Chii chatingaita kana tichidzokorora kuzvifadza?

Chii chinonzi mobile sign repeater self-excitation?

Kuzvinyandura kunoreva kuti chiratidzo chinokwidziridzwa neanodzokorora chinopinda kumagumo ekugamuchira chechipiri chekusimudzira, zvichikonzera kushanda kwesimba amplifier munzvimbo yakazara.Iyo inodzokorora-yega yekunakidzwa inongoonekwa mune isina waya inodzokorora.Nekuti iyo fiber optical inodzokorora inosanganiswa base station siginecha zvakananga, saka iyo fiber optical inodzokorora haizoburitse yekuzvifadza, fungidzira iyo fiber optical inodzokorora ine chiratidzo.Asi kana iwe usingakwanise kufona kana kutadza kufona mhando mufiber optical repeater.Muchiitiko ichocho, zvinokurudzirwa kutarisa uplink uye downlink attenuation uye repeater hardware.

Chii chinonzi self-excitation:

Semuenzaniso, shanduko yetembiricha inokonzera shanduko yeamplifier kuwana, kuzviparadzanisa nevamwe, uye base station paramita;ipapo, zvichakonzera kuwedzera kwekupinza kweanodzokorora.Paunenge uchigadzirisa iyo inodzokorora, ndapota usaite zvakanyanyisa kukwidziridza uye gadzirisa kuwana zvakanyanya.Unofanira kusiya imwe nzvimbo yazvo.Kune vanodzokorora vane marekodhi ekukanganisa, zvinonetsa kuona wega-yekunakidzwa mune reverse chiteshi cheanodzokorora.Nekuti iyo yekumberi chiteshi cheanodzokorora inogara iine chiratidzo chekuisa kubva pachigadziko chiteshi, kana iyo inodzokorora ichizvifarira, iyo yekumberi amplifier inogona kuremerwa.Vamwe vanodzokorora vanoona kuti amplifier yakawandisa katatu.Vachadzima anodzokorora nekukurumidza uye kupa rekodhi yakajeka yekutadza.Zviri nyore kuwana.Nekudaro, iyo yekuisa chiratidzo cheiyo reverse chiteshi amplifier inosiyana zvakanyanya.Iyo nharembozha inotumira haisi nguva dzose iri munzvimbo yekutumira, uye chinhambwe hachiwanzo kufanana.

Mune zvimwe zviitiko, zvinokonzeresa reverse chiteshi amplifier kuzvifadza.Iyo amplifier inodzokera kune yakajairika nekuda kwekukasira kurasikirwa kwekuisa.Iyo yekuzvifadza yega reverse chiteshi amplifier haingori masekondi mashoma mapfupi uye asina kujairika.Dzimwe nguva haizvinakidze kamwe kwemaawa akati wandei, izvo zvakanyanya kuoma kugadzirisa kukanganisa.

Kana iyo inodzokorora ikaiswa, nharembozha inogona kazhinji kupindura nhare yemuno kana nhare mbozha ichitaura nenhare yemuno.Zvakadaro, nhare yemuno inodimburwa pakupindura nhare mbozha, uye ruzha rwakaderera.Inogona kukonzerwa nekuzvifadza kwega reverse chiteshi amplifier yeanodzokorora.

Kana iyo inodzokorora ikaiswa zvisina kunaka, iyo transceiver antenna yekuzviparadzanisa haina kukwana.Kuwana kwese kweanodzokorora kwakanyanya kukosha.Chiratidzo chinobuda chichadzoserwa kune chekuisa mushure mekunonoka, zvichikonzera kukanganisa kwakanyanya kweiyo inodzokorora inobuda chiratidzo uye kuzvifadza.Iyo frequency spectrum yechiratidzo self-excitation ichaitika.Mushure mekuzvifadza, kunaka kwechiratidzo chechiratidzo kunowedzera kuipa, iyo inokanganisa zvakanyanya kunaka kwekufona uye inokonzera madonhwe ekufona.

Pane nzira mbiri dzekukunda iyo self-excitation phenomenon.Imwe ndeyekuwedzera yekuzviparadzanisa pakati peanopa antenna uye retransmission antenna, uye imwe yacho kudzikisa kuwana kweanodzokorora.Kana kufukidzwa kweanodzokorora kuchidikanwa kuve kudiki, kuwana kunogona kuderedzwa.Kana iyo inodzokorora ichidikanwa kuvhara nzvimbo yakakura, iyo yega inofanira kuwedzerwa.

- Wedzera yakatwasuka uye yakatwasuka chinhambwe cheantenna

- Wedzera zvipingamupinyi, sekuisa mambure ekudzivirira, nezvimwe

- Wedzera kutungamira kweanopa antenna, sekushandisa parabolic antenna

-Sarudza retransmission antenna ine gwara rakasimba, senge inotungamira kona antenna

-Gadzirisa kona uye gwara reanopa uye retransmitting antenna kuitira kuti zvive kure kubva kune mumwe nemumwe sezvinobvira.