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UHF Combiners

Chophatikizira cha UHF ndi mtundu wa cholumikizira ma siginecha chomwe chimagwiritsidwa ntchito kuphatikiza ma siginecha angapo mu ultra-high frequency (UHF) kukhala chizindikiro chimodzi kapena ziwiri. Amadziwikanso ngati wailesi pafupipafupi kuphatikiza maukonde kapena diplexer. Ntchito zodziwika bwino za chophatikizira cha UHF transmitter zimaphatikizapo kuphatikiza ma siginecha angapo a kanema wawayilesi kukhala chingwe chimodzi kapena kuphatikiza ma wayilesi angapo kukhala mlongoti umodzi. Kuphatikiza apo, zophatikizira za UHF zitha kugwiritsidwa ntchito kuphatikiza ma transmitter angapo kukhala mlongoti umodzi woulutsira, kuphatikiza zolandila zingapo kukhala mlongoti umodzi wolandila ma siginecha, ndikuphatikiza ma network angapo opanda zingwe kukhala mlongoti umodzi.

Kodi mumagwiritsa ntchito bwanji cholumikizira cha UHF pakuwulutsa?
Njira zokhazikitsira molondola cholumikizira cha UHF pawailesi yowulutsira:
1. Ikani cholumikizira pamalo owuma, opanda fumbi.
2. Lumikizani zolowetsa zonse za mlongoti wa UHF ku chophatikiza mu dongosolo lolondola.
3. Lumikizani kutulutsa kwa chophatikiza ndi chotumizira.
4. Onetsetsani kuti mwatsitsa bwino cholumikizira.
5. Onetsetsani kuti zigawo zonse zalumikizidwa bwino ndikugwira ntchito.

