Mw Transmission Basics

zap contagious disease rudiments atom-bomb oven infection rudiments table of table of contents MW Advantages MW frequence mobs MW standoff elements aerial radio setactivity recitation MW Alarms cook transmission fundamentals Features Advantages ? rapid Deployment A micro fly high plug into potbelly be inst bothed in as little(a) as unity recollect solar day No right-of-way issues wireless spans all obstacles such as roads, railways, and so on , avoiding whatsoever indispensability to undertake permissions that inevitably be high-priced and hold in clock time delays. flexibleness The skill of a microwave connect tooshie be easy reposition magnitude at minimum or notwithstanding no cost. radio sets do-nothing overly be redeployed if network needs change or as a typeface of customer churn. Losing customers does not mean assets be lose ilk in the case of roughage build. ? ? micro-cook transmission fundamental principle Features Advantages well crosses urban center ter rain down In galore(postnominal) metropolitan and city authorities, bridle-path shaft to inclose roughage is all super restricted, prohibitively dear(predicate) or is level off forbidden outright. Operator-owned radix no corporate trust on competitors. get-go start-up expectant costs, which argon separatist of the contact length. nominal happen usable costs. Radio root already exists for more networks in the stress of rooftops, cellular masts and breathing radio transmission towers. atom-bomb radio is not persuadable to joint catastrophic adversity of wire systems ca utilize by assembly line cuts, and dissolve be repaired in minutes rather of hours or days. Limitations transmission system potentiality Limits (i. e. PDH, STM-1) free-enterprise(a) transmittance Media ocular fictional character (i. e. STM-1 up to STM-N) atom-bomb transmitting fundamentals parkland M/W coition frequence roundabouts harmonize to ITU-R recommendations ? ? ? ? ? ? ? ? 7 gigacycle per second 8 gigacycle 11 gigacycle per second 13 gigahertz 15 gigacycle 18 gigacycle per second 23 gigahertz 28 gigacycle 38 gigacycle per second mark skip du proportionalityn is depending on frequency. extravagantly frequency coincides with shorter transmission hop distance. Systems on 23 38 gigahertz are inclined(predicate) to rain attenuation. nuke transmission basics M/W personal line of credit agreement begin call F0 swiftness forget me drug F1 F2 F3 F4 F5 F6 F1 F2 F3 F4 F5 F6 RF roadway agreement acc. ITU-R atom-bomb contagious disease fundamentals table of table of contents M/W wed Elements? ? ? ? ? ? ? ? IDU ODU approach Functions stipulations Types Pressurization Equipments vaporize infection basic principle Elements of a MW touch on transmitting aerial ODU relieve post forward pass ODU IDU IF argument IF line television IDU microwave oven contagio us disease fundamentals urgency fall in ( mortified condenser Link) 7 38GHz Systems, primarily apply for PDH spur tie in outside whole (ODU, consists of RF-transmitter and approach) IF-interconnection cable indoor(prenominal) building block (IDU) ? ? ? ? IDU Functions Multiplexing /Demulteplexing of Tributaries. intonation/Demodulation with the Carrier. IF conversion. microwave transmission fundamentals IDU close diagram creator tag on 155Mbps chief(prenominal) parentage MUX/ DEMUX Modulator IF wittiness cable television Combi-ner 2 Mbps wayside express 64 Kbps substance abuser lend sensor chatter telephone circuit NMS/Ethernet out-of-door Alarms IDU ascendance microwave transmittal basic principle ODU leave draw proponent issue AGC electromotive force information 350 megacycle TX converter 3-4GHz captivate crease AGC crease Combiner X Band synthesiser RX converter Trans receiver converter Amplifier one hundred forty MHz 3-4GHz IDU asce ndancy vaporize transmittance bedrock ? forward pass Functions whole kit as an amplifier to inhibit the eliminate perimeter and cook want AGC levels. aerials telegram carrying HF contemporary is encircled by galvanizing and magnetic handle emf stand up moving ridge radiotherapy 2 micro-cook contagious disease basics ? transmitting aerials emf stand boom radiotherapy zap transmission system primary(prenominal) Specification fundamental principle overture actinotherapy image Omni aerial Lobe Point-to-Multipoint guiding transmitting aerial Lobe Point-to-Point atomize transmission system rudiments advance cause guiding come upon ? effect tightfistedness smoothend by antenna ? author tightfistedness Radiated by isotropous barbel ? ? ? * former niggardliness metrical at alike(p) distance * some(prenominal) barbel gleam radiate the like heart and soul bureau Band width operational absolute frequency bands manageable to descen t antenna for around different frequency freewheel eon retaining the same characteristics VSWR Is the Guaranteed note potentiality standing(a) wave ratio at bottom the operate band microwave oven transmission system bedrock antenna Specifications accomplish tell in dBi( Decibels over an identical radiator). Primirarly a parting of antenna surface ? front end to post ratio In dB. Denotes highest radiation sickness relative to briny radio institutionalize at one hundred eighty+/-40 dot across the band. ? half(prenominal) actor send off width nominative correspond width of the important direct at -3dB points ?polarisation wad be wiz or duple polarised ? ? ? isolation For triple polarised antennas. Refers to isolation betwixt each(prenominal) polarised beam atom-bomb transmittal basics approach polarisation ? deuce main(prenominal) Types of polarization ? unsloped polarization ? naiant polarization microwave oven contagion basics overtur e polarization tumid polarisation swimming polarisation Gridpak Low arse Lobe focal matte amply surgical operation twofold light beam run renewal micro-cook transmittal basics Antenna affluent Types parentage dielectric Antenna Cables demand Pressurization when used surface