Amplifier Eriya don TV: ka’idar aiki, zaɓi, DIY

Matsalar siginar TV mai ƙarfi mara isasshe, saboda wanda ingancin hoton akan allon TV ya ragu, an warware shi tare da taimakon amplifier siginar da ke fitowa daga eriyar TV. Kuna iya zaɓar na’urar da ta dace daga ƙimarmu na mafi kyawun samfuran ko, idan kuna da ɗan gogewa, yi irin wannan na’urar da kanku.

Menene Amplifier Antenna TV?

Amplifier talabijin na’ura ce don haɓaka siginar talabijin da rage tsangwama, wanda ke ba da hoto mafi kyau. Na’urar tana taimakawa wajen haɓaka hankali, iyakance ta tasirin amo, da ramawa ga asarar siginar talabijin da aka karɓa a cikin kebul na coaxial. https://youtu.be/GI89hrNQ-BA

Abubuwan ƙira na amplifier don eriya

Amplifiers don eriyar talabijin suna da sauƙi kuma suna iya bambanta a cikin ƙira, suna iya haɓaka siginar dijital da analog. A wasu lokuta, ana kafa su ta alluna biyu tare da aiwatar da da’irar rage amo. Ɗayan da’ira shine matattara mai ƙarfi, na biyu yana da capacitor mai sarrafa mitar. Mai sarrafa yana taimakawa don samun matsakaicin siginar TV na 4.7 dB tare da mitar aiki na 400 MHz. Don samun kwanciyar hankali, suna amfani da stabilizer tare da electrolyte da gadar diode da ke cikin kewayenta. Ana haɗa amplifier zuwa mai karɓar TV ta amfani da capacitor. Duk amplifiers don eriya suna sanye da wutar lantarki, kawai wurin da wurin yake ya bambanta (gina da waje). Na’urar da aka gina a ciki tana aiki da kyau tare da ingantaccen ƙarfin lantarki kuma za ta cinye har zuwa 10 V. Idan na’urar ta ƙone, kuna buƙatar maye gurbin duk na’urar eriya. Saboda wannan dalili, a gaban wutar lantarki, zai zama mafi dacewa don amfani da raka’a na waje. Sun fi girma kuma suna da ƙarfin shigarwa daban-daban dangane da amplifier (5, 12, 18, 24 V).

Rabewa

Don raƙuman ƙasa na tashoshin TV, ana amfani da kewayon mitoci (MV) da mitoci (UHF). A cikin akwati na farko, ana amfani da mita 30-300 MHz, kuma a cikin na biyu – 300-3000 MHz. Dangane da kewayon mitar da aka karɓa, amplifier na iya zama:

• broadband – don rufe nau’in raƙuman ruwa mai fadi;
• kewayon – yana amfani da kewayon mita ko decimeter don aiki;
• multiband tsara don duka jeri.

A cikin al’ada na al’ada, tare da sigina mai kyau, amplifier mai watsa labarai ya isa. Tare da rashin liyafar mara kyau, yana da kyau a yi amfani da na’urar da aka yi niyya ƙunƙunta, wacce ke yin rawar ta a cikin wani kewayon fiye da na’urar watsa labarai.

Ana yin watsa shirye-shiryen dijital ta amfani da ma’aunin DVB-T2 . Don tashoshin TV na dijital, kewayon UHF kawai ake amfani da shi, don haka amplifier don dijital TV na daidaitaccen DVB-T2 ya dace da watsa shirye-shiryen TV na dijital. Gwajin amplifier na eriya don gidan talabijin na dijital na DVB-T2: https://youtu.be/oLRaiYPj6sQ Amplifiers kuma sun bambanta bisa ga ƙarfin lantarki da ake buƙata:

1. Volt goma sha biyu sun fi yawa. Za su buƙaci ƙarin ƙarin wutar lantarki, wanda a wasu lokuta ana iya daidaita shi.
2. Ana iya haɗa volt biyar zuwa na’urar gyara TV ko TV ta amfani da kebul na coaxial. A matsayinka na mai mulki, an gyara su akan eriya.

