Mazuvano, nzira dzinonyanya kushandiswa dzemodulation mukutepfenyura nhepfenyuro ndeye AM neFM. Munhoroondo, kutepfenyura kweAM kwakaonekwa makumi emakore zvisati zvaitika kutepfenyura kweFM, asi pakupedzisira, vanhu vanotora antenna yekutepfenyura yeFM munhepfenyuro yakawanda. Kunyangwe AM ichiri yakakosha, yanga isinga shandiswe. Nei tichida FM mukutepfenyura redhiyo? Ichi chinyorwa chichapindura mubvunzo uyu nekuenzanisa mutsauko uripo pakati pe AM neFM. Ngatitange!

Kugovera Kuchengeta!

gutsikana 

Mhando dzeRadio Broadcasting

Ngatitangei kudzidza nezve AM neFM. Mukutepfenyura kweredhiyo, kune nzira nhatu huru dzemodulation: amplitude modulation, frequency modulation, uye phase modulation. Phase modulation haisati yashandiswa zvakanyanya. Uye nhasi tinotarisisa kukurukura amplitude modulation uye frequency modulation.

Amplitude Modulation

AM zvinoreva amplitude modulation. Sezvinoratidzwa nezita racho, inomiririra ruzivo rwemasaini masaini kuburikidza neamplitude yemafungu eredhiyo. Mune amplitude modulation, iyo amplitude yemutakuri, ndiko kuti, simba rechiratidzo rinoshanduka mukuenzana neamplitude yechiratidzo chekuteerera. Mukutepfenyura kweredhiyo, AM inonyanya kutepfenyura neredhiyo refu uye yepakati wave, uye mabhendi anoenderana neredhiyo anonyanya kuderera uye epakati frequency mabhendi (iyo chaiyo frequency renji inosiyana zvishoma zvichienderana nemirairo yenyika dzakasiyana). Am inowanzo shandiswa mupfupi-wave nhepfenyuro, amateur nhepfenyuro, maviri-nzira nhepfenyuro, civil band nhepfenyuro, zvichingodaro.

Frequency Modulation

FM zvinoreva frequency modulation. Kusiyana neAM, inomiririra ruzivo rwemasaini masaini kuburikidza neiyo frequency yemafungu eredhiyo. Mune frequency modulation, kuwanda kweiyo inotakura chiratidzo (nhamba yenguva iyo ikozvino inoshandura kutungamira pasekondi) inoshanduka zvichienderana nekushandurwa kwechiratidzo chekuteerera. Munhepfenyuro yeredhiyo, inonyanya kutepfenyurwa muVHF frequency band, uye chaiyo frequency renji ndeye 88 - 108MHz (saizvozvowo, mirairo yedzimwe nyika kana matunhu akasiyana).

Kunyangwe AM neFM vachitamba basa rimwechete mukutepfenyura redhiyo, hunhu hwavo mukutepfenyura hwakasiyanawo nekuda kwemaitiro akasiyana ekugadzirisa, uye isu tichazvitsanangura zvakadzama muchikamu chinotevera.

Ndeupi Musiyano Pakati pe AM neFM?

Misiyano pakati pe AM neFM inonyanya kuratidzwa mumapoinzi aya:

Anti-chipingaidzo Mano

Chinangwa chekutanga chekugadzirwa kweFM tekinoroji ndechekukunda dambudziko rekuti chiratidzo che AM chiri nyore kukanganiswa. Asi FM inoshandisa shanduko yefrequency kumiririra ruzivo rweodhiyo, saka haizokanganiswe nekuchinja kweamplitude yechiratidzo chekuteerera. Kazhinji, masaini eFM haanyanyi kukanganiswa.

Transmission Quality 

Imwe neimwe chiteshi che AM inobata bandwidth ye10KHz, nepo imwe neimwe chiteshi cheFM inotora bandwidth ye200kHz. Izvi zvinoreva kuti masaini eFM anogona kutakura rumwe ruzivo rweodhiyo uye kufambisa odhiyo chiratidzo pasina kukanganisa. Naizvozvo, masaini eFM anowanzo shandiswa kutepfenyura zvirongwa zvemimhanzi, nepo masaini eFM achiwanzo shandiswa kutepfenyura zvirongwa zvekutaura.

Transmission Distance

Am masaini anotepfenyura masaisai eredhiyo neakadzika mafrequency kana kureba kwemasaisai, zvinoreva kuti anogona kuenda kure uye kupinda mune zvimwe zvinhu, semakomo. Nekudaro, iyo FM siginecha inovharika zviri nyore nezvipingamupinyi. Naizvozvo, rumwe ruzivo rwakakosha, sekufanotaura kwemamiriro ekunze, ruzivo rwetraffic, nezvimwe, runofambiswa kuburikidza nemasaini e AM. Panguva imwecheteyo, mune dzimwe nzvimbo dziri kure kana nzvimbo dzine makomo, vanoda AM yekutepfenyura redhiyo.

