VHF eriya da hannuwanku: da kai-yi zane

VHF eriya - a na'urar da aka yi nufi ga samun radiation. Wadannan gyare-gyare iya kawai aiki tare da gajeren sakonni. Model da juna bambanta a mita. Eriya rediyon FM da hannayenku faruwa a kan umarnin. A wannan yanayin, yana da muhimmanci a yi la'akari da irin karɓa. Bugu da kari, ya kamata a lura da cewa akwai daban-daban na antennas, abin da ya bambanta a tsarin da sigogi.

The koyi ga sauki mai karɓar

Akwai wani eriya na FM mai karɓar tare da hannuwanku mafi sau da yawa a kan tsaye tsayawar. A daidai wannan lokaci shi ma'aunan mafi yi amfani da kananan tsawon. Don gyara sandunan amfani da waldi inverter. Da farko girbe mast, wanda zai ci gaba da goyon baya. Its diamita dole ne a kalla 1.2 cm. Domin karawa da liyafar alama ta amfani da reflectors. Mutane da yawa gyare-gyare tara saita a wani kadan kwana.

A tushe na eriya ya kamata a yi da wani mai rufi. A lokaci guda ma'aunan suna halatta rubũta a kan tef. Masana sun ce cewa karfe tube cewa shige da kyau. Domin model tare da wani mummunan shugabanci ne amfani reflector. Ce kashi ne saka a kan gefen mast.

A na'ura tare da wata tara

Eriya rediyon FM da hannayenku da aka yi tare da daban-daban mitoci. A model tsakanin wani daban-daban watsin darajar da riba. Lokacin tattaro naúrar yana da muhimmanci shirya wani m mast. Masana sun ba da shawara don amfani da m tara da kananan kaya masu nauyi. Diamita ta ya kamata a kalla 2.2 cm. Idan muka yi la'akari da abin koyi ga low-mita karba, da counterweights za a iya zaba daga bakin karfe. Ba lallai ba ne don shigar rufi.

Reflector antennas ake amfani a daban-daban mitoci. A cikin kasuwar na m gyare-gyare ga petals. Bã su da wani babban riba. Duk da haka, ya kamata a lura da cewa su ne wuya, don samar a kan nasu. A gaban Tashoshi iya ƙone a kan yin amfani da wani waldi inverter. A gefuna da eriya ya kamata a hankali sanded. Sigogi a yi amfani da diamita 0.3 cm. Domin magance rawa bugun jini tsangwama yana amfani da musamman reflectors da high watsin. Model da a kwance Tashoshi ake yi tare da daya kawai mast.

Model da biyu sigogi

Tare da biyu sigogi VHF eriya da hannuwanku zuwa da fadi da mast. Model na da irin wannan su dace da daban-daban jerin karba. Yawanci, a darajar da juriya alamu, za su iya aiki a mitoci sama da 300 MHz. Mutane da yawa da na'urorin amfani da mahara reflectors. A lokacin taron na model bukatar magance tsakiyar mast. Kamar yadda mai mulkin, kwararru amfani da kananan diamita bututu da wasa iyakar. Ya kamata kuma a lura da cewa akwai model tare da tukwici. Cikinsa counterweights za a iya saka a kusurwoyi mabambanta. A ingarma tsawon cikin wani sauki eriya ne daidai da 22 cm.

Don kara da riba, karfe shambura ake amfani. Akwai kuma kada gyara. Sun yi aiki a mita na 200 MHz. Shugabanci na mataki daga eriya iya bambanta. Ƙananan ɓangare na na'urar ne ya zama ruwan dare tara. A reflector ya kamata a da gyarawa. A counterweight iya saka a cikin wani kwance matsayi.

Ya kamata kuma a lura da cewa, domin shawo kan lokaci amo kamata amfani da elongated reflectors. Mast yin tsayayya high lodi. Antennas na irin wannan ne da kyau a korau polarizations. Duk da haka, a cikin wannan yanayin wajibi ne a yi la'akari da irin mai karɓar da mita iyaka.

kwance antennas

Takamaiman antennas za a iya harhada tare da counterweights na daban-daban siffofi. Simple gyare-gyare suna sanya a kan layin da masts. Akwai kuma wani yawa high-mita na'urorin, wanda aka kera da mikakke reflector, wanda aka saka a cikin kasa daga cikin tara. Takamaiman antennas da wani babban impedance rabo. Suna kuma iya aiki a mita na 200 MHz.

