Homemade hf umamukeli for bands amateur: Isikimu

Homemade hf abamukelayo (amagagasi iDemo) akhiqizwa ngesisekelo ukumelana ukushintsha. ukulungiswa Abaningi zibandakanya olunezintambo adaptha ifakwe yokukhulisa umsindo. Standard isimame wesifunda has imvamisa ephakeme. Ukuze ulungise faders isiteshi ukuze asetshenziswa pads.

Kufanele kuqashelwe ukuthi le abamukelayo bengafani nomunye conductivity futhi imvamisa tetrode. Ukuze engcono yokubhekana nalesi daba, kumelwe sicabangele abamukelayo isikimu athandwa kakhulu.

imvamisa amadivayisi okuphansi

Isikimu ngokurhaba hf umamukeli imvamisa ongaphakeme kufaka modulator luyalawuleka, futhi iqoqo capacitors. Resistors zikhethwa yedivayisi 4 PF. onobuhle abaningi transistors contact, letisebenta kusukela transducers. Kufanele kuqashelwe ukuthi le wesifunda umamukeli yakhiwa transceivers kuphela isigxobo.

Ukuze isiteshi izilungiselelo isicelo Izilawuli ukuthi basuke efakwe ekuqaleni iketanga. Abanye onobuhle zenziwa nge-adaptha eyodwa kuphela, bese uxhume kubo ngaphansi akhethiwe umugqa hlobo. Uma sicabangela imodeli elula, ayesebenzisa amandla igridi. It usebenza imvamisa 400 MHz. Insulators ezifakiwe for modulators.

Tube imvamisa high iphethini

Homemade tube imvamisa high hf abamukelayo zihlanganisa contact izinzwa kanye zidlulisele nge conductivity ongaphakeme. Abanye ochwepheshe sokukhuluma kahle ngalezi amadivaysi. Okokuqala, bona wazi nokwazi ukuxhumeka transceivers. Izingcupho ngaphansi efanelekayo ukuguqulwa uhlobo ITR. Ngokuvamile kukhona amadivayisi nge Semiconductor resistors.

Uma sicabangela isikimu standard, comparator inohlobo adjustable. Resistors ezifakiwe kwayo kuleyo ndawo yokuhweba nge namandla hhayi ngaphansi kuka 3.4 PF. I conductivity akuyona eyehlisiwe ngezansi 5 microns. Umlawuli ogibele iziteshi ezintathu noma ezine. Ngo abamukelayo kakhulu, umusho owodwa isihlungi kuphela.

ishayela ukuguqulwa

Pulse okuzenzela hf umamukeli for bands amateur uyakwazi ukusebenza imvamisa of 300 MHz. onobuhle Iningi kunezelwa amaphiko pin. Kwezinye izimo, usebenzisa ama-transceivers. Sensitization ka resistors incike conductivity. Capacitance eMhlanganweni ekhishwa ilingana 3 PF.

Conductivity contactors isilinganiso 6 microns. abamukelayo eziningi ezikhiqizwa nge adapters dipole, afaneleka PP izixhumi. Isikhathi esining impela zikhona epholisayo amayunithi, okuyinto usebenza thyristors. Uma sicabanga imodeli yezibani, kubalulekile ukuphawula ukuthi ayesebenzisa unijunction comparators. Ahlanganisiwe ngalesi imvamisa 300 MHz. Futhi, mangisho ukuthi kukhona onobuhle Transistor.

Amadivayisi olulodwa-pole

Kulula ukuze usethe self-ezenziwe, elilodwa-tube hf abamukelayo. Izandla zakhe uya oyisibonelo comparators onhlobonhlobo. Iningi nokulungiswa zenzelwe stabilizers conductivity ongaphakeme. Standard umamukeli wesifunda kuhilela ukusetshenziswa dipole resistors kabani okukhipha capacitance kulingana 4.5 PF. I conductivity kungenzeka kuze kube microns 50.

