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FMUSER 532-1602 kHz Antenna e Medium Wave Biconical Ho fihla ho 50kW Matla a Kenang
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Eng IH Medium Wave Btshwantsha Antenna le How It Wli-ork
Antenna e bohareng ea wave biconical antenna ke mofuta oa li-antenna tse pharalletseng tse sebelisoang hangata bakeng sa kamohelo ea seea-le-moea sebakeng sa maqhubu a mahareng a maqhubu. E na le likarolo tse peli tse lekanang tsa sebopeho sa cone tse behiloeng ntlha-ho-ntlha, tse ts'oanang le hourglass kapa li-ice cream cones tse kopantsoeng litheong tsa tsona. Moralo ona o ikhethang o lumella ho amoheloa ha mefuta e mengata e fapaneng ea maqhubu ka har'a sehlopha sa maqhubu a mahareng, hangata a tloha ho 530 kHz ho isa 1710 kHz.
Shebella letoto la rona la li-transmitter tsa 10kW AM sebakeng sa kaho Cabanatuan, Philippines:
Antenna e bohareng ea maqhubu a biconical e sebetsa ho ipapisitse le molao-motheo oa mahlaseli a motlakase le kamohelo. Ha leqhubu la motlakase, le jereng lets'oao la seea-le-moea, le fihla lenakeng, le etsa hore ho be le maqhubu a motlakase likarolong tsa lonaka. Hona joale sena se phalla pakeng tsa li-cones tse peli, 'me se theha sebaka sa motlakase ho pota-pota antenna.
Sebopeho sa symmetrical antenna ea biconical e netefatsa hore lebala la makenete ea motlakase le khanya ka ho lekana ka mahlakoreng 'ohle, ho etsa hore e be omnidirectional. Ka lebaka leo, antenna e khona ho tšoara melaetsa ea seea-le-moea ho tloha mahlakoreng 'ohle, e lumella ho amoheloa ka mokhoa o tšepahalang ho tsoa mahlakoreng a sa tšoaneng.
Likarolo tse nang le sebopeho sa khoune tsa antenna ea biconical li entsoe ka hloko ho fihlela molumo oa maqhubu a maqhubu a mahareng a mahareng. Resonance ena e nolofalletsa phetiso e nepahetseng ea matla a magnetic a amoheloang ho moamoheli kapa sistimi ea khaso.
Ka lebaka la bokhoni ba eona bo pharaletseng le kamohelo ea omnidirectional, antenna e bohareng ea maqhubu a biconical e sebelisoa haholo lits'ebetsong tsa khaso ea seea-le-moea. Bokhoni ba eona ba ho hapa matšoao ho tsoa mahlakoreng 'ohle bo etsa hore e be bo loketseng bakeng sa maemo ao ho hlokahalang kamohelo e tsitsitseng le e tšepahalang. Moralo le ts'ebetso ea antenna e bohareng ea wave biconical antenna e kenya letsoho katlehong ea eona ho netefatsa phetiso e nepahetseng le kamohelo ea mats'oao a seea-le-moea a mahareng.
Main Features
- No Ground Grid: Sebopeho sa biconical se felisa tlhokahalo ea marang-rang a fatše, e lumellang sebaka sa maoto a compact. Ho feto-fetoha ha maemo ho etsa hore antenna e kenngoe marulelong kapa maralleng, e fana ka likhetho tse fapaneng tsa sebaka.
- Botsitso bo Haholo: Likhoune tse ka holimo le tse ka tlaase li thusa ka ho toba ho phalla ha maqhubu a seea-le-moea, ho sa amehe ke lintlha tse sa tsitsang tse kang ho hanyetsa mobu, maemo a mobu, limela, linako tsa selemo le boemo ba leholimo. Li-vacuum capacitor tse ikhethileng tse ikhethileng tse nang le matla a phahameng a mocheso le mocheso o phahameng li netefatsa ts'ebetso e tsitsitseng, esita le libakeng tse nang le phapang ea mocheso e fetang likhato tse 60 ho pholletsa le selemo, ntle le ho hloka liphetoho tsa letsoho.
- Tšilafalo e tlase ea Motlakase: Antenna ea biconical e sebelisa mokhoa o ikhethileng oa ho tsamaisa, e netefatsang molumo o felletseng oa radiator ka maqhubu a sepalangoang. Ka lebaka leo, sebaka sa mahlaseli se lula sebakeng se haufi sa antenna, se fokotsa tšilafalo ea motlakase le ho kena-kenana le mehaho e potolohileng. E ka nkoa e le antenna e nang le botsoalle ba tikoloho kapa "e tala".