Mutane da yawa model suna sanye take da biyu counterweights. A wannan yanayin da mast da ake amfani da 1.2 cm a diamita. Wasu su dace da yin amfani da gida karba. Bã su da wani babban coefficient na tsaye kalaman. Sigogi sau da yawa kafa a wata dama kwana. Counterweights ne kawai a gaban na'urar.

tsaye canji

Tsaye antennas ne iya aiki a daban-daban mitoci. Gyare-gyare na da irin wannan suna da wani babban karawa factor. Yana da wani a tsaye VHF eriya ne quite sauki ga rediyo da hannunsa. Da farko muna bukatar zabi mai kyau mashaya, don ya shirya a gaba waldi inverter. Don warware matsaloli da mummunan rabuwa bada shawarar yin amfani da bugun jini reflectors. A lokaci guda ma'aunan bukatar ka shigar da wani babban tsawon da diamita Kada su kasance kasa da 0.3 cm. Don bunkasa mayar da hankali na tacewa masu. A gaban tebur iya kawai za a shigar a wani kwana na 45 digiri. Duk da haka, wajibi ne a pre-lissafi da mast ƙarfi.

Don ƙara da zaman lafiyar na tushe tsarin za a iya sanya tare da abutments. Shi ne da FM eriya na rediyo da hannuwansu kawai tare da gajeren studs cewa dole ne a shigar a wata low tsawo. Counterweights yarda to yaudara a mashaya. Ya kamata kula da linings. Musamman da hankali ne da aka ba wa gefen safiyo, wanda ake gyarawa zuwa mast. Don kara fannin watsawa shawarar tara na 25 cm tsawon.

The inji 144 MHz

VHF eriya a 144 MHz da hannuwansu ne a mike ko mai lankwasa mashaya. Mast a cikin wannan yanayin ne amfani da QFontDatabase abutments. A wasu lokuta, amfani da pulsed reflectors. Shi ne da UHF eriya 144 da hannunsa zuwa ga gefen uprights. A mafi kyau duka tsawon na goyon bayan ne daidai da 15 cm. A gaban kambun ana amfani da su kara da riba. Matsayin mai mulkin, suna saka da madauri. VHF eriya a 144 MHz da hannuwanku da aka yi tare da daya ko biyu Tashoshi.

Gyara a 145 MHz

VHF eriya 145 MHz da hannuwansu sanya gajeren mast. Mafi na kowa gyare-gyare suna dauke su uku da ginshiƙai. da riba daga cikin model ne quite high. Gudu daga antennas amfani da bugun jini reflectors. A gaban hali za a iya kafa ne kawai ta wajen wani waldi inverter. A model high directivity. Masana sun ce wannan eriya da aka yarda su yi lankwasa mast.

Model da tagulla mast

Akwai eriya ga UHF band da hannuwansu da reflectors na daban-daban mitoci. Pillars iya shigar da ko ba tare da madauri. Wasu gyare-gyare suna sanya a cikin gefen sigogi. Antennas kerarre da high watsi coefficient. Da farko saka mast. Counterweights za a iya saka a wani kadan kwana.

A ganiya diamita struts ne 1.2 cm. A wannan yanayin da mast bu mai kyau don amfani mai karfi tushe. Idan muka magana game da reflector, shi wajibi ne don amfani da bugun jini ko da waya nau'in. Don yin sauki model amfani hudu counterweights. Gammaye soldered amfani da wani waldi inverter. Bugu da ari, don yin da na'urar da hannãyenku, saka bangare karkashin mast. Riba masha'a yanki za a iya cimma ta wajen kaikaice struts.

Na'urori tare da karfe mast

A kan wani karfe mast VHF eriya da aka sanya da hannuwansu da QFontDatabase retinaculum. Counterweights shigar, yawanci a gefe daya. Wasu masana bayar da shawarar yin amfani da stubs tare da diamita na 2.2 cm. Don bunkasa mayar da hankali na na'ura aka yi amfani da bugun jini reflector, wanda aka saka a gindi daga eriya. Don haɗa da model amfani da waya daga mast. Shi ne kuma ya kamata a lura da cewa akwai na'urorin da gefen lobes. Bã su da wani babban watsin.

Na'urorin don low ƙwarai karba

Mai karɓar ji na ƙwarai ga low VHF eriya da hannuwanku faruwa quite sauki. A mataki na farko da aka girbe mast, wanda aka haɗe zuwa gefen tsayawar. Counterweights sukan yi amfani da QFontDatabase shiryar. Match da aka kafa tare da karfi da tushe. A model na irin wannan ya kamata a yi amfani da mai waya reflector. Counterweights iya shigar a cikin wani kwance matsayi. Domin karawa na riba da aka yarda zuwa Dutsen da strut dogon diamita 2.2 cm.

Model high ƙwarai karba

Domin data karba VHF eriya na 430 MHz hannuwa shi ne yake aikata tare da karfe mast. Wasu masana bayar da shawarar karfi da amfani da kawai wani mai lankwasa tara. A wannan yanayin, da counterweights dole ne a gyarawa a tushe firam. Al'ada VHF eriya da hannuwanku da aka yi tare da daban-daban na reflectors.

Fara gyaggyarawa taron kuxi zuwa amince da mast da sallamar wayoyi to connect. Bugu da ari, don yin da na'urar da hannuwanku bukatar yanke hudu sanduna da diamita na 2.2 cm. A model a cikin 200 MHz ya zama uku gefen sigogi. Counterweights iya shigar a wani kwana na 45 digiri. Pillars aka saka a cikin kasa na mast.