Ndi mlongoti wotani womwe umafunikira pa TV ya digito mdziko muno – panja ndi m’nyumba

Ndi mlongoti wamtundu wanji womwe umafunikira pa TV ya digito mnyumba yakudziko, msewu ndi m’nyumba. [id id mawu = “attach_10926” align = “aligncenter” wide = “750”] Mlongoti wakunja
wa kanyumba kachilimwe [/ mawu]

Mwachidule za TV ya digito yanyumba zazing’ono zachilimwe – zomwe muyenera kudziwa?

Kuti munthu akhale ndi moyo wabwino m’dzikoli, amafunikira chidziwitso chokhazikika. Udindo wofunikira pakulenga kwake umasewera ndi kupezeka kwa wailesi yakanema yapamwamba. Nthawi zambiri, zitha kuperekedwa ngati mukudziwa momwe mungachitire bwino. Kuti mulandire chizindikiro cha TV, muyenera kukhazikitsa mlongoti wa digito. Kusankha kwake kumachokera pa kupezeka kwa mwayi woyenerera m’deralo – kukhalapo kwa wobwerezabwereza ndi mtundu wina wa chizindikiro. Izi nthawi zambiri zimakhala zotheka:

1. Televizioni yapadziko lapansi imatha kuwulutsidwa mumayendedwe a mita kapena ma decimeter. Antennas opangidwa kuti azilandira nthawi zambiri amagwiritsidwa ntchito m’nyumba zachilimwe. Ubwino wawo ndi wotsika mtengo, ndipo choyipa chawo ndi kuthekera kwawo kochepera poyerekeza ndi mitundu ina. Makamaka, ndi ochepa chabe a ma TV omwe amapezeka nthawi zambiri. Njirayi ingakhale yoyenera kwa iwo omwe samakonda kuyendera nyumba ya dziko ndipo sakufuna kugula zipangizo zodula. [id id mawu = “attach_10924” align = “aligncenter” wide = “458”] Kanema wa kanema wapadziko lapansi atha kulandiridwa ndi mlongoti wakunja[/caption]
2. Chizindikiro cha digito ndi chapamwamba kwambiri. M’dera lakumidzi, pafupifupi mawayilesi 20 amtundu wamtunduwu amapezeka nthawi zambiri. Kuti mulandire chizindikiro cha digito, nsanja yamtundu uwu iyenera kupezeka. Kuti mutsimikizire kulandiridwa kwa TV kwapamwamba, nthawi zambiri simudzasowa mlongoti wamtundu woyenera, komanso chochunira cha DVB-T2. Mumitundu yatsopano yapa TV, kulandila kumatheka popanda kugwiritsa ntchito bokosi lokhazikika.
3. Pogwiritsa ntchito mbale ya satana , mukhoza kulandira njira zambiri. Pankhaniyi, palibe chifukwa cha nsanja yolumikizirana. Chizindikirocho chidzatumizidwa kuchokera ku satelayiti kupita ku mlongoti wolunjika. Kutengera ndi mtundu wake, zomanga zokhala ndi mainchesi 60 mpaka 90. Njira yomaliza imagwiritsidwa ntchito ngati chizindikirocho ndi chofooka. Zida zimenezi ndi zapamwamba kwambiri koma ndi zodula. Imodzi mwamavuto ofunikira kwambiri ndikuwonetsetsa chitetezo chake mdziko muno.

Njira yotsika mtengo kwambiri yomwe imapereka zabwino zolandirira komanso njira zosiyanasiyana zomwe zilipo ndikugwiritsa ntchito mlongoti kulandira kanema wawayilesi wa digito.

Ndi mlongoti wotani womwe umafunika pa TV ya digito m’nyumba ya dziko

Kusankha mlongoti m’nyumba yachilimwe kumafuna kuganizira magawo osiyanasiyana. Wogula ayenera kuganizira izi:

1. Ubwino wa kulandira chizindikiro kumadalira kukula kwa kupindula kwa mphamvu. Zimayimira chiŵerengero cha mphamvu za chipangizo chotumizira ndi kulandira. Mtengo uwu umayesedwa mu dBi. Kwa mtunda wopita ku nsanja yolumikizira yomwe sipitilira 50 km, mtengo wa 13 dBi umatengedwa kuti ndi wovomerezeka. Pamtunda waukulu, kuwonjezeka kwa mphamvu kuyenera kukhala kwakukulu.
2. Kukhalapo kwa amplifier kumathandizira kulandila bwino.
3. Chofunikira kwambiri ndi kuchuluka kwa ma frequency omwe amalandila. Ndikofunika kuti ziphatikizepo njira zomwe wosuta amafunikira.

