Teev-periodic kav hlau txais xov: muab xam los ntawm qhov ntev thiab yooj yim yam ntxwv

Teev-periodic antennas yog dej num raws li directional units. Qauv yuav khiav lag luam ntawm luv luv wavelengths. Feem ntau cov pab kiag li lawm yog nruab nrog vysokoprovodimym Reflector. Ib txhia kev hloov kho yog ua mus rau lub vaj huam sib luag vibrator. Lawv muaj ib tug los yog ntau tshaj amplifiers. Nws yuav tsum raug sau tseg hais tias muaj li nrog ib tug channel transmitter.

Yuav ua li cas yog lub ntsiab tsis nyob rau hauv lub cav-periodic kav hlau txais xov hom? Ua ntej ntawm tag nrho nws yog ib qho tseem ceeb coj mus rau hauv tus account lub zaus ntawm tus dais. Tsis tas li ntawd yog los ntawm cov kws txawj directivity thiab koj qhov nce. Tswv yim impedance kuj muaj feem xyuam rau cov kav hlau txais xov tsis.

muab xam ua qauv

Muab xam los kav hlau txais xov tshwm sim raws li nyob rau hauv qhov ntev ntawm lub strut. Yog hais tias peb xav txog ib tug qauv uas muaj ib vibrator, lub Reflector yog siv dipole hom. Nrog ib tug ntev ntawm 20 cm, lub dav ntawm lub vaj huam sib luag yuav tsum 30 cm. Los ua qhov loj ntawm lub khib, lub vaj huam sib luag yog xaiv coj qhov ntev.

Tus ntaus ntawv nrog koj ob txhais tes

Ib tug cav-periodic kav hlau txais xov nrog nws ob txhais tes ntau quav tso nrog ib tug yooj yim Reflector, thiab cov vibrator yog zoo dua siv nrog ib tug extension qaum. Thawj muab tso ncaj qha mast. Racks yog tsau siv cov vuam siv lub tshuab. Kws txawj qhia kom sai li sai tau nruab ib lub amplifier.

Thaiv yuav tsum tau siv nrog av xwb. expanders ntawm ntau hom yog siv los txo cov zaus. Feem ntau cov qauv yog powered los ntawm kev sib cuag adapters. Lub sab sauv khib yog tsim nyog yuav tau mus thov ib tug me me txoj kab uas hla. Nws tseem yog tsim nyog them sai sai mus rau sab adapter, uas ncaim ntawm cov hlau. Nyob rau hauv lub xam qauv rau qhov luaj li cas cav-periodic kav hlau txais xov.

Tus qauv rau tej yam yooj yim receiver

Teev-periodic kav hlau txais xov Masts no yog ua los ntawm cov uas tsis muaj siab rau tej yam yooj yim receivers. Feem ntau cov kev hloov uas pom tau hais tias nyob rau hauv lub peb racks. Yog hais tias peb xav txog cov kav hlau txais xov nrog ib tug adapter, lub Reflector yog thov mus rau lub capacitor. Nws yuav tsum tau muab sau tseg tias cov mast yog tsau mus rau lub khib. Qw nyob rau hauv cov ntaub ntawv no yog tsis tshua muaj heev. Adapters muaj kav hlau txais xov mounted los ntawm cov pab pawg. Kws txawj hais tias lub feem ntau nrov qauv yog xam tau tias yog nrog dipole adapters. Lawv muaj peev xwm ua hauj lwm rau hauv lub luv luv yoj.

Ib tug ntaus nrog ib tug khib

Kav hlau txais xov audio txais tos yog tsis faib ib siab conductivity. Nyob rau hauv kev ua lag luam muaj cov pab kiag li lawm nrog rov qab vibrators. Lawv siv ib tug ncaj ntau them nyiaj yug. Nyob rau tib lub sij hawm uas tuav tsim ib tug me me dav. Yog hais tias peb xav txog cov txheej txheem cav-periodic kav hlau txais xov hom, nws muaj ib tug tib Reflector. Khib mounted rau cov mounting kev muag zaub. antennas yog feem ntau muag tsis muaj cov uas tuav. Lawv khib muab nrog ib tug dav puag. Qhov siab tshaj plaws zoo yog hais tias yuav pab kiag li lawm nrog enhanced adapters. Vibrators kuj yuav ntsia tsis muaj ib tug adapter. Es nyob rau hauv cov ntaub ntawv no, muaj ib tug me me ntev.