Dangane da nau’in talabijin, ana rarraba na’urorin haɓakawa a cikin tsari mai zuwa:

• eriya;
• tauraron dan adam;
• na USB.

Kebul da tauraron dan adam amplifiers ana amfani da su da wuya sosai, saboda sun riga sun watsa sigina mai inganci sosai. Wani lokaci ana amfani da amplifier don gidan talabijin na USB idan an haɗa kebul zuwa TV da yawa a lokaci ɗaya. Ana amfani da na’urorin ƙara girman eriya sau da yawa.

Fa’idodi da rashin amfani na ƙarar siginar TV

Lokacin kafa cibiyar sadarwar gidan talabijin na gida, ya kamata ku tuna: idan kun yi amfani da da’irori masu haɓakawa da yawa, to, za a sami gagarumin murdiya na rafi na bidiyo. Dangane da wannan, ya kamata a kiyaye adadin amplifiers na eriya zuwa ƙarami.

Fasalolin Amplifier sun haɗa da:

• ikon karɓar ko da mafi raunin siginar TV;
• kasancewar ƙananan ƙananan ƙararrawa;
• yuwuwar haɓaka siginar lokaci guda a cikin mitoci da yawa.

Lalacewar na’urorin haɓakawa sune:

• idan aka yi amfani da na’urar faɗakarwa, akwai yuwuwar yin wuce gona da iri na siginar siginar TV ɗin da aka halatta, don haka dole ne a sanye shi da na’ura mai sarrafawa don jeri daban-daban don kawar da irin wannan matsala;
• tashin hankali na na’urar;
• mai saukin kamuwa da tsawa;
• yuwuwar asarar siginar TV a fitarwa.

Amplifiers suna gyara siginar daga eriya zuwa TV. Dangane da wannan, zaɓin yana rinjayar wurin da kuma buƙatar kayan aikin talabijin. Amplifier zuwa eriyar TV a wajen birni yana taimakawa wajen magance matsala mai wahala ta samun siginar talabijin mai inganci.

Babban ma’auni don zaɓar amplifiers siginar talabijin

An zaɓi amplifier don eriyar talabijin bisa ga ka’idojin fasaha na na’urar kuma daidai da abubuwan waje (misali, wuri da yanayin shigarwa). Abu mafi mahimmanci shine la’akari da halayen da suka shafi ingancin siginar talabijin, wanda suke amfani da ƙarin na’urori.

Kewayon mitar aiki

Akwai na’urori guda uku masu alaƙa da kewayon mitar: TV, eriya , da ƙarawa. Da farko, an zaɓi eriya. A cikin wannan zaɓin, ya zama dole a yi la’akari da fifikon kunkuntar da aka jagoranta akan masu fadi da yawa dangane da ƙarfin sigina. Idan mai maimaita yana kusa da wurin liyafar, to, “duk-wave” ya dace, yana iya rufe kewayo mai faɗi. Karɓar sigina daga hasumiya mai nisa na TV za a iya cimma ta ta amfani da na’urar da ta dace da iyakataccen kewayon mitar (misali, VHF ko UHF).

Dangane da mitar amsawar eriya, an zaɓi amplifier. Idan kewayon bai dace ba, na’urar da ke akwai ba za ta iya aiki ba.

Siffar hayaniya

Tare da taimakon amplifier, siginar-zuwa-amo ya kamata a daidaita shi zuwa sama. Ganin cewa kowace na’ura tana karɓar hayaniyar ta yayin watsa bayanai, yayin da siginar ke ƙaruwa, su ma suna ƙara girma. An yarda gaba ɗaya cewa ƙimar tasirin amo bai kamata ya wuce 3 dB ba. A ƙarƙashin irin waɗannan yanayi kawai za mu iya magana game da garantin ingantacciyar ingancin watsa siginar TV. Koyaya, sabbin na’urori na iya samun ƙarancin ƙimar 2 dB.

