DIY neFM Radio Dipole Antenna | FMUSER BROADCAST

 Iyo FM dipole antenna ndiyo yakapusa uye yakawandisa mhando yeantenna, saka zviri nyore kuti chero munhu agadzire yavo, inongoda zvimwe zvinhu zviri nyore. uye DIY FM dipole antenna isarudzo inoshanda uye yakaderera kana redhiyo yako ichida antenna yenguva pfupi. Saka sei kuita DIY iyo FM dipole antenna? Nyaya yacho ichakuudza.

Chii chinonzi FM Dipole Antenna?

Izvo zvakakosha kuve nekunzwisisa kupfupi kweFM dipole antenna usati wagadzirisa nezve kugadzira yako. Mumunda weredhiyo uye nharembozha, iyo FM dipole antenna ndiyo inonyanya kushandiswa uye yakapusa mhando yeantenna. Iine maitiro akajeka: inoratidzika sezwi rokuti "T", iro rinoumbwa nemakondukita maviri ane urefu hwakaenzana uye kupera-kumagumo. Tsoka dzavo dzakabatanidzwa netambo. Iyo tambo inogona kuve yakavhurika tambo, kaviri tambo, kana coaxial tambo. tinya pano

Izvo zvinofanirwa kucherechedzwa kuti balun inofanirwa kushandiswa kana uchishandisa coaxial tambo nekuti coaxial tambo imhando yetambo isina kurongeka asi iyo FM dipole antenna imhando yeantenna yakaenzana. Uye balun inogona kuita kuti ienderane nemumwe.

Iwe unofanirwa kugadzirira zvimwe zvekugadzira iyo FM dipole antenna futi. Kazhinji ivo:

• Twin flex - Twin mains flex yakanakira, asi unogona kuitsiva nedzimwe waya, senge waya dzemutauri wekare, chero kuramba kwavo kuri pedyo ne75 ohms.
• Sunga kuputira - Inoshandiswa kuchengetedza pakati peiyo FM dipole antenna uye kudzivirira iyo flex kuvhura kunze kupfuura izvo zvinodiwa.
• Tambo kana twine - Inoshandiswa kuchengetedza migumo yeFM dipole antenna kune imwe nzvimbo (kana zvichidikanwa).
• Zvibatanidza - Inoshandiswa kubatanidza iyo FM antenna kune coaxial tambo.

Zvinhu izvi zvinogona kuwanikwa muhupenyu hwako hwezuva nezuva. Unogona kushandisa izvo zvinowanikwa mumurwi wemarara kugadzira iyo VHF FM radio dipole antenna.

Ipapo zvinodiwa kuverenga kureba kweVHF FM yako dipole antenna. Iwe unogona kuverenga zvinoenderana neiyi fomula:

L = 468 / F : L inoreva kureba kweantenna, saka kureba kwemuitisi kunoda kugoverwa ne 2. F ndiyo nguva yekushanda muMHz. Kana izvi zviri pamusoro zvagadzirira, unogona kutanga kugadzira antennas.

Zviri nyore kugadzira yakajairwa VHF FM dipole antenna, inongoda matanho mana akareruka. Tevera nhungamiro iri pasi apa!

• Kupatsanura tambo - Kupatsanura maviri insulated waya wetambo.
• Gadzirisa nzvimbo yepakati - Rangarira kureba kwako kondukita? Ngatitorei kuti 75 centimita. Kana conductor akareba 75 cm zvakakwana, anomira kupatsanura waya. Zvadaro sunga pakati ne tie wrap panguva ino. Uye iyi ndiyo nzvimbo yepakati yeFM dipole antenna.
• Gadzirisa kureba kwemutyairi - Ipapo iwe unogona kugadzirisa kureba kwemutyairi zvishoma. Nekuti pane zvakawanda zvinokanganisa zvinogara zviri muconductor kureba formula, hazvigoneke kuve wakarurama chero nguva. Kana iwe uchida yakakwirira yekushanda frequency, unogona kupfupisa conductor kureba zvishoma.
• Gadzirisa antenna - Pakupedzisira, sunga banga kumucheto kwewaya kuitira kuti ugone kugadzirisa antenna nedzimwe waya dzakamonyoroka. Paunenge uchiisa iyo FM dipole antenna, teerera kuti ugare kure nezvinhu zvesimbi, kana iyo chiratidzo chekutambira inoderedzwa. 

