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Ho khetha se nepahetsengcable ea phepelo ea mohalae bohlokoa bakeng sa phetiso e matla ea lets'oao marangrang a seteishene sa motheo. Cable ea feeder ea boleng bo holimo e ntlafatsa phallo ea data le nako ea ho sebetsa, e leng se bontšang bohlokoa ba cable ea feeder likhokahanong tsa mehala. Telsto e fana ka litharollo tse tšepahalang tsa cable. Tafole e ka tlase e bontša kamoo khetho ea cable e amang ts'ebetso ea marang-rang kateng:
| Mofuta oa Cable | Melemo | Tšusumetso ho Litekanyo tsa Tshebetso |
|---|---|---|
| Likhoele tsa Koporo | E theko e tlase, e lumellana le maemo, e loketse libaka tse kgutshwane | Bongata ba bandwidth bo lekanyelitsoeng, latency e phahameng |
| Likhoele tsa Faeba Optic | Lebelo le potlakileng, bandwidth e kholoanyane, libaka tse telele | Phetoho e ntlafetseng, nako e ntlafetseng ea ho sebetsa |
Ho Khetha Cable e Nepahetseng ea Telecom Feeder
Litlhaloso tsa Bohlokoa bakeng sa Boleng ba Letšoao
Ho khethathapo ea phepelo e ka letsohong le letonaho bohlokoa bakeng sa ho boloka boleng bo matla ba lets'oao marangrang afe kapa afe. Litlhaloso tsa tekheniki tsa thapo ea feeder li ama ka kotloloho ts'ebetso ea marangrang a selefounu le litsamaiso tse ling tsa puisano. Litsebi li tlameha ho lekola liparamente tse 'maloa tsa bohlokoa pele li etsa qeto.
| Tlhaloso | Tlhaloso | Tšusumetso Boleng ba Letšoao |
|---|---|---|
| Mokgwa wa ho fetola o sa sebetseng (PIM) | E lekanya maqhubu a sa batleheng a harmonic a hlahisoang ke ho se be le linearities ka har'a likhoele le lihokelo. | E ama boleng ba mehala, phallo ea data, le bokhoni ba marang-rang ka kakaretso. |
| Karolelano ea Maqhubu a Emeng a Voltage (VSWR) | E bontša katleho ea phetisetso ea matla a RF ka mohala oa phetisetso. | VSWR e fokolang e lebisa ho senyeha ha motlakase le ho fokotseha ha bokgoni ba marang-rang. |
| Khetho ea Sehokelo | E netefatsa botšepehi ba nako e telele ba netweke. | Bohlokoa bakeng sa ho boloka tshebetso e ntle ka ho fetisisa ha nako e ntse e ya. |
Tahlehelo e tlase ea ho kenya ke ntlha e 'ngoe ea bohlokoa. E etsa qeto ea hore na ho lahleheloa ke matla a makae a lets'oao ha e ntse e tsamaea ka har'a thapo ea feeder. Lisebelisoa tsa maemo a holimo, tse kang tse sebelisitsoeng ho LMR400 le RG213 ea Telsto, li thusa ho fokotsa tahlehelo ena. Tafole e ka tlase e bapisa boleng ba tahlehelo ea ho kenya ba mefuta e tloaelehileng ea thapo ea feeder maqhubung a fapaneng:
| Maqhubu | Tahlehelo ea RG213 (Ho fokotseha ha dB/100ft) | Tahlehelo ea LMR400 (Ho fokotseha ha dB/100ft) |
|---|---|---|
| 100 MHz | 2.2 | 1.2 |
| 400 MHz | 4.8 | 2.5 |
| 1000 MHz | 8.2 | 4.1 |
Ho kenya le ho hlokomela Cable ea Feeder
Ho kenya le ho hlokomela thapo ya feeder ka nepo ho bohlokwa bakeng sa phetiso e tshepahalang ya matshwao marangrang a dikgokagano. Mekhoa ya ho kenya ya boleng bo hodimo le tlhokomelo ya kamehla ya thibelo di thusa ho boloka tshebetso e ntle marangrang a diselefounu, kgaso le ditsamaiso tse ding tsa dikgokagano. Boitlamo ba Telsto ba ho etsa diteko tse matla le taolo ya boleng bo netefatsa hore thapo e nngwe le e nngwe ya feeder e fihlela maemo a indasteri bakeng sa ho tshwarella le ho tshepahala.
