?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.title=Unidad+M%C3%B3vil+de+Enlace+Terrestre+(U.M.E.T.)&rft.creator=Vela+Arranz%2C+Ricardo&rft.contributor=Ort%C3%ADz+Berenguer%2C+Luis+Ignacio&rft.subject=Telecommunications&rft.description=Este+proyecto+trata+la+realizaci%C3%B3n+de+una+unidad+m%C3%B3vil+de+enlace+terrestre+(UMET)%2C+para+la+radiodifusi%C3%B3n+de+se%C3%B1ales+audiovisuales.%0D%0ASe+consideran+tres+usos+diferentes%3A%0D%0A%E2%80%A2+Desde+el+lugar+donde+el+evento+tiene+lugar%2C+hasta+el+centro+de+producci%C3%B3n+de+televisi%C3%B3n.%0D%0A%E2%80%A2+Se+utiliza+como+un+repetidor+intermedio+entre+dos+lugares+que+no+tienen+visi%C3%B3n+directa.%0D%0A%E2%80%A2+Para+el+env%C3%ADo+de+una+se%C3%B1al+a+nivel+local.+Se%C3%B1ales+dif%C3%ADciles+de+ser+enviadas+a+trav%C3%A9s+de+medios+f%C3%ADsicos%2C+como+la+fibra+o+cables+triaxiales%2C+y+que+se+est%C3%A1n+generando+en+las+proximidades+de+la+unidad+m%C3%B3vil+de+producci%C3%B3n+de+v%C3%ADdeo.+Estas+se%C3%B1ales+se+integran+junto+al+resto+de+se%C3%B1ales+de+la+cadena+de+c%C3%A1maras+con+otros+contenidos+para+agregar+un+valor+extra+al+resultado+final+de+la+filmaci%C3%B3n.+El+contenido+de+estas+se%C3%B1ales+es+generado+por+c%C3%A1maras+que+est%C3%A1n+posicionadas+en+lugares+estrat%C3%A9gicos+como+azoteas+y+andamios+o+simplemente+en+sitios+lejanos.%0D%0AEn+cualquier+caso+la+potencia+transmitida+por+cada+uno+de+los+enlaces+terrestres+contenidos+en+nuestro+dise%C3%B1o+es+de+1+W.%0D%0ALa+otra+aplicaci%C3%B3n+para+nuestra+UMET+es+generar+im%C3%A1genes+por+medio+de+una+c%C3%A1mara+que+transmite+su+se%C3%B1al+por+radio+frecuencia+(RF+cam).+Esta+c%C3%A1mara+env%C3%ADa+su+se%C3%B1al+a+trav%C3%A9s+del+sistema+de+transmisi%C3%B3n+inal%C3%A1mbrica+y+es+recibida+en+nuestra+UMET.+Despu%C3%A9s%2C+enviamos+esta+se%C3%B1al+a+la+unidad+m%C3%B3vil+de+producci%C3%B3n+de+v%C3%ADdeo+para+mezclarlo%2C+con+el+conjunto+de+c%C3%A1maras+de+cable.+Hay+dos+posibilidades+de%0D%0Aensamblaje+de+la+c%C3%A1mara%3A%0D%0A%E2%80%A2+Un+montaje+compacto+como+c%C3%A1mara+de+periodismo+electr%C3%B3nico+ligero+(PEL)%2C+con+100+mW+de+potencia+de+transmisi%C3%B3n%2C+lo+que+implica+corto+alcance%2C+entre+100+y+150+m.%0D%0A%E2%80%A2+Un+segundo+montaje+que+a%C3%B1ade+un+amplificador+lineal+con+5+W+de+potencia+transmitida%2C+que+permite+un+mayor+alcance%2C+del+orden+de+400+m+o+superior.%0D%0ACon+el+fin+de+materializar+el+prop%C3%B3sito+de+nuestro+dise%C3%B1o%2C+realizaremos+las+siguientes+acciones%3A%0D%0A%E2%80%A2+Elegir+un+veh%C3%ADculo+apropiado%2C+de+acuerdo+con+el+peso+de+todos+los+equipos+involucrados%2C+incluyendo+dispositivos+de+tipo+t%C3%A9cnico+y+no+t%C3%A9cnico.+En+nuestro+caso%2C+estamos+dentro+de+los+l%C3%ADmites+de+3500+kg+de+masa+m%C3%A1xima+autorizada+(MMA)%2C+por+lo+tanto%2C+podemos+utilizar+un+veh%C3%ADculo+ligero.+Puede+ser+conducido+con+un+permiso+normal+o+tipo+B.%0D%0A%E2%80%A2+Las+modificaciones+internas+y+externas+del+veh%C3%ADculo+son+un+proyecto+llave+en+mano.+Estos+conceptos+est%C3%A1n+incluidos+en+el+precio.%0D%0A%E2%80%A2+Cableado+de+la+instalaci%C3%B3n+el%C3%A9ctrica%2C+datos%2C+audio+y+v%C3%ADdeo.%0D%0A%E2%80%A2+Montaje+del+grupo+el%C3%A9ctrico+y+primera+puesta+en+marcha.%0D%0A%E2%80%A2+Instalaci%C3%B3n+de+equipos+y+conexionado+de+los+mismos.%0D%0A%E2%80%A2+Por+%C3%BAltimo%2C+las+pruebas+de+todos+los+sistemas+y+equipos+de+la+unidad+para+verificar+un+funcionamiento+adecuado+de+ellos.%0D%0AABSTRACT.%0D%0AThis+project+treats+about+a+terrestrial+link+mobile+unit+(TLMU)%2C+for+broadcasting+of+audiovisual+signals.%0D%0AThree+different+uses+are+considered%3A%0D%0A-From+the+place+where+the+event+happens%2C+to+the+TV+production+centre.%0D%0A-Used+like+a+intermediate+repeater+between+two+places+without+direct+vision.%0D%0A-For+sending+a+local+signal.+Signals+which+are+difficult+to+sent+by+means+of+physical+media%2C+such+as+fibre+or+triaxial+cables%2C+and+which+are+being+generated+nearby+the+video+production+mobile+unit.+These+signals+are+included+along+with+the+rest+of+signals+from+cameras+to+other+contents+with+the+purpose+of+adding+an+extra+value+to+the+final+result+of+the+filming.+The+contents+of+these+signals+are+generated+by+cameras+located+strategically%2C+such+as+in+roofs+and+scaffolds%2C+or+simply+in+far+places.%0D%0AIn+any+case%2C+each+of+the+terrestrial+links+contained+in+our+design+transmits+1+W+of+power.%0D%0AThe+other+application+for+our+TLMU+is+to+generate+images+by+means+of+a+radio+frequency+camera+(RF+cam).+This+camera+sends+its+signal+through+a+wireless+transmission+system+and+which+is+received+in+our+TLMU.+Then%2C+we+send+this+signal+to+the+video+production+mobile+unit+for+mix+it%2C+with+the+set+of+cable+cameras.+There+are+two+possibilities+for+camera+assembly%3A%0D%0A-A+compact+assembly+like+Electronic+News+Gathering+camera+(ENG)%2C+of+100+mW+transmission+power%2C+with+short+range%2C+between+100+and+150+m.%0D%0A-A+second+assembly+which+adds+a+linear+amplifier+with+5+W+of+transmitted+power%2C+wich+allows+a+long+range%2C+around+400+m+or+higher.%0D%0AI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