Mavuto omwe muyenera kupewa mukamagwiritsa ntchito chophatikizira cha UHF pawayilesi:
1. Kulumikiza mtundu wolakwika wa mlongoti ku chophatikiza.
2. Osalumikiza cholumikizira ku nthaka yoyenera.
3. Kusakonza bwino cholumikizira.
4. Osayika bwino milingo yamphamvu ya ma transmitters olumikizidwa.
5. Osayika ma frequency olondola kwa chophatikiza.
Kodi chophatikiza cha UHF chimagwira ntchito bwanji?
Chophatikizira cha UHF ndi chipangizo chomwe chimagwiritsidwa ntchito pamawayilesi owulutsa kuti aphatikize ma siginecha angapo a UHF kukhala chinthu chimodzi. Zimagwira ntchito pophatikiza ma siginecha kuchokera ku ma transmitters angapo ndikukulitsa kukhala kutulutsa kumodzi. Izi zimathandiza otsatsa kuti awonetsetse kuti chizindikiro chochokera ku ma transmitter angapo chikuphatikizidwa kukhala chizindikiro chimodzi champhamvu chomwe angalandire ndi wolandila.
Chifukwa chiyani chophatikiza cha UHF chili chofunikira pa wayilesi?
Chophatikizira cha UHF ndi chofunikira pamawayilesi owulutsa chifukwa chimaphatikiza ma siginecha angapo a UHF kukhala chinthu chimodzi, kulola owulutsa kuti apange kufalitsa bwino kwa siginecha yawo. Izi zimathandiza otsatsa kuti afikire omvera ambiri, kuchepetsa kuchuluka kwa mphamvu zomwe zimafunikira komanso zida zofunikira kuti zitumize chizindikiro chawo. Ndikofunikira ku wayilesi ngati akufuna kufikira omvera ambiri.
Kodi pali mitundu ingati ya ophatikiza a VHF ndipo pali kusiyana kotani pakati pawo?
Pali mitundu iwiri ikuluikulu ya zophatikizira za UHF: zongokhala komanso zogwira ntchito. Zophatikizira za Passive UHF ndi zida zosavuta, zotsika mtengo zomwe zimaphatikiza ma siginecha angapo kukhala siginecha imodzi ndikutayika pang'ono. Zophatikizira za UHF zogwira ntchito ndi zida zovuta kwambiri zomwe zimaphatikizira zokulitsa ndi zosefera kuti zipititse patsogolo kupindula kwa ma sign ndi kuchepetsa phokoso. Kusiyana kwakukulu pakati pa ziwirizi ndikuti zophatikizira za UHF zogwira ntchito ndizokwera mtengo kwambiri ndipo zimapereka mawonekedwe abwinoko, pomwe zophatikizira za UHF ndizosavuta, zotsika mtengo, komanso zimapereka mawonekedwe osamveka bwino.
Kodi mumasankha bwanji chophatikiza chabwino kwambiri cha VHF?
Posankha chophatikizira chabwino kwambiri cha UHF pawailesi yowulutsira, ndikofunikira kuganizira kuchuluka kwa zolowa ndi zotuluka, kupindula, kuchuluka kwa phokoso, kudzipatula, kutayika kobwerera, komanso kagwiridwe ka mphamvu. Kuphatikiza apo, muyenera kuwonetsetsa kuti mukuwunikanso mtundu wa zomangamanga, chitsimikizo, ndi chithandizo chamakasitomala akampani. Pomaliza, muyenera kufananiza mitengo ndi mawonekedwe pamitundu ingapo kuti muwonetsetse kuti mumapeza mtengo wabwino kwambiri wandalama zanu.
Kodi mumalumikiza bwanji cholumikizira cha UHF munjira yowulutsira?
1. Lumikizani kutulutsa kwa exciter ku cholumikizira cha UHF.
2. Lumikizani zotulutsa za UHF ku cholumikizira cha amplifier.
3. Lumikizani kutulutsa kwa amplifier ndi kulowa kwa mlongoti.
4. Onetsetsani kuti zingwe zonse ndi zotetezedwa komanso zokhazikika bwino.
5. Sinthani phindu la amplifier ngati pakufunika.
6. Yesani chojambulira cha UHF ndi jenereta ya chizindikiro kuti muwonetsetse kugwira ntchito moyenera.
Ndi zida ziti zomwe zimagwirizana ndi chophatikiza cha UHF?
Zipangizo zokhudzana ndi chophatikiza cha UHF pawailesi yowulutsira zikuphatikiza minyanga ya antenna, ma antenna couplers, RF amplifiers, RF filters, RF switches, RF attenuators, ndi magetsi.
Kodi zofunika kwambiri zakuthupi ndi RF za chophatikiza UHF ndi ziti?
Zofunikira kwambiri zakuthupi ndi za RF zophatikizira UHF zikuphatikiza:

Zofotokozera Zathupi:

• Kukula: Kukula kwa chophatikizira ndikofunika poganizira ngati kudzakwanira mu malo omwe alipo.

• Kulemera kwake: Kulemera kwa chophatikizira kuyenera kuganiziridwa poganizira ngati kungatengedwe mosavuta ndikuyika.

• Bwalo: Chotsekerapo chophatikiziracho chiyenera kukhala cholimba kuti chiteteze zinthu zamkati ku chilengedwe.

Zofotokozera za RF:

• Mafupipafupi osiyanasiyana: Mafupipafupi a chophatikiza ayenera kuphimba ma frequency omwe mukufuna a UHF, makamaka pakati pa 470-698 MHz.

• Kudzipatula: Kudzipatula kwa chophatikizira kuyenera kukhala kokwanira kuti zitsimikizire kuti zizindikiro zochokera ku doko lililonse sizikusokonezana.

• Kutaya Kutayika: Kutayika kwa kuyika kwa chophatikizira kuyenera kukhala kochepa kwambiri kotero kuti mphamvu ya chizindikiro isachepetse kwambiri pamene ikudutsa chophatikizira.

• Kubwereranso Kutayika: Kutayika kobwerera kwa chophatikizira kuyenera kukhala kokwanira kuti zitsimikizire kuti chizindikirocho chikuwonekera mmbuyo ndi kusokoneza kochepa.
Kodi mumasunga bwanji cholumikizira cha UHF ngati injiniya?
1. Yang'anani chophatikizira ngati pali zizindikiro zilizonse za kuwonongeka kapena kuwonongeka.