Mekhoa e Molemohali ea ho Kenya
Ho kenya cable e fepang ka katleho ho fokotsa tahlehelo ea lets'oao le tšitiso. Litsebi li lokela ho latela mekhoa e metle ea indasteri ho netefatsa botšepehi ba marang-rang. Litataiso tse latelang li tšehetsa ho kenngoa ka katleho:
• Qoba ho kobeha kapa ho thibana ha thapo ho thibela tshenyo le ho senyeha ha letshwao.
• Sebelisa diklipu tsa thapo kapa di-fasteners ho tiisa thapo le ho boloka tsela e boreleli ya ho e tsamaisa.
• Khetha bolelele ba thapo le gauge e nepahetseng ho fokotsa ho fokotseha ha lets'oao.
• Netefatsa hore lihokelo tsohle li tiisitsoe hantle ebile li otlolohile hantle.
• Kenya motheo o nepahetseng ho thibela tšitiso le ho boloka boleng ba lets'oao.
• Nahana ka ho sebelisa li-booster bakeng sa ho sebetsa ha cable nako e telele ho boloka matla a lets'oao.
Likhoele tsa feeder tsa Telsto li hlahlojoa ka thata ke mafapha a QC a ka hare ho naha le bahlahlobi ba mokga wa boraro pele li romelloa. Ts'ebetso ena e netefatsa hore thapo ka 'ngoe e fana ka ts'ebetso e tsitsitseng lits'ebetsong tse fapaneng tsa thapo ea feeder, ho kenyeletsoa phetiso ea data ea bokhoni bo phahameng le puisano ea sathelaete.
Liphoso tse tloaelehileng nakong ea ho kenya li ka lebisa mathateng a marang-rang a nako e telele. Ho kobeha ha thapo ka tsela e sa lokelang, boleng bo bobe ba ho kopanya, ho tlola ho koala ha duct hantle, le tsitsipano e fosahetseng ea ho hula ke lisosa tse atisang ho hlaha tsa tahlehelo ea lets'oao. Liphoso tsena li ka fella ka khanyetso e eketsehileng, ho kena ha metsi le libaka tse chesang tsa mocheso, tse ka 'nang tsa lula li sa lemohuoe ho fihlela li baka mathata a maholo a ts'ebetso. Ho ela hloko mekhoa ea ho kenya ho thusa ho thibela mathata ana le ho tšehetsa nako e telele ea thapo ea feeder.
Keletso: Kamehla latela tataiso ea moetsi bakeng sa ho kenya 'me u sebelise lisebelisoa tse khothaletsoang ho qoba ho senya thapo kapa lihokelo.
Ho netefatsa Likhokahano tsa Boleng
Dikgokelo tsa boleng bo hodimo pakeng tsa dithapo tsa phepelo le disebediswa tsa seteishene sa motheo di bohlokwa bakeng sa ho boloka phetiso e matla ya letshwao. Ho tsamaellana pakeng tsa dikgokelo le dithapo ho bohlokwa. Sehokelo se tlameha ho tsamaellana le boholo ba mmele le dibopeho tsa motlakase tsa thapo ya phepelo ho netefatsa kgokelo e sireletsehileng, e sa hanyetseng haholo. Dikgokelo tse sa tsamaellaneng di ka baka kgokelo e mpe le ho fokotseha ha letshwao haholo.
Ho tšoarella ke ntlha e 'ngoe ea bohlokoa. Lihokelo tse pepesehetseng tikoloho e thata kapa khatello ea mechine li tlameha ho sebelisa thepa le meralo e matla ho mamella mongobo, ho thothomela le liphetoho tsa mocheso. Litekanyetso tsa ts'ebetso, tse kang motlakase le bokhoni ba ho jara motlakase, li lokela ho lumellana le litlhoko tsa ts'ebetso ea marang-rang. Lihokelo tse nang le Karolelano e tlase ea Maqhubu a Emeng a Voltage (VSWR), haholo-holo ka tlase ho 1.1:1, li thusa ho fokotsa ho bonahatsa ha matšoao le ho boloka likhokahano tsa boleng bo holimo lits'ebetsong tsa thapo ea selefounu le ea fiber optic.