Riba

Kasancewar mafi girman ma’auni mai yuwuwa baya bada garantin mafi kyawun watsawa. Bugu da ƙari, tare da haɓakawa da yawa, siginar TV ɗin za ta gurɓata tare da kishiyar sakamako (yankewa ko yin lodi). Ana amfani da dB don auna ma’aunin, kuma matsakaicin ƙimarsa sune:

• decimeter – daga 30 zuwa 40 dB;
• mita – 10 dB.

Daga wannan ya biyo bayan cewa decimeter zai sami ɗaukar hoto daga tashoshin TV 20 zuwa 60, kuma mita – ba fiye da 12. Tare da karuwa da karuwa ta 15-20 dB, zamu iya magana game da sakamako mai kyau.

Lokacin zabar amplifier ta hanyar factor, kuna buƙatar dogara akan ainihin yanayi da matakin liyafar. A matsayinka na mai mulki, ana la’akari da nisa daga hasumiya ta TV (relay). Idan hasumiya ta TV tana cikin layin gani kai tsaye, to ba a buƙatar siyan amplifier.

Eriya mai aiki ko m

Eriya don karɓar siginar TV na iya zama m da aiki:

• eriya mai wucewa tana karɓar sigina kawai saboda siffarsa;
• an bayar da amplifier na musamman don eriya mai aiki , wanda ke ƙara ƙarfin siginar mai amfani.

Dole ne a samar da eriya mai aiki tare da ƙarin ƙarfi daga cibiyar sadarwa. A matsayinka na mai mulki, an haɗa na’urar haɓakawa ta amfani da adaftar adaftar 9 ko 12 V. Idan na’urar tana waje, to kana buƙatar rufe shi daga ruwan sama. Tabbatar yin la’akari da bayanin da ke cikin umarnin masana’anta gargadi game da yuwuwar kutsawa idan na’urar ta yi kuskure. Hakanan za’a iya canza eriya mai wucewa zuwa mai aiki ta ƙara ƙarawa gare shi. Wannan zaɓin na iya zama mafi dacewa fiye da lokacin siyan eriya tare da na’urar haɓakawa da aka gina a ciki – a yayin da aka sami raguwar ƙararrawa, ana iya maye gurbinsa cikin sauƙi. Kuna iya sanya shi ba kusa da eriya kanta ba, amma a cikin ɗaki ko a cikin ɗaki, wanda zai tabbatar da tsawon rayuwar sabis na na’urar.

Yi da kanku mai aiki da eriya tare da amplifier don TV na dijital:

https://youtu.be/YfR9TgaDf1Q

TOP 6 Mafi kyawun Amplifiers na Eriya don TV

Wasu amplifiers sun shahara saboda sauƙi na na’urar su, ƙananan farashi da sauƙin shigarwa. Idan ya cancanta, zaka iya da kanka maye gurbin su da gyara su. Lokacin siyan amplifier na waje, kuna buƙatar kula da matsinsa. Ana canza na’urorin waje duk shekara 2 koda an kiyaye su. Saboda wannan dalili, yana da kyau a gwada neman wuri don amplifier a ƙarƙashin rufin.

Antenna amplifier F-02

Na’urar ƙara girman gangar jikin duka-ƙara mai ƙarfi da kebul. Yana aiwatar da haɓaka siginar talabijin a cikin mita da kewayon ƙididdigewa tare da kewayon aiki (1-12 k) da UHF (21-60 k). Riba – har zuwa 25 dB, adadi mai amo – har zuwa 2 dB, ƙarfin samar da wutar lantarki – 12 V. Ƙimar farashin – 350 rubles.

Delta UATIP-03 MV+DMV

Ƙaddamar da na’urar watsa shirye-shirye don amfanin mutum ɗaya a cikin mita (daga tashoshi 1 zuwa 12) da decimeter (tashoshi 21 zuwa 69). Ƙarfin wutar lantarki 12 V. Ƙimar farashin – 672 rubles.