Iyo VHF FM inogamuchira inogona kushandiswa kune 75-ohm interface uye 300-ohm interface. Iyo iri pamusoro FM dipole antenna inokodzera iyo 75-ohm interface. Kana iwe uchida kushandisa 300-ohm interface, unogona kuedza nzira mbiri:

1. Batanidza yako DIY 75-ohm dipole antenna ine coaxial tambo ine balun
2. Tenga mazana matatu ohm FM tambo pamhepo uye gadzira mazana matatu-ohm dipole antenna nenzira imwechete sekugadzira 300-ohm dipole antenna.

Izvo zvinocherechedzwa kuti zvinongokurudzirwa kushandisa iyo DIY FM dipole antenna yeredhiyo yako kana yekuteerera inogamuchira. Kana iwe uchida antenna yeFM radio transmitter, ndapota tenga nyanzvi yeFM dipole antenna kubva kune inyanzvi redhiyo inopa, seFMUSER.

Chii chinonzi Balun kune Dipole?

Nheyo yeBaron yakafanana neyeshanduko. Balun chinhu chemagetsi chinoshandura pakati pechiratidzo chekuenzanisa uye chiratidzo chisina kuenzana, kana mutsara wekudya. 

Ndirini Pandinofanira Kushandisa An Antenna Balun?

Mabharanzi anoshandiswa munzvimbo dzakawanda kuchinjika pakati pezvakaenzanirana & Zvisina kuenzana zvimiro: imwe kiyi nzvimbo ndeye redhiyo frequency, RF zvikumbiro zvema antenna. RF zvikero zvinoshandiswa nemaantenna mazhinji uye mafeeder avo kushandura chikafu chakaringana kana mutsara kune isina kurongeka, Sezvo dipole antenna iri yakaenzana antenna uye coaxial tambo itambo isina kurongeka, coaxial tambo inoda kushandisa balun kushandura coaxial. tambo mutambo yakaenzana.

Ndedzipi Mhando Dzakasiyana dzeFM Dipole Antennas?

Kune mana makuru emhando dzeFM dipole antennas:

• Half-wave dipole antenna
• Multi hafu-wave dipole antenna
• Yakapetwa dipole antenna
• pfupi dipole 

Chirudzii cheFeeder The Best FM Dipole Antenna ? Ndeipi Nzira Yekudyisa Yakanakisisa?

Iyo dipole antenna ndeye yakaenzana antenna, saka iwe unofanirwa kushandisa yakaringana feeder, chiri chokwadi mudzidziso. Nekudaro, yekudyisa yakaringana haiwanzo kushandiswa nekuti inonetsa kushanda muzvivakwa uye inongoshanda kubhendi reHF. Mamwe coaxial cables ane balun anoshandiswa.

Iyo FM dipole antenna inoshandiswa zvakanyanya munzvimbo dzakasiyana siyana dzekutepfenyura, seyemunhu FM radio nekuda kwekureruka kwayo, kushanda nesimba, uye mutengo wakaderera. Asi kana iwe uchida kuvaka chiteshi cheredhiyo, kutsvaga akavimbika wedhiyo mudziyo wekutengesa ichiri sarudzo yako yakanaka. FMSUER inyanzvi uye yakavimbika mutengesi wemidziyo yekutepfenyura nhepfenyuro nemhinduro, zvinosanganisira zvinoshanda uye zvinodhura FM radio transmitters inotengeswa, inofananidzwa neFM dipole antenna inotengeswa, zvichingodaro. Kana iwe uchitsvaga izvi, ndapota inzwa wakasununguka kutibata nesu!