Cov TV teeb liab amplifier thiab nws cov variants

Raws li kev xyaum qhia tau hais tias, daim duab nyob rau TV screen tsis yeej ib txwm siav tus neeg muas zaub rau lawv zoo. Nyob rau hauv xws li mob feem ntau yuav pab tau TV teeb liab amplifier - ib tug ntaus ntawv uas tso cai rau koj mus muab qhov zoo tshaj plaws qib ntawm receiver kawm. Nws tsis tau poob nws qhov tseeb txawm thaum lub sij hawm ceev ceev txoj kev loj hlob ntawm cable technology. Qhov tseeb hais tias xws li ib tug ntaus ntawv yuav siv tau los ntawm cov neeg raws li ib tug collective tes hauj lwm, thiab cov "cable" subscribers.

Daim ntawv thov ntawm lub teb chaws

Lub amplifier ntawm ib tug TV teeb liab mus rau muab ib lub tsev yog lub zoo meej tov rau cov neeg nyob sab nraum lub zos. Qhov tseeb yog tias nyob rau hauv lub qhaj ntawv ntawm tau ntawm kev twb kev txuas mus rau lub cable network, cov neeg pluag teeb liab txais tos kav hlau txais xov, los yog tsuas yog lub xub ntiag ntawm ob peb receivers (TVs), qhov no ntaus ntawv yog indispensable. Qhov no yog tshwj xeeb tshaj yog muaj tseeb ntawm cov chaw uas cov theem ntawm tej yam ntuj tso suab nrov muaj feem xyuam rau qhov zoo ntawm lub teeb liab. Nws yuav tsum tau muab sau tseg tias nyob rau hauv xws li mob, kws txawj pom zoo kom siv xws li nyob rau hauv view ntawm me ntsis misalignment qib uas tuab lub tswv yim teeb liab. Ua ntej pab lub TV teeb liab fais theem yog raws li nyob rau hauv txhua channel nyias.

kav hlau txais xov amplifiers

Nyob rau hauv lub rooj plaub uas lub teeb liab receiver yog nyob deb deb ntawm lub TV chaw nres tsheb, thiab nyob rau hauv thiaj li yuav kom txawm peem rau losses uas tshwm sim rau ntev cables, nws yog tsim nyog los siv lub kav hlau txais xov amplifiers. Lawv feem ntau kuj raug xa mus rau raws li "active antennas". Nyob rau hauv kev siv, ib qho kev nce nyob rau hauv lub teeb liab zoo yuav tsum zoo ib yam (wideband) los yog phua (UHF thiab VHF).

Qhov kev xaiv ntawm amplifier

Ib tug heev lo lus nug tau txais kev pab txuam nrog xws li ib tug ntaus ntawv raws li ib tug TV teeb liab amplifier, "Yuav ua li cas mus xaiv ib tug haum ntaus ntawv," Nws yog tsim nyog los noj mus rau hauv tus account ib co tseem ceeb tsis. Tus thawj yog cov ua hauj lwm zaus band. Lub fact tias raws ntawm kev txais tos ntawm cov kav hlau txais xov nws tus kheej thiab lub amplifier yuav tsum phim. Lwm nam - ib tug tshaj plaws tso zis theem (yog tias zoo ntaus ntawv, qhov no daim duab nws tsis yog tsawg tshaj li 100 dB / UV). Qhov thib peb caveat yog hais tias lub nce yuav tsum tau raws li approximate rau qhov taw qhia 40 dB. Raug fais fab kev noj yog feem ntau nyob rau hauv lub chav 10 mus rau 60 ma. Yuav kom saib lub ntsab lug rau cov kev xaiv ntaus ntawv, nws yuav tsum tau muab sau tseg tias TV teeb liab amplifier yuav tsum muaj tus loj tshaj tau nce ntawm tsawg zaus.

Amplifiers rau cable tes hauj lwm thiab lawv cov hom

Txhim kho lub amplifier yuav tshwm sim nyob rau hauv ntau qhov chaw ntawm lub network rau cable TV subscribers. Nyob rau hauv no hais txog, muaj ntau ntau yam qauv ntawm cov pab kiag li lawm. Lawv xaiv nyob feem nyob rau hauv qhov chaw nyob qhov twg tus ntaus ntawv yuav tsum tau ntsia. Lub ntsiab yam ntawm pab kiag li lawm - qhov no lub tsev nyob thiab lub cev amplifiers. Tus thawj hom yog cov uas yooj yim. Seev uas nws yog kho, feem ntau yog ntsia tau rau hauv lub qhov, qhov chaw uas koj yuav tsum tau txuas ntau TVs. Lub cev amplifiers, raws li nyob rau hauv lawv cov npe, yog teem rau cable tseem khiav. Nyob rau hauv Feem ntau, lawv muab tso nyob rau hauv ib tug kaw tuag-cam khwb cia rau lub cev, yog li lawv yuav tsum tau nyob rau hauv tej feem ntawm lub network.

satellite amplifiers

Satellite TV teeb liab amplifier ntaus ntawv yog tus tshiab. Nws muab cov neeg siv ib lub sij hawm mus rau noj ob lub TV thiab lub satellite teeb liab. Thaum uas siv los ntawm ib tug tej thaj chaw deb deb ntawm lub kav hlau txais xov tshwm sim teeb liab tsis raug mob thiab nws muab faib rau cov ntau receivers. Tej amplifiers tau muab kev los yog ua hauj lwm nyias.