Model nrog ob racks

UHF cav-periodic kav hlau txais xov nrog ib tug ob-teev tau ib lub Reflector rau hauv peb raws. Kws txawj hais tias cov qauv muaj kev sib txawv conductivity. Thaum koj xaiv kev hloov kho tau them sai sai mus rau lub kev hloov kho ntawm cov nyiaj them yug. Tuav tseg tej zaum yuav teem L-zoo li tus. Heev feem ntau, qhov no hom ntawm kav hlau txais xov ntsia saum lub ru tsev.

Devices haum rau ua TV channel. Txawm li cas los, lawv tsis muaj peev xwm ua hauj lwm ntawm tag nrho cov frequencies. Nyob rau hauv cov ntaub ntawv no, ntau npaum li cas nyob rau hauv tus duab ntawm lub Reflector. Niaj hnub nimno versions ntawm antennas logoperiodic hom yog siv nrog zis amplifiers. Nyob rau hauv lawv teem tsuas qhib adapters. Nyob rau hauv cov ntaub ntawv no, vibrators yog mounted nyob rau hauv qhov chaw ntawm lub khib. Mast txawv nyob rau hauv ntev. Ntawm no ntau npaum li cas nyob rau hauv dav ntawm lub khib. Conductivity nyob rau cov hloov ntawm lub Reflector. Hlau kav hlau txais xov yuav tsum ncaim ntawm lub expander.

kab rov tav antennas

Kab rov tav kav hlau txais xov rau TV logoperiodic hom stands dav stance. Muaj ntau cov qauv siv ib tug ntev mast thiab kev pab txhawb nqa no xwb ua los ntawm txhuas hlau. Yog hais tias qhov kev kawm, ib tug cav-periodic kav hlau txais xov hom yuav ua tau nws tus kheej. Nws yog zoo suited rau cov receiver tsis yog ib tug loj lub hwj chim. Kws txawj hais tias cov thawj yas dhos yog muab tso rau. Tsuas yog ces yuav tau teem lub mast. Cov kauj ruam tom ntej yog muab tso rau hauv lub Reflector. Yog hais tias peb xav txog shoplifting kev hloov kho, lawv muaj ob vibrators.

Feem ntau cov qauv no yog ua los tsis muaj lawm. Racks lawv yog nyob rau hauv ib tug kab rov tav txoj hauj lwm. Yuav kom muab lub cav-periodic kav hlau txais xov uas siv sab fastening ntsiab ntawm cov hlau. Nws yuav tsum raug sau tseg hais tias muaj yog ib tug loj cov kev hloov kho nyob rau hauv uas lub amplifier yog ntsia. Enhancers raug xaiv los ntawm pab kiag li lawm siab conductivity. Heev feem ntau, muaj pab kiag li lawm nyob rau hauv kev ua lag luam nrog ib tug tsis zoo polarity. Ua ntej ntawm tag nrho cov, kws txawj hais tias lawv muaj tsis muaj teeb meem nrog luv luv tsis heev thiab siab tau. Los ntawm cov qauv suav yog ncaj qha nyob rau qhov luaj li cas ntawm cav-periodic kav hlau txais xov.

ntsug kev hloov kho

Feem ntau pom nyob rau hauv khw muag khoom noj ntsug cav-periodic kav hlau txais xov. qauv xam yog nqa tawm raws li nyob rau hauv lub khib loj. Vertical cav-periodic kav hlau txais xov hom ua nrog reflectors ntawm txawv conductivity. Feem ntau cov qauv no yog ua los hu rau tus adapters.

Koj tseem yuav nrhiav tau pab kiag li lawm tsis muaj amplifiers nyob rau hauv khw muag khoom noj. Raws li ib tug txoj cai, lawv siv luv luv reflectors, thiab vibrators teem shortwave hom. Qhov tsawg kawg nkaus pub zaus kav hlau txais xov nyob ntawm ntau yam tseem ceeb. Nyob rau hauv cov ntaub ntawv no, tus neeg siv yuav tsum coj mus rau hauv tus account lub kuj ntawm lub Reflector. Nyob rau hauv tas li ntawd, nws yog tsim nyog los paub qhov hom expander. Feem ntau cov qauv yog muag nrog pa controllers.

