Fufuzani-zodziwitsa mlongoti: mawerengedwe miyeso ndi makhalidwe

tinyanga fufuzani-zodziwitsa anawagawira ngati mayunitsi mbali. Chitsanzo amakonda ntchito pa mlengalenga ngati kuwala kochepa. zipangizo zambiri zili ndi imaonetsa vysokoprovodimym. Ena zosintha anapangidwa kwa gulu vibrator. Ali amplifiers umodzi kapena kuposerapo. Iwo ayenera kukumbukira kuti pali zipangizo ndi chopatsilira njira.

ndi magawo waukulu mu mtundu chipika-zodziwitsa mlongoti chiyani? Choyamba n'kofunika kuganizira pafupipafupi chipangizo. Komanso kuonedwa ndi akatswiri directivity ndi phindu. Lowetsani impedance nawonso amakhudza magawo mlongoti.

zitsanzo mawerengedwe

Yowerengera mlongoti zimachitika potengera kutalika kwa strut lapansi. Ngati tikambirana chitsanzo ndi vibrator, ndi imaonetsa ntchito dipole mtundu. Ndi kutalika 20 cm, M'lifupi mwa gulu ayenera 30 cm. Ndi kukula kukula kwa pachithandara, ndi gulu amusankha miyeso kake.

The chipangizo ndi manja anu

A chipika-zodziwitsa mlongoti ndi manja ake apangidwe ndi imaonetsa losavuta, ndi vibrator bwino ntchito ndi chingwe magetsi. Choyamba aikidwa mwachindunji mlongoti. Poyimitsa ndi kuliika ntchito makina kuwotcherera. Akatswiri kwa yomweyo kukhazikitsa ndi mkuzamawu.

Kulumikizana ayenera kugwiritsidwa ntchito pokhapokha. zochulukitsira a mitundu yosiyanasiyana ntchito kuti muchepetse pafupipafupi. zitsanzo ambiri zoyendetsedwa ndi adaputala azamagetsi kukhudzana. The pachithandara chapamwamba m'pofunika kutsatira awiri ang'onoang'ono. M'pofunikanso kulabadira kwa adaputala m'munsi imasiyana waya. Malinga ndi mawerengedwe chitsanzo pa kukula chipika-zodziwitsa mlongoti.

The chitsanzo wolandila yosavuta

Fufuzani-zodziwitsa mlongoti masts anapangidwa ndi kutalika otsika kuti amalandira yosavuta. The zosintha ambiri amaona kuti kukhala pa poyimitsa atatu. Ngati tikambirana mlongoti ndi adaputala mmodzi, imaonetsa umagwiritsidwa ntchito capacitor lapansi. Iwo ayenera kukumbukira kuti mlongoti chili pachithandara. Fuula Pankhaniyi chosowa kwambiri. Adaputala azamagetsi ndi mlongoti ndi wokwera kudzera m'mabokosi a. Akatswiri amanena kuti anthu otchuka kwambiri amaonedwa ndi adaputala azamagetsi dipole. Iwo akhoza ntchito aafupi yoweyula.

chipangizo A ndi chikombole ndi

Mlongoti zomvetsera phwando si allocated ndi madutsidwe mkulu. Pa msika pali zipangizo ndi vibrators iwowo. Iwo anagwiritsa ntchito thandizo mwachilungamo lonse. Pa nthawi yomweyo zopalira anakhazikitsa m'lifupi yaing'ono. Ngati tikambirana mfundo chipika-zodziwitsa mlongoti mtundu, ali imaonetsa umodzi. Pachithandara wokwera pa maimidwe ogwiritsa. tinyanga nthawi zambiri anagulitsa popanda zopalira. Iwo pachithandara anapereka ndi m'munsi lonse. Wapamwamba imatengedwa kuti zipangizo ndi adaputala azamagetsi kuzikonzanso. Vibrators angathe kuikidwa popanda adaputala ndi. Amaima mu nkhani iyi, pali kutalika yaing'ono.

Model ndi poyimitsa awiri

UHF fufuzani-zodziwitsa mlongoti ndi maola awiri anapanga ndi imaonetsa pa njira zitatu. Akatswiri amanena kuti zitsanzo ali madutsidwe osiyana. Pamene inu kusankha zosintha ndi kulabadira kwa kusinthidwa thandizo. Zopalira mwina anapereka L-mphako. Nthawi zambiri, mtundu wa mlongoti anaika pa denga.

Zipangizo oyenera kupanga TV njira. Komabe, iwo sangathe ntchito pa mafurikwense onse. Pankhaniyi, zimadalira pa mawonekedwe a imaonetsa lapansi. Mabaibulo yamakono ya mtundu tinyanga logoperiodic ntchito ndi amplifiers linanena bungwe. Pansi zakonzedwa adaputala azamagetsi yekha lotseguka. Pankhaniyi, vibrators ali wokwera pakati pa pachithandara. Mlongoti amasiyana kutalika. Apa zimadalira m'lifupi pachithandara. Madutsidwe zimadalira kusinthidwa wa imaonetsa lapansi. Waya mlongoti ayenera achoke expander lapansi.

tinyanga yopingasa

Cham'mbali mlongoti mtundu TV logoperiodic waima mochititsa lonse. zitsanzo zambiri ntchito mlongoti yaitali ndi thandizo pokhapokha zopangidwa aloyi zotayidwa. Ngati n'koyenera, chipika-zodziwitsa mlongoti mtundu zikhoza kuchitidwa paokha. Ndi loyenereradi wolandirayo si mphamvu zazikulu. Akatswiri amanena kuti chofukizira woyamba aikidwa. Only ndiye kungathe mlongoti. Chotsatira ndi kuika imaonetsa. Ngati tikambirana kusinthidwa m'sitolomo, ali vibrators awiri.