Mefuta e fapaneng ea lihokeloli loketse lits'ebetso tse fapaneng tsa thapo ea feeder. Lihokelo tsa mofuta oa N li fana ka tšireletso e ntle ea boemo ba leholimo bakeng sa ts'ebeliso ea kantle. Lihokelo tsa DIN li loketse li-studio tsa phatlalatso tsa litsebi. Lihokelo tsa SMA li etselitsoe lits'ebetso tsa maqhubu a phahameng, ha lihokelo tsa BNC li fana ka tharollo e theko e tlaase bakeng sa puisano le phatlalatso. Ho khetha mofuta o nepahetseng oa sehokelo le ho netefatsa mekhoa e nepahetseng ea ho kenya ho bohlokoa bakeng sa ts'epo ea nako e telele mefuteng eohle ea lits'ebetso tsa thapo ea feeder.
Tlhokomelo ea Kamehla bakeng sa Tšepo ea Marang-rang
Tlhokomelo ea thibelo ea kamehla e bohlokoa bakeng sa ho boloka ts'ebetso ea thapo ea feeder marangrang a puisano. Litlhahlobo tsa khafetsa li thusa ho khetholla mathata a ka bang teng pele a lebisa liphosong tsa marang-rang kapa ho senyeha ha lets'oao. Mekhoa ea bohlokoa ea tlhokomelo e kenyelletsa:
• Litlhahlobo tse bonahalang ho hlahloba tšenyo ea 'mele, khatello ea tikoloho le mafome lihokelong.
• Teko ea kamehla ea thepa ea motlakase ho sebelisoa lisebelisoa tse khethehileng, tse kang reflectometry ea nako (TDR), ho lemoha liphoso tsa ka hare kapa ho se lumellane ha impedance.
• Tlhokomelo ea tšireletso ea boemo ba leholimo ho thibela ho kena ha mongobo, e leng se ka behang boleng ba lets'oao kotsing.
• Tlhahlobo ea litsamaiso tsa ho thella le ho kopanya ho netefatsa botšepehi le ts'ireletso.
Tlhahlobo ea kamehla e bohlokoa bakeng sa ho thibela liphoso tsamaisong ea phepelo ea antenna. Litsebi li lokela ho hlahloba matšoao a ho kenella ha metsi, mafome le tšenyo ea 'mele. Tlhokomelo e reriloeng e tšehetsa ts'epo e tsoelang pele 'me e fokotsa tlhoko ea ho rarolla mathata le ho lokisa. Tsamaiso e nepahetseng ea cable ea fiber optic le tlhokomelo ho kenya cable ea coaxial li ntlafatsa botsitso ba marang-rang.
Lithapo tsa phepelo tsa Telsto li entsoe ka mokhoa oa ho tšoarella 'me li etsoa liteko tse felletseng ho netefatsa hore li fihlela litlhoko tsa puisano ea sejoale-joale. Ka ho latela mekhoa e metle ea hoho kenya le ho hlokomela thapo ea phepelo, basebetsi ba marangrang ba ka fihlella boleng bo tsitsitseng ba lets'oao le ho atolosa nako ea bophelo ba meralo ea bona ea motheo.
Litharollo tse Tsoetseng Pele bakeng sa Tshebetso ea Marang-rang
Likhoele tse Tahleheloang Hanyenyane le Lisebelisoa tsa Sejoale-joale
Theknoloji ea sejoale-joale ea cable ea feeder ea puisano e itšetlehile ka thepa e tsoetseng pele ho fihlela ts'ebetso e phahameng ea matšoao. Bahlahisi ba sebelisa li-alloy tsa koporo le li-polymer tse tsoetseng pele kahong ea cable ea feeder. Lisebelisoa tsena li fana ka botsitso bo betere ba mocheso le ho fokotsa tahlehelo ea matšoao, e leng ea bohlokoa bakeng sa phetiso ea maqhubu a phahameng marangrang a sele le puisano ea sathelaete. Li-polymer tse tsoetseng pele li boetse li sireletsa cable maemong a thata, li tšehetsa ts'epo ea nako e telele ho kenyeng kahare le kantle. Tšebeliso ea lisebelisoa tse bohlale ka har'a cable ea feeder e nolofalletsa ho beha leihlo le ho hlokomela ka nako ea sebele, e leng se thusang ho thibela liphoso tse sa lebelloang tsa marang-rang le ho fokotsa tlhoko ea ho rarolla mathata le ho lokisa. Telsto'slitharollo tsa cable ea feederSebelisa thepa ena ea sejoale-joale ho netefatsa boleng bo tsitsitseng ba lets'oao ho pholletsa le mefuta eohle ea thapo ea feeder, ho kenyeletsoa thapo ea coaxial le thapo ea fiber optic. Mokhoa ona o tšehetsa puisano e matla le ho kenngoa ha fiber optic ka katleho marangrang a rarahaneng.