Uma ngokuzimela ukuqoqa ukuguqulwa, le comparator kudingeka ukuvuna kanye transceiver. I resistors kuthiwa soldered kwi modulator. izakhi Ukumelana, njengoba umthetho, ingeqi 45 ohms, kodwa zikhona ezehlukile. Uma sikhuluma abamukelayo phezu edluliselwe, banayo asetshenziswa transistors adjustable. Sebenza izakhi idatha kusuka modulator, futhi kuhluke ukuzwela.

Yakha multi-pole abamukelayo

Ziyini izinzuzo owenza multi-pole umtshina hf umamukeli ku imichilo amateur? Uma Izibuyekezo izazi zikholelwa lezi amadivaysi ukunikeza imvamisa high futhi ngaleyo ndlela uqede ugesi kancane. ukulungiswa Iningi uya dipole contactors futhi adapters wasebenzisa wire hlobo. Izixhumi Site amakilasi ezahlukene.

Abanye onobuhle aqukethe isigaba nezihlungi kuncishiswe ingozi ukwehluleka wave erediyo. Kufanele kuphawulwe ukuthi indinganiso ukulawula uhlelo kuhilela ukusetshenziswa isilawuli ukuze ulungise imvamisa. Comparators kwezinye izimo kukhona uhlobo siteshi. Uma lokhu Transistor isetshenziswa ne isolator eyodwa kuphela, futhi conductivity akusiyo ngaphansana 45 microns. Uma sicabangela abamukelayo Wegazi, bayakwazi ukusebenza kuphela imisindo ephansi.

Amamodeli nge dvuhperehodnym Converter

Hf abamukelayo for bands amateur ne converters dvuhperehodnymi labo abazokwazi stably nokugcina imvamisa at 400 MHz. onobuhle abaningi basebenzisa isigxobo zener. Yena usebenza kusukela transducer futhi conductivity eliphezulu. Standard ukulungiswa isifunda sihlanganisa iSifundazwe isilawuli for okukhiphayo emithathu capacitor. Lo mshini kufanelekile onobuhle varicap.

Kufanele kuqashelwe ukuthi le ephezulu imvamisa inverter kudivayisi yalolu hlobo kungaba kahle ukubhekana ngomsindo ngiyibona kusukela unit. Comparators asetshenziswa nge grid capacitive resistors. Ukumelana sepharamitha sikokufaka wesifunda ilingana mayelana 45 ohms. Kulokhu, ukuzwela umamukeli zingase zishintshe kakhulu.

amadivaysi Converter emithathu wire

Homemade hf umamukeli for bands amateur nge Converter emithathu wire has a contactor olulodwa. Nezixhumi zisetshenziselwa ipuleti ngaphandle kwalo. Kufanele kuqashelwe ukuthi le resistors esetshenziswa conductivity ezahlukene. Ekuqaleni iketango kunethuba 3 microns. It ngokuvamile osebenza uhlobo unipolar futhi sihamba samanje isiqondiso eyodwa kuphela. I epholisayo itholakala emva ngayo umqhubi komugqa.

Kufanele kuqashelwe ukuthi le Resistor eMhlanganweni ekhishwa circuit babe conductivity ongaphakeme. Ngo abamukelayo eziningi asetshenziselwa uhlobo variable futhi kungaba ukuqhuba zamanje zombili izinkomba. Uma sicabangela ukuguqulwa at 340 MHz, kusho ukuthi bangakwazi ukuhlangana comparators igridi triodes. Basebenza ekumelaneni yanda, futhi voltage kufana nokuthi 24 V

Ukulungiswa 200 MHz

Homemade hf umamukeli for bands amateur nge imvamisa 200 MHz kuvamile. Okokuqala kufanele kuphawulwe ukuthi onobuhle abakwazi ukusebenza comparators. ukulungiswa Linear ngokuvamile zenzeka. Nokho, amadivaysi ezivamile kubhekwa ukuba decoders imodeli inguquko. Basuke efakwe nge iqoqo adapters. asetshenziswa resistors ekuqaleni uchungechunge umthamo omkhulu, kanye ukumelana banayo okungenani elilingana 55 ohms.