Pogula, muyenera kulabadira mtundu wa chingwe coaxial ntchito . Zimadalira kwambiri chithunzi ndi phokoso lomwe mlongoti ungapereke. [id id mawu = “attach_10922” align = “aligncenter” wide = “1180”] Mlongoti wapa TV yapa
digito mdziko muno[/ mawu]

Tinyanga zamkati zoperekera wailesi yakanema ya digito

Iwo ali oyenerera pazochitika pamene wobwereza ali pafupi ndipo amapanga chizindikiro champhamvu cha televizioni. Komabe, ziyenera kukumbukiridwa kuti ubwino wa phwando udzakhudzidwa ndi makulidwe a makoma, kukhalapo ndi malo a mawindo, komanso zinthu zina zofanana. Mlongoti wa m’nyumba ndi wopangidwa pang’ono. Ngati ndi kotheka, imatha kukhala ndi amplifier ya chizindikiro. Ubwino wawo ndi wotsika mtengo, kumasuka kwa mayendedwe komanso kuyika kosavuta. Monga cholepheretsa, khalidwe la kulandila limaganiziridwa, lomwe limadzilungamitsa pokhapokha ngati pali chizindikiro champhamvu. Kuti mugwire ntchito, pamafunika kuwongolera mosamala kuti mupeze mawonekedwe apamwamba kwambiri a siginecha.

Mlongoti wakunja wa kanema wawayilesi wa digito

Zidazi zili ndi mphamvu zambiri ndipo zimapereka khalidwe lapamwamba la chizindikiro cholandiridwa. Minyanga yotereyi ndi yolunjika, yomwe imawonjezera kwambiri kuchuluka kwake. Kugwiritsiridwa ntchito kwa antennas akunja kumapindulitsa kwambiri, ngakhale kuti ndi mtengo wapamwamba, popeza amakulolani kuti mupeze khalidwe labwino la chizindikiro cholandira ngakhale kuchokera kubwereza kutali. Kuti muwongolere chizindikiro chomwe mwalandira, mutha kugwiritsa ntchito amplifier. Kuwonjezeka kwa magwiridwe antchito kumatha kufika 50%.

Momwe mungasankhire mlongoti

Posankha mlongoti, wogula ayenera kusankha zomwe chipangizocho chiyenera kukhala nacho. Pachifukwa ichi, zotsatirazi ziyenera kuganiziridwa:

1. Muyenera kusankha komwe mlongoti uyenera kukhala . Kusankhidwa kwa mlongoti womangidwa kapena wamkati kumadzilungamitsa pamaso pa chizindikiro cholimba cha televizioni. Ngati vutoli silinakwaniritsidwe, muyenera kugula mlongoti wakunja.
2. Muyenera kusankha mtundu woyenera . Njira yopindulitsa kwambiri ndiyo kugwiritsa ntchito decimeter. Ngati chizindikiro cha digito sichinagwire bwino, muyenera kuganizira zogula amplifier pa chizindikiro chomwe mwalandira.

