native language for writing? Children in my country learn to write at the age of 6. In fact I acquired the writing skill little bit later at the age of 7. My father was an expert in writing newspaper articles and some of my uncles were fond of writing poems. I started writing poems at the age of 14 and one of my teachers has encouraged me a lot in writing poems. I was comfortable in writing poems in Arabic. But it was not easy for me to write the poems in English. One of my poems which were translated to English with the help of one my friends is given below. Writing requires lot of knowledge and also lot of in depth analysis. Since I am comfortable with the Arabic literature available in my country, I will be more interested in writing in Arabic rather than in English. If I want to express my ideas or opinion about a topic then I will get the suitable words from Arabic language only because of my lack of awareness about English language. Of course I agree that since English is an international language, it may have better words or expressive vocabularies than Arabic. But because of my lack of awareness about such big words from English, I may not be able to express my ideas, opinions or suggestions properly in English. Writing in own language provides ample freedom in selecting the words or vocabularies. The meaning of the words must be well understandable to the readers. I am confident of making the Arab people aware of my views through my literature like poems. But I am not sure how other people from a different country or region perceive my language. Though language will never prevent me from expressing my views internationally, I am not sure whether people from other countries will enjoy my
Wednesday, August 7, 2019
Poverty and Deprivation Essay Example for Free
Poverty and Deprivation Essay The area a child grows up in has an effect, for example if a child is brought up on a council estate in poor housing they are more likely to have health problems. If parents are not working or have low income jobs they are likely to buy cheaper food and usually this means lower quality which can lead to health problems. Children and their families may have lower expectations. They might settle for the life that id mapped out. If a child lives in high rise flats or appartments they have less oppportunities to play. In poor quality housing there may not be a garden or safe playing area. This is reducing the childs opportunities to develop their physical gross motor skills. This of course is not always the case and there are many ways that we can tackle these issues and help to improve the chances and opportunities children have who live in poverty. However, if a lack of nourishing food is a problem due to severe poverty, this can severly damage a childs physical and mental well being. This can have a knock on effect in the sense that they become listless and withdrawn from having no energy, meaning they find it hard to take part in learning activities and wont have the benefit of developing their learning further. If there is a strained parental relationship due to money worries a child will undoubtedly be affect by this also. Poverty can affect children adversley in many ways and its important that they get what they are missing at home when they go to pre-school/nursery. History of abuse and neglect ââ¬â Family environment and background ââ¬â Behaviour of mother during pregnancy ââ¬â â⬠¢ During pregnancy, if a mother smokes, takes drugs, becomes ill or suffers from stress or anxiety this can result in premature birth and health problems for the baby such as -: low birth weight, undeveloped organs, problems with sight and hearing. These are all problems that could delay their development. Some children are born with conditions that could affectà their development such as a blood disorder. Personal choices ââ¬â â⬠¢If a child or young person as decided for what ever reason they do not want to be educated or leave school before they finish their education, this is their choice and we cannot always show them alternative choices for staying at school. Looked after/care status ââ¬â â⬠¢This again could have a huge influence as a lot of looked after children are moved around regularly. This will effect their education enormously. Separation and attachment issues are quite often the cause of many reasons not to want to be in school. This is constantly worked on by schools to find the best way to include these children in school and to be able to give them a good standard of education. Education ââ¬â â⬠¢If for example a child has not attended a nursery or play group in their early years this can often set them back from what development stage they should be at when attending school. This could be the lack of nursery places, not good enough teachers to the child having a learning disability that has not been identified yet. 2.3 Explain how theories of development and frameworks to support development influence current practice. Albert Bandura imitating/copying other.à Burrhus Skinner learning is affected by awars and punishments. Jean Piaget children actively involved in their learning. Shabhna Jerome active in own learning, develop different ways of thinking at different stages. Lev Vygotsky- Zone of Proximal Development/scaffolding, children actively learning through social interaction. How current theorist views influence practice today. Skinner reward charts and other positive reinforcement techniques.à Vygotsky developed a concept called proximal development which centres on the idea that adults help children to learn and that children help each other . Guiding children to look for answers by imitating what they see in others, listening to instructions and working as part of a group all provide opportunities for them to expand their current base of knowledge. Bruner- developed spiral curriculum which makes us believe that children learn through discovery with direct assistance by adults to encourage them to return to activities time and time again which would develop and extend their learning. His theory is used today as children have plenty of opportunity for free play and child initiated activities which form the majority of the day under the Foundation Phase Curriculum. Bandura developed the social learning theory which is basically learning through watching others. By setting a good example and modelling g ood behaviour children will learn how to behave appropriately.
