Amplifier kwi-antenna yeTV

Ngethuba lethu lobuchwepheshe be-digital, intsasa yentsapho kwiTV iphela ngokukhawuleza kwixesha elidlulileyo. Kodwa kwanamhlanje kubantu abaninzi i-TV ihlala yindwangu kuphela kwihlabathi kunye nendlela yokudibanisa ixesha lokuzonwabisa. Kwaye uninzi kangakanani umvakalelo obangelwa yimfono ephathekayo ephathekayo yethelevishini, ejikelezayo, ekhungethwe ngamaphikseli athile ... Kwiimeko ezininzi, ezi ngxaki ziphathwa ngokuthe ngqo - ukuthenga i-amplifier ekhethekileyo kwi-antenna ye-TV. Indlela yokukhetha nokufaka i-amplifier kwi- antenna ye- TV , makhe sizame ukuyifumana kunye.

Indlela yokukhetha i-amplifier ye-antenna ye-TV?

Kwimarike yanamhlanje, kukho imizekelo emininzi yee-amplifiers ze-TV ezibonakalisa ukuba kunzima ukugqiba ukuba yeyiphi na into efanelekileyo kwimeko ethile. Enyanisweni, yonke into ilula kakhulu - ukuba ukhetho olufanelekileyo lwanele ukwazi iiparitha ezimbalwa kuphela:

1. Umgama osondeleyo apho iindawo ezikufuphi ezisekufutshane ezithumela uphawu lwethelevishini. Kuxhomekeke kulo mda, umlinganiselo wokukhulisa umphambili ukhethiweyo. Umgama ophezulu kwisitishi esithumelayo ingaba ngumyalelo we-150 km. Ngomgama ongaphantsi kwe-10 km, i-amplifier ayifuni nonke - yanele ukhetha i-antenna ye-TV. Kuphosakele ukuba "ube nokratshi" kwaye uthenge i-amplifier, eneyona nto ephezulu kunokuba iyimfuneko - ezo zixhobo zinempahla yokuzikhumbuza kwaye endaweni yesithunzi esiphezulu, ekugqibeleni, ziya kuphazamiseka kuphela.
2. Uluhlu lweziganeko apho isalathisi sisasazwa yimitha, i-decimeter, njl. Isisombululo esihle naluphi na uluhlu luya kuba ukufakwa kwe-amplifier ye-broadband ye-antenna yendalo yonke ekwazi ukufumana amagagasi nayiphi na imvama. Kodwa umphumo ongcono kakhulu uya kufumaneka ngokufaka isampuli esincinci-bendi esisebenza kwibala elithile.
3. Uhlobo lwe-antenna efakwe kwi-TV. Ngokomzekelo, kuma-antennas omabonakude ohlobo lwe-trellis, umqondiso uphuthunyiswe ngoncedo lwe-swa amplifiers esebenza kwi-49-790 MHz. Kodwa ii-antenna ezidume kakhulu zangaphandle kwi-Locus yeTV zisebenza kakuhle kunye ne-LSA amplifiers.
4. Xa ukhetha oko kuyafaneleka ukuthobela ingqalelo yesandi somsindo we-amplifier - encinci le parameter, bhetele umfanekiso uza kugcina ube kwisikrini seTV.

Ndingayifaka njani i-antenna amplifier yeTV?

Ukufakwa kweemodeli zanamhlanje ze-amplifiers kwi-antenna ye-TV kulula kangangokuba kwanomntu odelele kude nobunjineli benomathotholo unokwenza. Ukunikezelwa kwamandla kunikezelwa kwisixhobo sokukhulisa amandla, apho i-amplifier ixhunyiwe kumncedisi wokunikezelwa kwamandla. Ukusetyenziswa kwamandla kweso sixhobo kuncinci kwaye ngokuqhelekileyo kwimiyalelo ye-10 W. Xa ufaka i-amplifier ngqo kwi-antenna, umzobo wesibambiso usetyenziswa kwi-adapter ekhethekileyo ye-adapter. Xa usebenzisa i-fowuni efanayo, i-amplifier ifumana amandla ngokuthe ngqo kwi-cable coaxial, kanye ne-signal ye-TV. Le adapter ineziphumo ezimbini: enye idibanisa ikhebula kwi-antenna ye-TV, kunye nezinye iziphumo zixhunyiwe kwisixhumo se-antenna seTV, ngelixa i-adapter ngokwayo ixhunyiwe kumandla omzi.

Xa ukhetha indawo yokufaka i-amplifier ye-antenna, khumbula ukuba ukusondeza kwintsimbi, kulunge ukuba umqondiso uza kuba. Kule meko, i-amplifier kufuneka ikhuseleke ngokuthembekileyo kwimpembelelo yezulu. Xa usebenzisa ii-antenna zangaphakathi kunye ne-amplifier yeTV, okokugqibela kungasungulwa ngqo kwi-antenna okanye kumgama omfutshane ukusuka kuyo.