Mutengo Wokuvaka

Nekuti kutepfenyura kweFM kwakaomarara kupfuura kutepfenyura kweAM, makambani ekutepfenyura anofanirwa kutsiva aya eredhiyo eFM ane zvimwe zvakaoma zvemukati zvimiro uye mutengo wakakwira. Panguva imwecheteyo, kuti vavhare guta rese nepavanogona napo, vanofanirwawo kutenga akawanda ma transmitters kana mamwe masisitimu ekutepfenyura anoshandiswa kuwedzera nhambwe yekutepfenyura (yakadai seStudio Transmitter Link), iyo pasina mubvunzo inowedzera zvakanyanya mutengo wekuvaka midziyo yekutepfenyura. makambani.

Nekuda kwemhando yepamusoro yekutepfenyura yeFM, yave kushandiswa mumunda wekutepfenyura redhiyo zvakanyanya kubva payakabuda muna 1933. Unogona kuwana zvigadzirwa zvakawanda zvinoenderana, FM nhepfenyuro nhepfenyuro, maredhiyo eFM, maredhiyo eFM, nezvimwe, anoshandiswa zvakanyanya mumasevhisi epachivande uye eruzhinji seredhiyo yemotokari, dhiraivha-mumasevhisi, bato reKisimusi, nhepfenyuro dzenharaunda, nhepfenyuro dzeguta, nezvimwe. yezviteshi zvepasi-simba fm:

Yakanakisa 50W FM Radio Broadcast Transmitter FMT5.0-50H - Dzidza zvimwe

Mibvunzo Inonyanya Kubvunzwa

1. Mubvunzo: Kumhanyisa Yepasi-simba FM Station Zviri pamutemo here?

A: Izvo zvinoenderana nemirairo yako yemunharaunda paRadio Broadcasting. 

Munyika zhinji pasi rese, kumhanyisa chiteshi cheFM chakaderera kunodiwa kuti unyorere marezinesi kubva kune yemuno FM & TV nhepfenyuro manejimendi, kana kuti ucharipiswa. Naizvozvo, ndokumbirawo utarise mirairo yemuno paredhiyo yenharaunda zvakadzama usati watanga chiteshi cheFM chakaderera.

2. Q: Ndezvipi Zvishandiso Zvinodiwa Kuti Utange Yakaderera-simba FM Radio Station?

A: Kana iwe uchida kutanga yakaderera magetsi FM nhepfenyuro, iwe unozoda nhevedzano yemidziyo yekutepfenyura redhiyo, inosanganisira midziyo yeFM chiteshi uye studio chiteshi.

Heino rondedzero yemidziyo yakakosha yaunoda:

• An FM nhepfenyuro transmitter;
• FM antennas mapakeji;
• RF cables;
• Zvinodiwa accessories.

Kana iwe uchida kuwedzera mimwe michina kuFM radio station, heino rondedzero yako:

• Audio musanganiswa;
• Audio processor;
• Maikorofoni;
• Maikorofoni stand;
• BOP chivharo;
• High-quality monitor speaker;
• Mahedhifoni;
• Headphone distributor;
• etc.

3. Mubvunzo: Ndezvipi Zvakanakira zveLow-power FM Transmitters?

A: Kana ichienzaniswa neakakwira simba FM transmitters, yakaderera-simba FM transmitters akareruka, ari nyore pakufambisa, uye ane hushamwari kune manovices.

Nekuda kwekureruka kwayo uye vhoriyamu diki, zviri nyore kuti vanhu vabvise. Pamusoro pezvo, iko kushanda kuri nyore kunoita kuti vanhu vazive mashandisirwo ayo munguva pfupi. Inoderedza mari yevashandi mune zvese. 

4. Q: Ndezvipi Zvimwe Zvishandiso Inogona Kushandiswa Yakaderera-simba FM Transmitter mukati?

A: Inogona kushandiswa munhevedzano yenhepfenyuro yeruzhinji uye kusangana nezvinodiwa zvekutepfenyura kwakazvimirira.

Low-power FM transmitters anogona kushandiswa mumhando dzakasiyana siyana dzekushandisa mukuwedzera kune redhiyo yemotokari, drive-in masevhisi, Kisimusi bato, nhepfenyuro dzenharaunda, nhepfenyuro yemuguta, kusanganisira kutepfenyura kuchikoro, kutepfenyura kwezvitoro, kutepfenyura kwepurazi, chiziviso chefekitari, bhizinesi. kutepfenyura kwemusangano, kutepfenyura kwenzvimbo, kushambadza, zvirongwa zvemimhanzi, Zvirongwa zveNhau, kutepfenyura kwepanze, kugadzirwa kwemutambo, zvivakwa zvekururamisa, kutepfenyura kwezvivakwa, kutepfenyura kwevatengesi, nezvimwe.

Tanga Iyo FM Radio Station Iye zvino

Kunyangwe kune vanotanga, hazvina kunetsa kutanga yavo nhepfenyuro. Kungofanana nevamwe, ivo vanoda imwe yemhando yepamusoro uye inodhura redhiyo chiteshi uye mutengesi akavimbika. Ndosaka vachisarudza FMUSER. MuFMUSER, unogona kutenga FM nhepfenyuro mapakeji nemutengo webhajeti, kusanganisira FM radio michina iri kutengeswa, FM antennas ari kutengeswa, uye zvimwe zvinodiwa. Kana iwe uchida kuvaka yako nhepfenyuro, ndapota sununguka taura nesu izvozvi!

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