SWA-999 don “grid”

Amplifier don eriyar Poland (“grid”) tare da kewayon mitar aiki daga 48 zuwa 862 MHz da wutar lantarki na 12 V. Gain – 28-34 dB. Ƙimar farashin – 113 rubles. [taken magana id = “abin da aka makala_376” align = “aligncenter” nisa = “600”]
Eurosky SWA-999 Amplifier[/taken magana] https://youtu.be/QvRGUGq_eOs

USB na ciki REMO (BAS-8102 5V)

Antenna amplifier multi-purpose amplifier wanda ke jujjuya eriya mai wucewa zuwa mai aiki kuma yana ba ku damar kawar da wutar lantarki don amplifier eriya. Riba – har zuwa 16 dB. Ƙarfin wutar lantarki – 5 V. Ƙimar farashin – 245 rubles.

REMO Booster-DiGi (BAS-8207)

Amplifier Eriya tare da matsakaicin riba na tashoshi 21-69. Ƙarfin wutar lantarki – 12 V. Ƙimar murya – bai wuce 2.8 dB ba. Kiyasta farashin – 425 rubles.

Tsarin Planar 21-69 FT

Amplifier na eriya don kebul tare da kewayon mitar daga 470 zuwa 468 MHz da riba har zuwa 22 dB. Ƙarfin wutar lantarki – 12 V. Siffar murya – 4 dB. Matsakaicin farashin shine 350 rubles.

Yadda ake yin amplifier eriya don TV da hannuwanku?

Da farko kana buƙatar shirya kayan aiki da kayan aiki:

• aluminum farantin;
• waya tagulla;
• sashi;
• adaftan;
• kwayoyi, kusoshi, washers, sukurori masu ɗaukar kai;
• kebul na talabijin;
• bel na roba daga tarakta;
• tef mai rufi;
• dunƙule da guduma.

Ko da kuna da kwarewa a irin wannan aikin, cikakken nazarin umarnin zai zama da amfani sosai. Musamman mahimmanci shine jerin waɗannan ayyuka da manufar kowane daki-daki. Algorithm na ayyuka shine kamar haka:

1. Ana yanke ramuka (uku a cikin roba, ɗaya a cikin farantin).
2. Hakanan zaka buƙaci rami a cikin madaidaicin da wurin eriya.
3. Dole ne a lanƙwasa waya kuma a haɗa shi a ƙarshensa tare da dunƙule kai tsaye.
4. An haɗa kebul ɗin zuwa adaftan kuma haɗin ya keɓe.
5. Dukkan bayanai sun taru. A ƙarshe, yanki na haɗin kebul tare da waya an rufe shi da tef ɗin lantarki.

Na’urar haɓaka da kanta tana da wani fa’ida – cewa ba lallai ba ne don saita na’urar da aka gama. An haɗa shi da sauƙi: an haɗa allon zuwa eriya kuma ana duba ingancin riba. Yayin aiki da na’urar kada a sami hayaniya ta waje. Don amplifier, yana da kyau a shirya wani nau’i na shinge don kare shi daga tasirin muhalli. Don samun hoto mai kyau da sauti, za ku buƙaci ba kawai amplifier ba, har ma da zaɓi na wurin hawan da ya dace. Hakanan zaka buƙaci sandar walƙiya. Antenna na Biya don TV na dijital tare da amplifier: https://youtu.be/axJSfcThfSU

A farkon aiki, wajibi ne don saka idanu da ingancin haɓakar siginar talabijin, kuma idan matsaloli sun faru, dole ne a kawar da su nan da nan.

Mai haɓaka eriya don TV ɗin ku zai taimaka muku guje wa tsangwama da sauran matsalolin da ke da alaƙa da rashin karɓar siginar TV. Lokacin siyan na’ura, kuna buƙatar mayar da hankali kan mahimman ma’auni masu mahimmanci, kuma lokacin yin shi da kanku, akan daidaitaccen jerin ayyuka da zaɓin da ya dace na wurin shigarwa.