Lisebelisoa tsa Ntlafatso ea Matšoao ho Lipuisano tsa Thelefono
Ho ntlafatsa tshebetso ya marangrang ho hloka ho fetang feela thapo ya boleng bo hodimo ya feeder. Disebediswa tsa ntlafatso ya matshwao tse kang di-tapper, di-combiners, le di-repeater di bapala karolo ya bohlokwa ho bolokeng phetiso e matla ya matshwao. Di-combiners tse susumetsang di sebedisa di-transformer ho ntlafatsa karohano ya matshwao le ho fokotsa tahlehelo, e leng se etsang hore di sebetse hantle bakeng sa ditshebediso tse phahameng. Di-combiners tse sebetsang di sebedisa di-amplifier ho eketsa matla a matshwao, e leng se loketseng bakeng sa kgaso ya marangrang a hole. Diteko tsa tlhokomelo ya kamehla disebedisweng tsena di thusa ho hlwaya mathata a matshwao esale pele le ho tshehetsa tshebetso e tshepahalang ya marangrang. Di-booster tsa matshwao le di-repeater tsa RF cellular di hapa matshwao a fokolang ho tswa ditoreng tsa sele, di a hodisa, mme di a hasa hape ka hara marangrang. Tshebetso ena e ntlafatsa kgaso ya matshwao le boleng, haholo-holo dibakeng tse thata. Disistimi tsa antenna tse ajwang (DAS) di sebedisa motswako wa faeba le thapo ya coaxial ho aba matshwao ka katleho. Tsamaiso e nepahetseng ya thapo ya fiber optic le ho kenya ka hloko disebediswa tsena ho netefatsa tshebetso e ntle marangrang a sele le a faeba. Mawa ana a fokotsa tahlehelo ya matshwao, a fokotsa ho rarolla mathata, mme a tshehetsa puisano e se nang mathata ho pholletsa le mefuta yohle ya marangrang.
Litsebi tsa mehala ea thekeng li lokela ho hlahloba meralo ea motheo ea likhoele tsa bona tsa phepelo ea mehala ea thekeng khafetsa ka ho hlahloba matlo a sebeletsoang, tsela ea faeba, le phihlello ea tlhokomelo. Ho ntlafatsa ho ea litharollong tse tsoetseng pele ho ntlafatsa phetiso ea matšoao le marang-rang a puisano a thibelang bokamoso. Hlahloba marang-rang a hau, nahana ka likhetho tse tšepahalang tsa Telsto, 'me u amohele mahlale a macha ho netefatsa ts'ebetso e tsitsitseng ha litlhoko li ntse li hola.
LBH
Karolo e ka sehloohong ea cable ea feeder puisanong ea mehala ke efe?
Cable ea phepeloe tsamaisa lets'oao pakeng tsa lisebelisoa tsa seteishene sa motheo le li-antenna, e netefatsa puisano e tšepahalang bakeng sa lits'ebeletso tsa lentsoe le data.
Likhoele tsa feeder marangrang li lokela ho hlahlojoa hangata hakae?
Litsebi li lokela ho hlahloba likhoele tsa feeder bonyane hanngoe ka selemo ho boloka ts'ebetso le ho thibela ho hloleha ho sa lebelloang marangrang.
Na likhoele tsa Telsto feeder li ka sebelisoa bakeng sa ho kenya kantle?
E,Likhoele tsa phepelo ea Telstoli etselitsoe ho mamella tikoloho e thata, e leng se etsang hore li lokele lits'ebetso tsa puisano ea ka tlung le kantle.
Nako ea poso: Phuptjane-11-2026