2. Tsukani zigawo zamkati za chophatikiza ndi nsalu youma ndi / kapena mpweya woponderezedwa kuti muchotse fumbi ndi zinyalala.

3. Yang'anani momwe ma RF amalowetsa ndi kutulutsa pogwiritsa ntchito RF watt mita.

4. Yang'anani zingwe zonse ndi zolumikizira zilizonse zotayirira kapena zolakwika.

5. Yang'anani kuchuluka kwa magetsi ndi ma voliyumu kuti muwonetsetse kuti ali mkati mwazomwe zimagwira ntchito.

6. Yang'anani makonda ndi kusintha kwa zosefera zophatikizira ndi passband kuti zitsimikizire kuti ndizolondola.

7. Konzani zofunikira zilizonse kapena kusintha.

8. Lembani ntchito zonse zokonza.
Kodi mumakonza bwanji chophatikiza cha UHF ngati sichikugwira ntchito?
Kuti mukonze chophatikizira cha UHF, muyenera kuzindikira kaye vuto. Ngati chophatikizira sichikugwira ntchito, muyenera kuyang'ana zigawo zake zonse ngati zikuwonetsa kuwonongeka kapena kuwonongeka. Vuto likadziwika, mutha kusintha magawo aliwonse osweka kapena osagwira ntchito. Kutengera mtundu wa chophatikizira cha UHF, mungafunike kugwiritsa ntchito zida zapadera ndi magawo kuti mukonze. Zigawo zikasinthidwa, muyenera kuyesa kwathunthu cholumikizira ndikuwonetsetsa kuti chikugwira ntchito moyenera.
Kodi mumasankha bwanji phukusi loyenera la chophatikiza cha UHF?
Posankha choyikapo choyenera chophatikizira UHF, ndikofunikira kuwonetsetsa kuti zotengerazo zidapangidwa kuti ziziteteza ku fumbi, chinyezi, ndi zinthu zina zachilengedwe. Kuphatikiza apo, zotengerazo ziyenera kukhala zolimba mokwanira kuti ziteteze chophatikizira ku kuwonongeka kwakuthupi panthawi yotumiza ndi kunyamula. Ponyamula chophatikizira, chisamaliro chowonjezereka chiyenera kuchitidwa kuti chitetezedwe bwino, monga kuyenda kapena kugwedezeka panthawi yoyendetsa kungawononge chogwirizanitsa.
Ndizinthu ziti zomwe zimagwiritsidwa ntchito popanga cholumikizira cha UHF?
Choyikapo chophatikizira cha UHF nthawi zambiri chimakhala chopangidwa ndi chitsulo, monga aluminiyamu kapena chitsulo, ndipo zinthuzi sizikhudza magwiridwe antchito a chipangizocho.
Kodi chophatikizira cha UHF ndi chiyani?
Mapangidwe oyambira ophatikizira a UHF amakhala ndi netiweki yolowera, netiweki yosakanikirana, netiweki yotulutsa ndi fyuluta. Maukonde olowetsamo ali ndi udindo wowongolera zidziwitso zolowera kwa ophatikiza, pomwe maukonde osakanikirana ndi omwe ali ndi udindo wophatikiza zizindikiro. Maukonde otulutsa ali ndi udindo wotenga chizindikiro chophatikizana ndikuchilozera ku zomwe mukufuna. Pomaliza, fyulutayo ili ndi udindo woletsa ma siginecha osayenera ndi ma harmonics. Chilichonse mwazinthuzi chimakhala ndi gawo lofunikira pakuzindikiritsa magwiridwe antchito ndi mawonekedwe a ophatikiza. Popanda chilichonse mwazinthu izi, cholumikizira sichingagwire ntchito moyenera.
Ndani ayenera kupatsidwa ntchito yolumikizira UHF?
Munthu amene wapatsidwa ntchito yoyang'anira chophatikizira cha UHF muwayilesi yowulutsira ayenera kukhala ndi ukadaulo, luso lotha kuthana ndi mavuto, komanso kuthekera kogwira ntchito pawokha.
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