VHF mpi gị aka: onwe onye na-mere imewe

VHF mpi - a ngwaọrụ nke a na-zubere maka anata radieshon. Ndị a mgbanwe nwere ike na-arụ ọrụ na obere n'ókè. Ụdị na ibe dị iche na ugboro. Poolu maka FM redio na gị onwe gị aka na-aga ntụziaka. Na nke a, ọ dị mkpa ka a tụlee ụdị erite. Ke adianade do, ọ ga-ahụ kwuru na e nwere ndị dị iche iche nke antennas, nke dị iche na Ọdịdị na parameters.

The nlereanya ka mfe erite

E nwere onye na poolu maka FM erite gị aka ọzọ mgbe na vetikal guzoro. N'otu oge ahụ ọ na-anaghị ekwe ka mma iji obere ogologo. Idozi okporo osisi eji ịgbado ọkụ inverter. N'ụzọ bụ isi na-egbute osisi ọkọlọtọ, nke ga na-akwado. Ya dayameta ga-dịkarịa ala 1.2 cm. N'ihi amplification nke n'ikuku mgbaàmà iji reflectors. Ọtụtụ mgbanwe ogbe atọrọ na a nta n'akuku.

The isi nke mpi a ga-eme na ihe machie. N'otu oge ọtùtù na-kwere ka ịdekọ na teepu. Ọkachamara na-ekwu na nchara tube na dabara nke ọma. N'ihi na ụdị na a na-adịghị mma tinye ntụziaka ahụ n'ọrụ ngosiputa. Sị na mmewere na n'ịnyịnya na nsọtụ nke poolu.

A ngwaọrụ a ogbe

Poolu maka FM redio na gị onwe gị aka na-eme na iche iche frequencies. The ụdị n'etiti a dị iche iche conductivity uru ma uru. Mgbe gbakọta unit ọ dị mkpa iji kwadebe a siri ike poolu. Ọkachamara nye ndụmọdụ iji oghere ogbe na obere igwe. Dayameta ọ kwesịrị dịkarịa ala 2.2 cm. Ọ bụrụ na anyị na-atụle ihe nlereanya ka ala-ugboro receivers, na counterweights nwere ike họrọ si a anaghị agba nchara. Ọ dịghị mkpa ka ịwụnye lining.

Ngosiputa antennas na-eji dị iche iche frequencies. Na ahịa nke Ugboro mgbanwe na petals. Ha nwere nnukwu uru. Otú ọ dị, ọ ga-kwuru na ha bụ ndị siri ike na-emepụta na ha onwe ha. The n'ihu akwụsị nwere ike ire na iji a ịgbado ọkụ inverter. The n'ọnụ nke mpi a ga-ọma sanded. Racks ga-eji na dayameta nke 0.3 cm. N'ihi na Iguzogide resonance usu nnyonye anya na-eji pụrụ iche reflectors na elu conductivity. Ụdị na kwụ akwụsị na-mere na naanị otu onye na poolu.

Model abụọ racks

Na abụọ racks VHF mpi gị aka-aga na mbara poolu. Ụdị nke ụdị na-adabara dị iche iche usoro receivers. A, a elu uru nke iguzogide ihe nakawa etu esi, ha na-enwe ike rụọ ọrụ na frequencies n'elu 300 MHz. Ọtụtụ ngwaọrụ iji multiple reflectors. N'oge nzukọ nke nlereanya mkpa iji lebara Central poolu. Dị ka a na-achị, ndị ọkachamara na-eji a obere dayameta tube na mụwo nsọtụ. Ọ kwesịkwara kwuru na e nwere ụdị na Atụmatụ. Ebe counterweights nwere ike n'ịnyịnya na iche iche akụkụ. The stud ogologo na a mfe poolu hà 22 cm.

Dịkwuo uru, ígwè akpa na-eji. E nwekwara a flaapu mgbanwe. Ha na-arụ ọrụ na a ugboro ole nke 200 MHz. Direction nke edinam si poolu nwere ike ịdị iche iche. The ala akụkụ nke ngwaọrụ bụ dịpụrụ adịpụ ogbe. The ngosiputa ga-ọma ofu. The counterweight nwere ike n'ịnyịnya na a kehoraizin ọnọdụ.

Ọ kwesịkwara kwuru na iji merie ihe na-adọ mkpọtụ kwesịrị iji elongated reflectors. Poolu idi elu ibu. Antennas nke ụdị dị nnọọ mma na-adịghị mma polarizations. Otú ọ dị, na nke a ọ dị mkpa iji gaa na akaụntụ ụdị erite na ugboro ịgba.

kwụ antennas

Kwụ antennas nwere ike kpọkọtara na counterweights nke dị iche iche shapes. Simple mgbanwe na-mere na edoghi masts. E nwekwara a otutu elu ugboro ngwaọrụ, nke na-arụpụtara na linear ngosiputa, nke na-n'ịnyịnya na ala nke ogbe. Kwụ antennas nwere a elu impedance ruru. Ha na-enwe ike rụọ ọrụ na a ugboro ole nke 200 MHz.