3. Muyenera kusankha mlongoti womwe ukufunika, wogwira ntchito kapena wongokhala . Poyamba, iyenera kukhala ndi amplifier yomangidwira. Ndizoyenera pamene chizindikiro chochokera kubwereza sichili champhamvu mokwanira. Kwa mlongoti wokhazikika, mutha kugwiritsa ntchito amplifier yomangidwa. Pamapeto pake, ndizotheka kusankha amplifier yoyenera. Pa nthawi ya mvula yamkuntho, izi zimachepetsa chiopsezo cha kutenthedwa kwa amplifier, chomwe chimakhala chokwera kwambiri pa chipangizo chogwira ntchito. Mu gawo lakunja lakunja, amplifier ili m’chipindamo, zomwe zimawonjezera kudalirika kwa ntchito.
4. M’pofunika kuganizira mtunda kwa nsanja yapafupi relay . Ngati ili pafupi, mutha kugwiritsa ntchito mlongoti womangidwa mkati kapena wamkati. Apo ayi, ndi bwino kusankha kunja.
5. Mtengo wa chipangizocho uyenera kufanana ndi kuthekera kwa wogula. Komabe, kuti mugule mlongoti, muyenera kusankha chipangizo chapamwamba kwambiri.
6. Ndikofunika kuganizira ubwino wa chithunzi chotsatira ndi phokoso , komanso kusankha chitsanzo chomwe chili ndi kudalirika kwakukulu ndi moyo wautumiki. Pankhaniyi, ziyenera kuganiziridwa kuti mlongoti wakunja, ngakhale umapereka chithandizo chabwino cha chizindikiro, komabe umakhala ndi chinyezi, mphepo, kuwonongeka kwa makina ndi zinthu zina.

7. M’pofunika kuganizira kukhalapo kwa m’mabulaketi okwera ndi kulabadira zinthu kupanga. Nthawi zambiri amagwiritsidwa ntchito ngati chitsulo kapena aluminiyamu. Pachiyambi choyamba, mlongoti udzakhala wolimba kwambiri, wachiwiri sudzakhudzidwa ndi dzimbiri.
8. Zipangizozi zimatha kugwiritsa ntchito mawonekedwe osiyanasiyana komanso kapangidwe kake . Asanakhazikitse, wogwiritsa ntchitoyo ayenera kuganizira momwe kukhazikitsa kungakhalire kosavuta, komanso kulabadira kugwirizana kwa chipangizocho ndi mapangidwe omwe alipo.
9. Pogula, muyenera kuwonetsetsa kuti pali mulingo woyenera wa kukana kunyamula mphepo e. Imadziwika ndi zinthu ziwiri – kuthamanga kwamphepo kovomerezeka komwe kumatheka kugwira ntchito bwino, komanso kuthamanga komwe unit idzawonongedwa. Makhalidwe a 20 ndi 40 ndi abwino, mwachitsanzo, kwa dacha m’malo abata m’dera lotsika. Mukakhala paphiri, muyenera kugwiritsa ntchito 25-30 ndi 50.

Nthawi zina, musanasankhe mlongoti, ndizomveka kufunsa oyandikana nawo omwe ali ndi mlongoti. Azitha kugawana zomwe adakumana nazo pakugwiritsira ntchito chipangizochi.

Mlongoti wa TV ya digito kupita kudziko lakunja – zomwe mungasankhe, tinyanga zogwira ntchito komanso zopanda pake: https://youtu.be/eX9gUHRO5ps

Ndi mlongoti uti woti musankhe pawayilesi yakanema ya digito m’nyumba yachilimwe – mitundu yabwino kwambiri ya 2022

Posankha mlongoti wa digito wokhalamo m’chilimwe, mukhoza kuyang’ana pa zitsanzo zomwe zatsimikizira khalidwe lawo pochita. Zotsatirazi zikufotokoza otchuka kwambiri mwa iwo.

Locus Meridian-07 AF TURBO L025.07DT

Mlongoti uwu wapangidwa ndi aluminiyamu. Ndi yopepuka komanso yaying’ono kukula kwake. Mapangidwewa amapereka chizindikiro chabwino cha TV ndipo amapereka chithunzi chabwino komanso phokoso. Chidacho chimaphatikizapo amplifier yomwe ingapereke chithandizo ngakhale patali kwambiri ndi nsanja yolandirirana. Monga kuipa, ziyenera kudziwidwa kusowa kwa mabatani oyika, komanso mphamvu yogwiritsira ntchito amplifier. Zomalizazi zidzafunika kugulidwa padera.