zitsanzo zambiri anapangidwa popanda oyima. Poyimitsa ali mu malo yopingasa. Kukhazikitsa chipika-zodziwitsa mlongoti mtundu ntchito zinthu yotakata yolusa wa zitsulo. Iwo ayenera kukumbukira kuti pali mkulu pafupipafupi kusinthidwa imene mkuzamawu waikidwa. Enhancers amasankhidwa yekha ndi zipangizo za madutsidwe mkulu. Nthawi zambiri, pali zipangizo pa msika ndi polarity negative. Choyamba, akatswiri amanena kuti alibe mavuto ndi mafunde yochepa phindu kwambiri. Kuyambira chitsanzo anapezazo ndi mwachindunji amadalira kukula kwa mlongoti chipika-nthawi.

kusinthidwa ofukula

Amapezeka masitolo ofukula chipika-zodziwitsa mlongoti. chitsanzo mawerengedwe ikuchitika zochokera kukula chikombole. Ofukula chipika-zodziwitsa mlongoti mtundu anapanga ndi amasonyeza wa madutsidwe osiyana. zitsanzo ambiri mwa kulankhula ndi adaputala azamagetsi.

Mungapezeponso zipangizo popanda amplifiers m'masitolo. Monga ulamuliro, iwo ntchito amasonyeza lalifupi, ndi vibrators zakonzedwa shortwave mtundu. The osachepera kololeka pafupipafupi mlongoti kumatengera zifukwa zambiri. Pankhaniyi, wosuta ayenera kuganizira kulimbikira imaonetsa lapansi. Komanso, m'pofunika kudziwa mtundu wa expander. zitsanzo zambiri amagulitsidwa ndi anthu opha ochiritsira.

The zida 144 MHz

mtundu wa mlongoti chipika-zodziwitsa wopangidwa ndi studs yaitali, ndipo vibrators ntchito ndi zogwiriziza. Muyezo chitsanzo zikuphatikizapo cholumikizira wina. Amplifiers kwa mtundu uwu mlongoti fufuzani nthawi ya mphamvu osiyana. Komanso, tiyenera kukumbukira kuti zosintha ali osiyana mu madutsidwe. Ena zipangizo anapangidwa ndi kauntala. Ali otsika athandizira impedance. Childs, iwo amapangidwa ndi vibrator linanena bungwe. Zopalira zakonzedwa otsika okwera. Ngati n'koyenera, chotero mlongoti chipika-zodziwitsa mtundu akhoza kupanga munthu aliyense. Pankhaniyi, ndikofunika kudziwa kutalika kwa pachithandara.

Kusinthidwa pa 145 MHz

Mlongoti TV wa mtundu uwu okha ndi amasonyeza dipole. Pankhaniyi, vibrators ntchito ndi madutsidwe pafupifupi. Akatswiri amanena kuti msika ndi zosintha zachilendo kwa adaputala azamagetsi basi anatumizanso lamya. Amasonyeza kuti ali wokwera pa poyimitsa. Mbali zogwiriziza akhoza kwambiri. Komanso kuwaganizira mkulu mlingo wa kukana mu deta fufuzani nthawi mlongoti mtundu.

Ngati n'koyenera, chitsanzo akhoza anasonkhana kunyumba. Akatswiri Mwaichi ndi posts zitsulo, amene cholukanalukana mwa inverter ndi kuwotcherera. vibrator ntchito ndi linanena bungwe limodzi. Waya mlongoti chili kuti expander lapansi. Monga ulamuliro, izo yakwera pansi pa mlongoti wa.

Model ndi mlongoti mkuwa

A chipika-zodziwitsa mlongoti T2 mkuwa mlongoti modziwika ntchito pa mafurikwense osiyana. Standard chitsanzo kumaphatikizapo pini adaputala amene chili pansi pa pachithandara. Vibrators kwa zitsanzo ntchito kokha expander lapansi. Iwo ayenera kukumbukira kuti sitolo ali ndi mlongoti ndi amasonyeza lonse. Ambiri a iwo akhoza kuthamanga pa mafurikwense otsika. Akatswiri amanena kuti pali osiyanitsidwa kugawanika chipangizo. Pakuti extenders awa amagwiritsidwa ntchito amasonyeza kukhudzana. Ena zitsanzo zili ndi amplifiers, amene olumikizidwa kwa boma la.

Zipangizo ndi zitsulo mlongoti

Fufuzani-zodziwitsa mlongoti ndi mlongoti zitsulo zikhoza kuchitidwa paokha. Akatswiri amalangiza cha thandizo zokolola zambiri. zitsanzo ambiri madutsidwe mkulu, ndi iwo ali chiliri kupanga chizindikiro. Vibrators ntchito zitsanzo za tilinazo osiyana. Pankhaniyi, amplifiers ndi zambiri anaika pansi pa mlongoti wa. Akatswiri amanena kuti m'pofunika kukonza adaputala kudzera mu transistor ndi magetsi.

Komanso, tiyenera kukumbukira kuti pamene khamu chitsanzo zingathe kubweretsa mavuto ndi yaima. Ngati tikambirana m'sitolomo tinyanga, ali mwini kwambiri. Anati thandizo kutsogolo adzatsekeredwa atathana mwachindunji pa zida za mlongoti.