I-YAGI ANTANNA, njenge-Erictal Relictal Stratena, isetyenziswe ngokubanzi kwi-HF, VHF kunye ne-UHF. I-Yagi yi-antenna ye-shonten edubulayo equlethe i-oscillator esebenzayo (ihlala i-oscillator esongelweyo), isibonisi esisebenzayo kunye nenani lezibakala elingenayo.
Zininzi izinto ezichaphazela intsebenzo ye-I-Iriyali ye-YAGI, kwaye uhlengahlengiso lwe-I-I-Iriyali ye-YAGI inzima kunezinye ii-eriyan. Iiparamitha ezimbini ze-eriyali zilungiswe ikakhulu: irenti ye-prenadant kunye nomyinge omiweyo. Oko kukuthi, irente ye-Eriyanna ihlengahlengiswa nge-435mhz, kwaye umyinge we-eriyali oma kwi-eriyali usondele kwi-1 kangangoko kunokwenzeka.
Misela i-eriyali malunga ne-1.5m ukusuka emhlabeni, qhagamshela imitha yokuma yesaza kwaye uqalise umlinganiso. Ukwenzela ukunciphisa iimpazamo zemilinganiselo, intambo idibanisa i-eriyali ukuya kwimitha yokuma yesaza kunye nonomathotholo ukuya kumqolo omatshini wokuma kufuneka ube mfutshane kangangoko kunokwenzeka. Iindawo ezintathu zinokutshintshwa: Umthamo we-Strimmer Capermer, isikhundla sebhakethi yesekethe emfutshane kunye nobude be-oscillator esebenzayo. Amanyathelo ohlengahlengiso oluthile ngolu hlobo lulandelayo:
(1) Lungisa i-bar yesekethe emfutshane ye-5 ~ 6cm kude nebar emnqamlezweni;
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. Ukuba i-frequency ingaphezulu kakhulu okanye iphantsi kakhulu, amaza amabi alinganiselwe kwakhona ngokutshintsha i-oscillator esebenzayo yeemilimitha ubude okanye amafutshane;
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Xa i-eriyali ihlengahlengiswa, hlengahlengisa indawo ngexesha, ukuze kulula ukufumana umthetho wotshintsho. Ngenxa yendlela ephezulu yokusebenza, i-illitu Umzekelo, umthamo ohlengahlengisiweyo we-Cappat efanelekileyo ye-tuun uqhagamshelo kwi-γ ibha ngemihla imalunga ne-3 ~ 4pf, kunye notshintsho lwezishumi ze-PI indlela ye-PI (PF) iya kubangela utshintsho olukhulu kumaza amakhulu. Ukongeza, uninzi lwezinto ezinje ngobude bebha kunye nenqanaba lentambo ziya kuba nefuthe elithile kwimilinganiselo yamaza amileyo, ekufuneka iqwalaselwe kwinkqubo yohlengahlengiso.
IXESHA LOKUQALA: UNV-30 ukuya kwi-2022