Harper ADVB-2440

Mlongoti uwu umayikidwa kunja, zomwe zimatsimikizira kulandiridwa bwino kwa mapulogalamu a pa TV. Mapangidwewa ali ndi amplifier yomangidwa. Mlongoti umakulolani kuti mulandire mayendedwe a analogi ndi digito okhala ndi chithunzi chapamwamba komanso mawu. Mapangidwe ake ndi osakanikirana, opepuka komanso ali ndi mapangidwe okongola komanso oyambirira. Zokwera za antenna zikuphatikizidwa. Iwo akhoza kugwira osati TV, komanso wailesi chizindikiro.

Ramo Inter 2.0

Mlongoti uwu ndi mtundu wapakompyuta ndipo wapangidwa kuti uziyika m’chipinda. Chipangizo chophatikizikachi chimakhala ndi magwiridwe antchito ambiri. Kuphatikizidwa kwa amplifier kumakulolani kuti musinthe phindu. Chipangizocho chimapangidwa kuti chilandire ma digito, analogi ndi ma wailesi. Imayendetsedwa ndi magetsi. Chidacho chimaphatikizapo zingwe zapamwamba zolumikizira. Monga choyipa, kukhalapo kwamilandu yapulasitiki yosakwanira bwino kumazindikiridwa.

Momwe mungapangire mlongoti wa dacha pawailesi yakanema ya digito nokha

Pali mitundu ingapo ya tinyanga ta digito tomwe mungadzipangire nokha. Chitsanzo chosavuta mwina ndi chingwe cholumikizira. Kuti mupange, muyenera kusungira pa chingwe cha coaxial, zida zogwirira ntchito ndi pulagi yomwe imagwirizanitsa.
Kuti mupange, muyenera kuchita izi:

1. Dulani chingwe cha coaxial 1.5-2 m.
2. Kuchokera kumalekezero amodzi, ndikofunikira kuchotsa zotsekemera, ndiye muyenera kupotoza mawaya kukhala mtolo umodzi.
3. Pa mtunda wa 20 cm kuchokera m’mphepete, muyenera kuchotsa kutchinjiriza ndi kuluka kwa 5 cm.
4. Pambuyo 20 cm wina, muyenera kuchotsa chipolopolo chakunja kwa 5 cm.
5. Chingwecho chiyenera kulowetsedwa mu mphete, kulumikiza mapeto a chingwe ku gawo lomwe latsukidwa.
6. Pulagi iyenera kulumikizidwa ndi mphete ina ya chingwe.

Ndikofunika kusankha mphete yoyenera. Iyenera kukhala yofanana ndi kutalika kwa chizindikiro cholandiridwa. Zimatsimikiziridwa ndi ndondomeko yapadera yochokera kufupipafupi kumasulira. L = 300 / F Matchulidwe otsatirawa amagwiritsidwa ntchito pano:

1. L ndi mainchesi a mphete yopangidwa ndi chingwe.
2. F ndiye kuwulutsa kwa ma sigino.

Werengani m’mimba mwake musanayambe ntchito kenako pangani mphete yofanana ndendende ndi kutalika kwake. Mlongoti wodzipangira tokha pa TV ya digito mdziko muno: https://youtu.be/TzPEDjIGi00

Momwe mungasinthire kulandila

Nthawi zina kutsika kwa siginecha kumachitika mukamagwiritsa ntchito mitundu yakale yolumikizira chingwe. Ngati n’kotheka, tikulimbikitsidwa kugula yabwinoko. Nthawi zina, izi zitha kukonza vuto loperekera. Mukamagwiritsa ntchito amplifier yakunja, kutalika kwa waya wolumikizira kumagwira ntchito yofunika. Iyenera kuchepetsedwa momwe kungathekere.
Ngati nsanja yolumikizira ili kutali, kugwiritsa ntchito cholumikizira chizindikiro kungathandize. Izi ndizopindulitsa ngati pali chingwe chachitali cholumikizira chomwe chimachitika. Ngati amplifier imagwiritsidwa ntchito kwa nthawi yayitali, imatha kuchepetsa magwiridwe antchito. Izi, mwachitsanzo, zitha kukhala chifukwa cha kusakwanira kwa magetsi. Ngati mlongoti waikidwa motere, ndiye kuti udzasuntha mothandizidwa ndi mphepo kapena nyengo yoipa. Zikatero, m’pofunika kuonetsetsa kukhazikika kwake kodalirika.