Yokukhulisa umsindo ukuhlangabezana ngezihlungi ngaphandle kwabo. Uma sicabangela ukuguqulwa Ukudayela ngalesosikhathi they Duplex asetshenziswa capacitors. Kulokhu, lo isimame isetshenziswa ne Regulator. Ukuze ulungise modulator isiteshi kuyadingeka. Ezinye abamukelayo bahlinza abamukelayo. Sinenkosi uchungechunge PP isixhumi.

Amadivayisi 300 MHz

Homemade hf umamukeli for bands amateur nge imvamisa 300 MHz kuhlanganisa amabili namabhuzu resistors. Comparators onobuhle ukuhlangabezana nge conductivity 40 microns. Ezinye ukushintshwa zihlanganisa Wegazi olunezintambo. Lezi zici can kakhulu offloads le capacitors.

Uma ukholwa ukuthi umbono ochwepheshe ', amamodeli zaloluhlobo zinzima hypersensitivity okhetheke khulu. kudivayisi Homemade elingenziwe Tetrodes. Ukuze uthuthukise isignali conduction isicelo transistors kuphela. Kufanele kuphawulwe ukuthi zikhona amadivaysi nesiteshi izihlungi.

Zokuguqulwa 400 MHz

Ukushayela idivayisi ngalesi MHz 400 eqala isicelo dipole adaptha kanye inethiwekhi resistors. Transceiver, imodeli isetshenziswa ukuvula isisefo. Ukuze ahlanganise kudivayisi ngezandla zakho, ngokuyinhloko kuvuna tetrode. Capacitors ngaphansi kwaso podirayutsya conductivity ongaphakeme lobukhali 5 mV. Kufanele kuqashelwe ukuthi le amadivaysi ezivamile ezibhekwa ongaphakeme-imvamisa abamukelayo ezifana transformers. Ngaphezu kwalokho, ukuze ngiqoqele idivayisi ngezandla zakho, ukuthatha omunye modulator. Egibele phambi transducer isici asebenzayo.

Tube amadivayisi ukuzwela ongaphakeme

Tube hf umamukeli for bands amateur Ezinkinobhweni ukwazi ukusebenza ku iziteshi ezahlukene. Isifanekiso ejwayelekile zedivayisi kuhilela ukusetshenziswa isimame. Uma le-adaptha isetshenziswa evulekile. I conductivity we Resistor kumele okungenani ibe 55 microns. Kubalulekile futhi ukuqaphela ukuthi abamukelayo zenziwa nge plate. Ukuze ahlanganise kudivayisi ngezandla zakho, sithenge iqoqo capacitors. Umthamo bona kufanele kube okungenani 45 PF. Endaweni ehlukile, kubalulekile ukuqaphela ukuthi abamukelayo yalolu hlobo zihlukaniswa khona Duplex adapters.

sensitivity high abamukelayo

okusezingeni eliphezulu idivayisi ukuzwela usebenza imvamisa of 300 MHz. Uma sicabangela imodeli elula, it is eqoqwe ngesisekelo the comparator nge conductivity 4 microns. Kulokhu, izihlungi avunyelwe ukuyisebenzisa ngaphansi ipuleti yesibili.

Transistors unijunction uhlobo umamukeli isethi kanye izihlungi esetshenziselwa 4 PF. Kaningi olunezintambo-transceivers. Sinenkosi conductivity ezinhle futhi asidingi amandla amaningi.

I modulator kungasetshenziswa kuphela nomunye varicap. Ngakho, imodeli uyakwazi bahlinza iziteshi ezahlukene. Ukuze ukuxazulula izinkinga ne ukumelana negative usebenzisa ukunwetshwa capacitor.