Tuesday, August 6, 2019
Ocean to the Rivers of Story by Somadeva Essay Example for Free
Ocean to the Rivers of Story by Somadeva Essay Ocean to the Rivers of Story by Somadeva The Kathasaritsagara (Ocean to the Rivers of Story) is a famous compendium of Indian legends fairy tales and folk stories compiled by Somadeva. Somadeva lived in the 11th century. He was a court poet to King Ananta of Kashmir. Most likely he was asked to compose a cycle of stories for the Queen Suryamati to keep her mind away from the political crisis in the country. The poet knew a lot of ancient tales that contained many ancient Indian beliefs. As a basis for his book he took a much older Indian tale collection Brhat-katha (The Great Romance) by Gunadhya, theà original version of which had been lost. The structure of Kathasaritsagara is a collection of tales inside one main framing tale about the life and adventures of the son of the legendary King Udayana. It also includes the story about how The Great Romance was written and what happened to this book afterwards. As the title implies -Ocean to the Rivers of Story, Somadevas work united all the stories that were known at that time, just like an ocean unites all the rivers. Every story, big or small, written or told found its reflection in Somadevas collection. Thus, no wonder that the characters of this collection both, humans and all different creatures that humans believed in. Some stories reflected the life of Indian society, and their characters are desperate lovers, powerful kings, greedy bankers, smart merchants, shrewd and clever women, brave warriors and many others. Other stories reflect strange fantastic myths and the characters of them are goblins, vampires, witches, devils and all other imaginary creatures that were created by Indian folklore during the past centuries. This book isà sometimes called the mirror of Indian imagination. The story The Red Lotus of Chastity tell us about a live of a merchants family. The only son of a merchant got married to a smart and beautiful girl named Devasmita. The young man inherited his fathers business and had to take care of his familys prosperity. One day he decided to go to the island of Cathay to sell his goods. His wife was afraid that he would fall in love with another woman while being away. She went to the temple and asked God Siva for a piece of advise. God Siva gave a red lotuse to herà and her husband, saying that it any of them would be unfaithful, the lotus of the spouse would fade. On the trip the fellow merchants of the young man found out about this and decided to seduce the young merchants wife and humiliate Guhasena. However, all their attempts were in vain, as Devasmita understood their plan and could play a trick on all of them. At the end Devasmita travels to the island of Cathay to tell the story to her husband and to not be separated from him anymore. The three men who tried to seduce Devasmita admitted their plans and were turned into her slaves. This storys characters are regular people: a young merchant, who loves his wife and wants to give the best he can get to her; a young wife, who loves her husband and remains faithful to him all the time, three men- seducers, who represent the evil side; a witch- an old woman who help to make the plan of seduction. But at the end we see that the good characters celebrate the victory as it should always be. This story reminds me of the stories and tales of European troubadours who lived during the Medieval Ages. In contrast to the official sacred art, their tales and songs wereà about real human lives, about human good and bad traits of character. The character of this story can be easily compared to the characters of Molieres plays and Shakespeares comedies. There have been many discussions about how Indian stories traveled around the world. According to some scientists Indian story-telling made the Persians learn the art of storytelling and pass it on to the Arabians. Then ancient Indian tales traveled from the Middle East to Constantinople and Venice. Later they were reflected in the works of the early representatives of the Renaissance Era. Some scientists believe that Western tales borrowed a lot from Indian ones. The discussion is still open nowadays. The researches could not prove anything yet. However, even on the example of this story we could see the similarity of character types and story development. But it would be not surprising that this type of a connection would be established as it is very likely that educated European people knew Indian tales and were fascinated by them. Obviously, they could have borrowed some motives and characters for their later works.
