Na gida HF mai karɓar ga mai son makada: Students

Na gida HF karba (short tãguwar ruwa) suna samar a kan tushen da juriya sauya. Mutane da yawa gyare-gyare sun hada da aike da adaftan da kuma sanye take da amplifiers. Standard stabilizer kewaye yana da mafi girma mita. Don daidaita tashar faders zuwa gammaye ana amfani.

Ya kamata kuma a lura da cewa masu karba ne daban-daban daga juna a watsin da kuma mita tetrode. Domin mafi kyau a magance wannan batu, dole ne mu yi la'akari da makirci da ya fi rare karba.

Low mita na'urorin

Students improvised HF mai karɓar low mita hada da wani controllable modulator, da kuma wani sa na capacitors. Resistors aka zaba domin na'urar 4 PF. Mutane da yawa model da lamba transistors, wanda aiki daga transducers. Ya kamata kuma a lura da cewa, da mai karɓar kewaye qunshi kawai radiyo iyakacin duniya.

Domin tashar saituna tambaya controls da aka shigar a farkon sarkar. Wasu model an yi tare da daya kawai adaftan, da kuma toshe su a karkashin zaba line irin. Idan muka yi la'akari da sauki model, suka yi amfani da ikon Grid. Yana aiki a wani mita na 400 MHz. Insulators aka shigar ga modulators.

Tube high mita juna

Na gida tube high mita HF karba hada lamba na'urori masu auna sigina da kuma riwayar da low watsin. Wasu masana magana gaskiya ma game da wadannan na'urori. Da farko, da suka lura da ikon gama radiyo. Triggers karkashin dace gyara irin ITR. Mafi sau da yawa akwai na'urorin da semiconductor resistors.

Idan muka yi la'akari da misali makirci, da comparator yana da wani daidaitacce irin. Resistors aka shigar a kanti da damar ba kasa da 3.4 PF. A watsin da aka ba saukar da kasa 5 microns. A kayyadewa da aka saka a kan uku ko hudu tashoshi. A mafi karba, daya kadai lokaci tace.

bugun jini gyara

Pulse na gida HF mai karɓar ga mai son makada iya aiki a mita na 300 MHz. Mai model an kara wa fil fins. A wasu lokuta, yin amfani da radiyo. Wayar na resistors dogara da watsin. Capacitance a fitarwa ne daidai da 3 PF.

Watsin contactors talakawan na 6 microns. Mai karba ake samar da wani dipole adaftan, wanda su dace da PP haɗawar. Very sau da yawa akwai condenser raka'a, wanda aiki a kan thyristors. Idan muka yi la'akari da tsarin da fitilu, shi ne muhimmanci a lura da cewa sun yi amfani da unijunction comparators. Suna hada kawai a mita na 300 MHz. Har ila yau, dole ne in ce cewa akwai model tare transistor.

A single-iyakacin duniya na'urorin

Yana da sauki kafa kai-yi, guda-tube HF karba. Hannuwansa faruwa model tare da m comparators. Mafi yawa daga cikin gyare-gyare da aka tsara tare da cakosoban low watsin. Standard mai karɓar kewaye da ya shafi yin amfani da dipole resistors wanda fitarwa capacitance daidai 4.5 PF. A watsin iya zama har zuwa 50 microns.

Idan ka da kansa tattara canji, da comparator bukatar girbi tare da transceiver. A resistors ake soldered a ga modulator. Resistance abubuwa, kamar yadda mai mulkin, ba ya wuce 45 ohms, amma akwai ban. Idan muka magana game da karba a kan gudun ba da sanda, suna da daidaitacce transistors ana amfani. Aiki data abubuwa daga modulator, kuma suka sãɓã wa jũna a ji na ƙwarai.

Gina Multi-iyakacin duniya karba

Abin da abũbuwan amfãni aikata Multi-iyakacin duniya injimin gano illa HF mai karɓar a kan mai son makada? Idan reviews masana yi imani, wadannan na'urori ba high mita da kuma ta haka cinye kadan da wutar lantarki. Mafi gyare-gyare da za dipole contactors da adaftan amfani da waya nau'in. Masu haɗin su dace da daban-daban azuzuwan.