Lub apparatus 144 MHz

hom cav-periodic kav hlau txais xov yog ua nrog ntev studs, thiab vibrators yog siv nrog kev txhawb zog. Tus txheem qauv muaj xws li ib tug connector. Amplifiers rau no hom kav hlau txais xov teev periodic txheej txawv zog. Nyob rau hauv tas li ntawd, nws yog ib qho tseem ceeb yuav tau nco ntsoov hais tias cov kev hloov kho yog txawv nyob rau hauv conductivity. Ib txhia pab kiag li lawm yog ua los nrog ib tug txee. Lawv muaj tsawg tswv yim impedance. Feem ntau, lawv yog ua nrog ib tug vibrator tso zis. Tuav tseg yog teem tsawg qhov chaw siab tshaj. Yog hais tias qhov kev kawm, xws li ib kav hlau txais xov cav-periodic hom yuav ua tej yam tus txiv neej. Nyob rau hauv cov ntaub ntawv no, nws yog ib qho tseem ceeb los mus laij lub qhov siab ntawm lub khib.

Kev hloov kho ntawm 145 MHz

Kav hlau txais xov TV ntawm no hom yog tsuas nrog dipole reflectors. Nyob rau hauv cov ntaub ntawv no, vibrators yog siv nrog ib tug nruab nrab conductivity. Kws txawj hais tias lub lag luam yog heev kev hloov kho rau wired adapters. Reflectors lawv yog mounted rau racks. Sab txhawb yuav ua tau loj heev. Tsis tas li ntawd tsim nyog ceeb toom theem siab ntawm kuj nyob rau hauv cov ntaub ntawv teev periodic kav hlau txais xov hom.

Yog hais tias qhov kev kawm, tus qauv yuav tsum tau koom ua ke nyob rau hauv tsev. Ua hauj lwm rau lub hom phiaj no yog hlau posts, uas sib thooj, los ntawm txoj kev ntawm ib tug vuam inverter. Lub vibrator yog siv nrog ib tug hluas tso zis. Cov hlau kav hlau txais xov yog tsau mus rau lub expander. Raws li ib tug txoj cai, nws yog mounted rau hauv qab ntawm lub mast.

Model nrog tooj liab mast

Ib tug cav-periodic kav hlau txais xov T2 tooj liab mast remarkably ua hauj lwm nyob rau txawv frequencies. Standard qauv muaj xws li ib tug adapter pin uas yog tsau nyob rau hauv qab ntawm lub khib. Vibrators rau qauv thov tsuas mus rau cov expander. Nws yuav tsum tau muab sau tseg tias cov khw muaj ib tug kav hlau txais xov nrog thoob plaws reflectors. Feem ntau ntawm lawv muaj peev xwm khiav thaum uas tsis muaj frequencies. Kws txawj hais tias muaj yog ib qho rov qab polarization ntaus ntawv. Rau cov extenders yog siv nrog hu reflectors. Ib co ua qauv yog nruab nrog amplifiers, uas yog kev cob cog rua rau lub sub.

Devices nrog steel mast

Teev-periodic kav hlau txais xov nrog ib tug hlau mast yuav ua tau nws tus kheej. Kws txawj pom zoo kom rau no sau sab txhawb. Feem ntau cov qauv muaj ib tug high conductivity, thiab lawv yog cov zoo suited rau cov uas ua ib lub teeb liab. Vibrators yog siv nyob rau hauv cov qauv ntawm cov sib txawv rhiab heev. Nyob rau hauv cov ntaub ntawv no, lub amplifiers feem ntau yog ntsia rau hauv qab ntawm lub mast. Kws txawj hais tias nws yog tsim nyog los txhim kho lub adapter tsuas yog los ntawm cov transistor thiab lub hwj huam mov.

Nyob rau hauv tas li ntawd, nws yog ib qho tseem ceeb yuav tau nco ntsoov hais tias thaum lub rooj sib txoos qauv yuav ua rau muaj teeb meem nrog nws sawv. Yog hais tias peb xav txog shoplifting antennas, lawv muaj ib tug zoo yas dhos. Hais tias pem hauv ntej kev pab txhawb nqa securely tsau ncaj qha rau ntawm lub mast apparatus.