Monday, August 5, 2019
Network Microwave Link
Network Microwave Link Microwave Communications Link Design And Implementation Gert Brits AbstractInternet and network access from any location is a requirement in most businesses around the world today. This paper outlines the procedure necessary to plan, install and commission a 5.8 GHz un-licensed point-to-point microwave link. The link will serve as a connection between two office buildings to provide internet and network access to the employees. The planning stages of the project presents the various environmental influences on a microwave link, as well as the considerations that must be made to select the appropriate sites, hardware and configuration settings for the link. These parameters are used to calculate the expected performance data and install a microwave link that would operate reliably at five nines (99.999%) of availability. Index Termsattenuation, losses, fading, line-of-site, received signal level, Introduction DIGITAL microwave systems are used all over the world for a wide variety of applications. The majority is point-to-point systems; a single link connecting two sites together. For most businesses, having access to the local area network and the internet is essential. The challenge for many is the occupation of more than one office building and how multiple buildings can gain access to the same network. Harris Stratex Networks (HSTX) in San Jose, California occupies an office building in San Jose as well as an equipment warehouse in Milpitas, two miles from the office building. Since the company manufactures digital point-to-point microwave radios and has access to such equipment, an effective method was researched to utilize a point-to-point radio link as a connection between the two buildings. The purpose of this paper is to demonstrate how a digital point-to-point microwave link can be used to link two office buildings together, in this case the main office building of HSTX in San Jose and the warehouse in Milpitas, and provide internet and local area network access to the employees at the warehouse. The various aspects involved in the design, installation and commissioning of a digital point-to-point microwave system is described to highlight the procedures and planning required from microwave engineering before, during and after a microwave link is installed. attenuating influences on a microwave link Almost all components involved in a microwave link will cause the signal to be attenuated at some stage during transmission. In microwave engineering, attenuation plays a major role in the design and planning of such a link to ensure reliability and availability regardless of the surrounding conditions. Whether its in the cables, connectors, antennas or free space; attenuation on a link can not be avoided and provision needs to be made, during the design stage, for the degree of expected attenuation to occur. Propagation losses Propagation losses such as attenuation caused by reflection, free space losses, attenuation caused by rain and by atmospheric gasses have a negative influence on a microwave link. Reflection Line-of-Sight Microwave links are designed to have enough clearance over any object or terrain along the path to avoid the signal grazing or scraping across obstacles. The Fresnel zone is known as the area around the visual line-of-sight that radio waves spread out into after they leave the antenna [1] and where obstacles would cause in phase or out of phase reflection of the radio wave. This area must be clear of any obstructions to avoid an undesired affect on signal strength. Fig. 1 illustrates the typical Fresnel zones associated with a microwave link. Microwave signals which are reflected or refracted could lead to multiple copies of the same transmitted signal to arrive at the receiving antenna at different times and out of phase. The reflected and refracted signals will experience differences in attenuation, delay and phase shifts which will result in either constructive (amplifying the signal) or destructive (attenuating the signal) interference. There are an infinite number of Fresnel zones. Obstacles in the first Fresnel zone will create signals that will be 0 to 90 degrees out of phase. The second Fresnel zone will cause signals to be 90 to 270 degrees out of phase. In the third, the signals will be 270 to 450 degrees out of phase and so forth. Odd numbered zones (1, 3, 5 etc.) have a negative effect on the signal power while even numbered zones have a positive effect since these signals actually add to the signal power. The phase canceling effect is strongest in zone 1 and decreases in each successive zone, hence the need to eliminate as many obstacles from the first zone as possible. These clearance requirements also include the sides of the path and not only the top and bottom. Free space loss Free space loss is defined as the loss that would obtain between two isotropic antennas in free space, where there are no ground influences or obstructions [2]; in other words, the loss where no obstacles nearby can cause blocking, refraction, diffraction or absorption. This loss increases with an increase in frequency and distance and the formula for calculating free space loss [3] using the frequency of operation (f) and the distance (in miles) between the two antennas (D) is given by: (1) Attenuation caused by atmospheric gasses Attenuation caused by atmospheric gases is mainly caused by oxygen and water vapor in the air. The small amount of attenuation caused by oxygen stays relatively constant across all operating frequency bands. Attenuation caused by water vapor absorption however is highly dependent on the frequency of operation as well as the density of the water vapor and will have a deep impact on the links operating above 14 GHz. Attenuation caused by rain Furthermore, fading can be the distortion a microwave signal experiences due to changes in the atmosphere or rain. The total amount of rain that falls is not as important as the intensity of the rainfall. For example, an area which gets lite rain for most of the year would be less affected by rain attenuation than an area that gets a storm of rain during the rainy season, even for a short period of time. Microwave links operating below 8 GHz remain largely unaffected by rain attenuation but at 10 GHz and above, rain has a big impact on the networks reliability. Availability for modern day high reliability systems varies. The annual outage objective for high reliability systems could be as little as 0.01% to 0.0001% of the total operating time which translates to 53 minutes of down time per year for 99.99% reliability and only 30 seconds of downtime per year for 99.9999% reliability. Fading can degrade the bit error rate (BER) performance of a microwave link resulting in loss of data. Parameters such as the radio frequency, path length, humidity, temperature, smoothness of the terrain, calmness of the wind, fog and the number of thunderstorms per year can all increase the probability of fading. Branching losses Branching losses are introduced by the hardware used to carry the microwave signal and is generally specified by the equipment manufacturer. Other losses Other losses associated with a microwave link include losses from feeders, connectors, antennas, radomes and TX line losses. These losses are specified by the manufacturers at different frequencies of operation. Microwave link Planning Sufficient microwave path engineering ensures a link performs according to the requirements set by the owner or user. In a perfect world, any microwave beam would travel in a straight line from start to finish. In reality however, everything surrounding the microwave beam and equipment can cause the signal to be attenuated, amplified or interfered with. The challenge for any microwave engineer is to know what these factors are and how to design around it. Site selection An essential part of planning a microwave link is the selection of appropriate sites. The office and warehouse roof of HSTX provided a line of sight which was clear of any surrounding buildings and obstructions that could block or cause the microwave signal to be diffracted. There was no possibility of additional floors being added to either of the two buildings and the absence of other towers and microwave systems in the area, which could interfere with this link, made these sites ideal for the antenna installation. In addition to this, the sites already had access roads, ac power and telephone services which were other requirements considered when choosing the appropriate sites. Frequency and equipment selection Industry standards and licensing for microwave radios are, in the USA, governed by the Federal Communications Commission (FCC). Radios operating in the license-free 2.4 GHz and 5.8 GHz bands are considered un-licensed radios and require no licensing from any governing body. Un-licensed radios, such as the Velox LE 5850 manufactured by Harris Stratex Networks, can be installed and operated without any approval from the FCC. The Velox 5850 series is capable of providing up to 45 Mbps of Ethernet throughput (Full-duplex) which was sufficient for the purpose of this link. The output power of the radio can be software adjusted up to +22 dBm and with a receiver sensitivity of -78 dBm; enough fade margin can be achieved to ensure link availability of 99.999%. The radio hardware is available in a split-mount configuration; a radio frequency unit (RFU) which is connected to a digital unit (DU) using shielded CAT5e cable. The RFU is installed on the tower or mounted below the antenna and the DU is installed inside an equipment building or enclosure. Management software to configure the radio and monitor the performance of the radio link is available for this product. A 4.940-5.580 GHz Grid Antenna (model no GS2-58N), manufactured by mWAVE Industries, LLC was selected for the project. The antenna provided a gain of +27 dBi, a VSWR of 1.5:1, a return loss of 14 dB and could be mounted for