Ọtụtụ ụdị na-onwem na abụọ counterweights. Na nke a na poolu na-eji 1.2 cm n'obosara. Ụfọdụ bụ ndị kwesịrị ekwesị maka na home receivers. Ha nwere nnukwu ọnụọgụ nke guzo ife. Racks mgbe atọrọ na a nri n'akuku. Counterweights bụ nanị n'ihu nke ngwaọrụ.

vetikal mgbanwe

Vetikal antennas nwere ike na-arụ ọrụ dị iche iche frequencies. Mgbanwe nke ụdị nwere a elu amplification akpata. Ọ bụ a vetikal VHF poolu bụ nnọọ mfe maka radio ji aka ya. First mkpa ka anyị na-ahọrọ a ezigbo ụlọ mmanya, iji dozie tupu ịgbado ọkụ inverter. Iji dozie nsogbu na-adịghị mma polarization na-atụ aro iji usu reflectors. N'otu oge ọtùtù mkpa iji wụnye a nnukwu ogologo na dayameta ha ekwesịghị ịbụ ihe na-erughị 0.3 cm. Iji aka na-elekwasị anya nke nzacha na-etinyere. Oche ihu ike na a ga-arụnyere na na n'akuku nke 45 degrees. Otú ọ dị, ọ dị mkpa-eji gbakọọ poolu ike.

Dịkwuo kwụsie ike nke isi Ọdịdị pụrụ mere na abutments. Ọ bụ FM poolu maka radio na aka-ha na na obere studs na a ga-arụnyere na a ala elu. Counterweights kwere ka na-aghọ aghụghọ na mmanya. Ọ ga na-elekọta linings. Special ntị e nyere n'akụkụ nnyocha, nke na-ofu aka poolu. Dịkwuo ebe nke dispersion atụ aro ogbe nke 25 cm ogologo.

The ngwa 144 MHz

VHF poolu na 144 MHz na aka ha bụ a ogologo ma ọ bụ curved mmanya. Poolu na nke a na-etinyere na oblique abutments. Mgbe ụfọdụ, eji pulsed reflectors. Ọ bụ UHF poolu 144 na aka ya n'akụkụ uprights. Nke ezigbo ogologo nke na-akwado bụ hà 15 cm. The n'ihu ịgụ na-eji dịkwuo uru. Dị ka a na-achị, ha na-n'ịnyịnya na straps. VHF poolu na 144 MHz gị aka na-eme na otu ma ọ bụ abụọ akwụsị.

Mgbanwe na 145 MHz

VHF poolu 145 MHz na aka-ha mere obere poolu. The kasị mgbanwe na-atụle ga-atọ ogidi. na uru nke ụdị bụ nnọọ elu. Ọgba ọsọ si antennas eji na usu reflectors. The n'ihu na-amị nwere ike ịtọ naanị site n'ọnụ a ịgbado ọkụ inverter. Na ụdị nke elu directivity. Ọkachamara na-ekwu na poolu na-ekwe ka eme ka a curved poolu.

Model na ọla kọpa poolu

E nwere onye na poolu maka UHF gbalaga na aka ha na reflectors nke dị iche iche frequencies. Ogidi nwere ike arụnyere na ma ọ bụ na-enweghị straps. Ụfọdụ mgbanwe na-mere ke n'akụkụ racks. Antennas arụpụtara na elu chụsasịrị ọnụọgụ. First n'ịnyịnya poolu. Counterweights nwere ike n'ịnyịnya na a nta n'akuku.

The kacha dayameta struts bụ 1.2 cm. Na nke a na poolu bụ amamihe na-eji a siri ike isi. Ọ bụrụ na anyị na-ekwu banyere ngosiputa, ọ dị mkpa iji na usu ma ọ bụ ndị waya ụdị. Iji mee ka a dị mfe nlereanya eji anọ counterweights. Pad soldered eji a ịgbado ọkụ inverter. Ọzọkwa, na-eme na ngwaọrụ gị aka, n'ịnyịnya nkebi n'okpuru osisi ọkọlọtọ. Uru dissipation ebe nwere ike na-enweta site n'aka mpụta struts.

Ngwaọrụ na ígwè poolu

On a ígwè poolu VHF poolu ka na aka ha na oblique retinakulum. Counterweights arụnyere, na-emekarị na otu akụkụ. Ụfọdụ ndị ọkachamara nwere ike ikwu na ojiji nke stubs na a dayameta nke 2.2 cm. Iji aka na-elekwasị anya nke ngwaọrụ na-etinyere usu ngosiputa, nke na-n'ịnyịnya ke ukot nke mpi. Iji jikọọ ụdị mee waya si poolu. Ọ bụkwa uru arịba ama na e nwere ngwaọrụ na akuku lobes. Ha nwere nnukwu conductivity.

Ngwaọrụ maka ala uche receivers

Erite uche maka ala VHF mpi gị aka na-aga nnọọ mfe. Nzọụkwụ mbụ a na-egbute osisi ọkọlọtọ, nke bụ mmasị na akuku guzoro. Counterweights na-eji na-oblique nduzi. Match guzosie ike na ike isi. Na ụdị nke ụdị ga-eji Wired ngosiputa. Counterweights nwere ike arụnyere na a kehoraizin ọnọdụ. N'ihi amplification nke uru na-ekwe ka efego na strut ogologo dayameta nke 2.2 cm.

Ụdị n'ihi na elu uche receivers

N'ihi data receivers VHF poolu maka 430 MHz aka ya na-eme na a ígwè poolu. Ụfọdụ ndị ọkachamara na ike ịkwado ojiji nke naanị a curved ogbe. Na nke a, na counterweights ga-dịrị ke ukot eku. Ot VHF mpi gị aka na-eme na iche iche nke reflectors.

Malite modifying nzukọ dị mkpa ime ka isana poolu na ihapu wires jikọọ. Ọzọkwa, na-eme na ngwaọrụ gị aka mkpa bee anọ okporo osisi na a dayameta nke 2.2 cm. The nlereanya ke 200 MHz kwesịrị atọ n'akụkụ racks. Counterweights nwere ike arụnyere na na n'akuku nke 45 degrees. Ogidi na-n'ịnyịnya na ala nke osisi ọkọlọtọ.