- Katleho e Phahameng ea Radiation: Ho ba sieo ha tahlehelo ea ho hanyetsa fatše, ho kopantsoe le mokhoa o ikhethang oa ho bapisa o sebelisitsoeng marang-rang a ho romelloa, ho ntlafatsa ts'ebetso ea tekanyo ea maqhubu a emeng le bandwidth. Ka ho fetisetsa matla a ho kenya ka kotloloho ho radiator ho ipapisitsoe le karo-karolelano ea ts'ireletso, antenna e fihlella ts'ebetso e ts'oanang ea radiation le ea setso sa λ/4 wavelength antenna ha e ntse e fokotsa boholo ba eona haholo.
- Tšireletso e Sebetsang ea Lehalima: Inductance ea marang-rang e tsamaellana ho netefatsa hore inductance ea ho tsoa ho radiator ho ea fatše ha e fete 50 µH, e leng karolo ea 1/40 feela ea ho tsoa ha tora ea setso. Tšireletso ea mojaro khahlanong le matla a lehalima ke <0.3 Ω (short circuit inductance <1 µH), e hlahisang phello e ntle ea tšireletso ea lehalima.
- Polokeho, Botšepehi, le Tlhokomelo ea Mahala: Khoune e tlase e tsitsitseng le e ka tšeptjoang e na le motheo oa sebopeho sa li-tube tse nne, ha molamu o khanyang oa khoune e kaholimo le sebopeho sa li-rod-fin li fana ka khanyetso e fokolang ea moea. Sebaka se mahareng se kenyelletsa sebopeho sa ts'ireletso e etselitsoeng ka ho khetheha hammoho le lisebelisoa tse ngata tse kopaneng, ho netefatsa ho hanyetsa moea le litšisinyeho tsa lefatše. 'Mele oa tora o na le masenke a chesang ka ho felletseng, a fana ka ts'ebetso e ntle ea anti-corrosion mme ha a hloke tlhokomelo.
songolo
Mabitso | songolo | Ke Hobane’ng ha e le Bohlokoa |
---|---|---|
Ho sebetsa khafetsa | 531—1602 kHz | Mefuta e fapaneng ea maqhubu ao sesebelisoa se sebetsang ho ona. E etsa qeto ea hore na sesebelisoa se ka amohela le ho fetisa maqhubu a mang. |
Matla a ho kenya | 1-50 kW | Lethathamo la maemo a matla ao sesebelisoa se ka sebetsanang le ona. E bolela boholo ba matla a matla a ka kenngoa ka har'a sesebelisoa. |
Tlhaloso ea Antenna | 50 ± 5 Ω | Litšobotsi tsa ho hanyetsa le ho itšoara ha sebopeho sa antenna. E netefatsa phetiso e nepahetseng ea matla pakeng tsa antenna le sesebelisoa. |
Carrier Frequency Standing Wave Ratio | VSWRf0 ≤ 1.1 | Tekanyo ea hore na sesebelisoa se lumellana hantle hakae le "antenna impedance", e bonts'ang katleho ea phetisetso ea matla le boleng ba matšoao. |
Phetiso ea bandwidth | Δf ≥ 9 kHz | Lethathamo la maqhubu ao sesebelisoa se ka fetisang mats'oao ho ona. E ama palo ea boitsebiso bo ka fetisoang ka nako e le ’ngoe. |
Matla a Mahlaseli | E lekana le tora ea setso e bolelele ba λ/4 | Papiso ea bokhoni ba sesebelisoa sa ho fetola matla a ho kenya maqhubu ho ba maqhubu a seea-le-moea ho ea tora ea setso. |
Matla a ho Hanyetsa Moea | Level 13 (e ka eketsoa ho boemo ba 17 kamoo ho hlokahalang) | Matla a sesebelisoa a ho mamella matla a moea a boholo bo itseng. Maemo a phahameng a bontša khanyetso e ntle le botsitso. |
Matla a Tšisinyeho ea Lefatše | Ka holimo ho likhato tse 7 | Boemo ba ts'ebetso ea seismic eo sesebelisoa se ka e mamellang ntle le tšenyo e kholo ea sebopeho. Matla a phahameng a bolela ho tiea ho hoholoanyane. |
Bophelo ba Tšebeletso | Ho feta lilemo tse 30 | Nako e lebelletsoeng ea nako ea bophelo ea sesebelisoa. E netefatsa ts'ebetso ea nako e telele le ho tšepahala. |
sebetsa Mode | Maqhubu a le Mong/Maqhubu a Mabeli | Mokhoa oa ts'ebetso oa sesebelisoa, o se lumellang hore se sebetse ka sekhahla se le seng kapa maqhubu a mangata ho latela maemo a hlokahalang. |
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