horizontal or vertical polarization as illustrated in Fig. 2. Microwave link calculations The microwave link design was started by doing a link budget analysis; a calculation that involves all the gains and losses associated with the antennas, cables, connectors, radio hardware and environment. The link budget was used to determine the expected received signal levels at each end of the link. Once this has been done, minor adjustments were made to the sites and hardware selections to achieve the desired link availability. Path calculations The receiver threshold value is a measure of the lowest possible signal level the radio can receive and still operate at an acceptable level of performance. This level was specified by the equipment manufacturer as -78 dBm. The difference between the received signal level and the receiver threshold indicates the fade margin (the amount of fading a microwave radio can experience before having the signal degraded enough to cause BER errors or framing errors) of the link. To calculate the expected receive signal level and the fade margin, the propagation losses, branching losses and other losses had to be subtracted from the radio output power and antenna gain. The attenuation caused by atmospheric gasses for links below 14 GHz was negligible. The free space loss given by (1) and therefore the total propagation loss was calculated as 114.32 dB. Transmit and receive branching losses associated with the Velox 5850 radio was specified by the equipment manufacturer as 1.5 dB respectively. Other losses, all of which were specified by the various manufacturers, included the TX line losses of 3.72 dB (1.24 dB per 100ft of cable used) for each site and an N-Type connector loss of 0.3 dB per connector (four connectors used). Output Power = + 22 dBm TX Branching Loss = 1.5 dBm Antenna Gain = + 27 dBm Propagation Losses = 114.341 dBm Other Losses = 8.34 dBm Antenna Gain = + 27 dBm RX Branching Los = 1.5 dBm Received Power = 49.68 dBm Receiver Threshold = 78 dBm Fade Margin = + 28.32 dB Fading and interference calculations The amount of attenuation expected on the link due to rain was calculated using the formula in (2)[4], where R0.01% represents the rain rate exceeded 0.01% of the time in mm/hour and D the path length in kilometers. Multiplier a and exponent b are values taken from the North American and ITU-R rain attenuation coefficients chart, while d represents the effective path length in kilometers. The link operating at 5.8 GHz over two miles can thus expect 0.106 dB of additional attenuation during the heaviest rainfall. (2) The possibility of the radio signal being diffracted was investigated by observing the structures surrounding the microwave beam and calculating the first and second Fresnel zones using (3)[5]. The distance from the antenna to any possible obstruction is given by d1 while d2 represents the remaining distance to the other end of the link. (3) Since the Fresnel zones consist of a series of concentric circles, the areas to the side, above and below the microwave beam had to be clear of obstructions. The height of the two buildings where the antennas were to be installed provided enough clearance to ensure no obstructions within the first two Fresnel zones. With a mere 0.106 dB of additional attenuation from rain and no possibility of the signal being diffracted or reflected, only 3 dB of variation on the calculated receive level was expected. The 3 dB of variation is due to component tolerance and is specified by the equipment manufacturer. Microwave link installation The antenna and radio frequency unit were installed on a mounting pole on the roof of both buildings, in accordance with the manufacturers recommended installation procedures. A high quality 5/8 coaxial cable was used to connect the antenna to the RFU. The digital units were installed in 19 racks inside the buildings while Belden 7921A Shielded CAT5e cable was used to connect the DU to the RFU. All the hardware was grounded to the various grounding points at the sites and the recommended impedance of less than one ohm measured on all ground connections. The antennas were aligned using a digital voltmeter connected to the back of each RFU. The DC voltage reading from the voltmeter was compared to the received signal level (RSL) chart shown in Fig. 3 [6] which was supplied by the radio manufacturer. [1] Fresnel Zone http://www.webopedia.com/TERM/F/Fresnel_Zone.htm [16 June 2000] [2], [4]-[5] GTE Lenkurt. 1970. Engineering Considerations for Microwave Communications Systems [3] Harvey Lehpamer. 2004. Microwave Transmission Network:, Planning, Design and Deployment [6] Harris Stratex Networks. July 2004. Velox LE Installation and Operation Manual.
Subscribe to:
Posts (Atom)
-
Discussion Points about Critical Gender Studies readings - Essay Example Discussion Points about Critical Gender Studies readings Global...
-
'I entrust that take is beneficial. over my cyclic historic period of taking unconnected courses, bide by grazelessly forec...