Wasu model dauke da lokaci tace cewa rage hadarin gazawar da kalaman tsangwama. Ya kamata kuma a lura da cewa, misali iko makirci ya shafi yin amfani da mai kula su daidaita da mita. Comparators a wasu lokutta akwai tashar da irin. Lokacin da wannan transistor aka yi amfani da daya kawai isolator, da kuma watsin da shi ba ƙananan fiye da 45 microns. Idan muka yi la'akari da masu karba Expanders, suna iya aiki ne kawai a low mitoci.

Model tare dvuhperehodnym Converter

HF karba ga mai son makada da dvuhperehodnymi converters ne iya stably rike da mita a 400 MHz. Mutane da yawa model amfani da zener iyakacin duniya. Ya aiki daga transducer kuma yana da babban watsin. Standard gyare-gyare kewaye hada da wani mai kula for uku jimloli da wani capacitor. A amfilifa ne dace da model da varicap.

Ya kamata kuma a lura da cewa high-mita inverter na'urar da irin wannan zai iya da kyau jimre turu amo daga naúrar. Comparators ana amfani da layin wutar da capacitive resistors. Siga da juriya a kan kewaye shigar da shi ne daidai game da 45 ohms. A wannan yanayin, da mai karɓar ýan iya zama sosai daban-daban.

wani uku-waya Converter na'urorin

Na gida HF mai karɓar ga mai son makada da uku-waya Converter yana da guda contactor. Haši ana amfani da su farantin ba tare da shi. Ya kamata kuma a lura da cewa resistors amfani da daban-daban watsin. A farkon da sarkar akwai wani kashi 3 microns. Yana kullum ya shafi unipolar irin da ya wuce yanzu, a daya shugabanci kawai. A condenser aka located a baya shi da wani mikakke shugaba.

Ya kamata kuma a lura da cewa resistor a fitarwa na kewaye da low watsin. A da yawa karba ana amfani da m irin da zai iya gudanar halin yanzu a duka kwatance. Idan muka yi la'akari da canji a 340 MHz, sa'an nan ba za su iya saduwa da comparators Grid triodes. Sun yi aiki tare da ƙara juriya, da kuma irin ƙarfin lantarki ne kamar yadda 24 V.

Gyare-gyare zuwa 200 MHz

Na gida HF mai karɓar ga mai son makada da mita 200 MHz ne sosai na kowa. Da farko ya kamata a lura da cewa model ba su iya aiki a kan comparators. Ƙirgar gyare-gyare sau da yawa faruwa. Duk da haka, ya fi na kowa na'urorin aka dauke su a model mika mulki decoders. Su suna shigar da wani sa na adaftan. Resistors a farkon jerin high iya aiki suna amfani, da kuma juriya da suka yi a kalla daidaita zuwa 55 ohms.

Amplifiers hadu tare da tacewa da kuma ba tare da su. Idan muka yi la'akari da sauri gyara, sa'an nan suka Duplex capacitors ana amfani. A wannan yanayin, da stabilizer aka yi amfani da kayyadewa. Don daidaita tashar modulator ake bukata. Wasu karba aiki tare da masu karba. Bã su da wani jerin PP haši.

Na'urorin 300 MHz

Na gida HF mai karɓar ga mai son makada da mita 300 MHz hada da nau'i-nau'i biyu na resistors. Comparators for model hadu da watsin na 40 microns. Wasu gyare-gyare hada aike Expanders. Wadannan abubuwa iya muhimmanci offloads da capacitors.

Idan ka yi imani da masana 'ra'ayi, da model na da irin wannan suke da daraja hypersensitivity. Na gida na'urar sanya ba tare da Tetrodes. Don inganta sigina na madugu tambaya kawai transistors. Ya kamata kuma a lura da cewa, akwai na'urorin da tashar tacewa.

Gyare-gyare ga 400 MHz

Tuki na'urar a 400 MHz kwakwalwa aikace-aikace dipole adaftan da cibiyar sadarwa na resistors. Transceiver, tsarin da ake amfani da bude da tace. Don tara da na'urar da hannunku, da farko girbe tetrode. Capacitors karkashin shi podirayutsya low watsin da kuma ji na ƙwarai daga 5 MV. Ya kamata kuma a lura da cewa kowa da na'urorin suna dauke low-mita karba kamar gidajen wuta. Bugu da ari, domin tattara da na'urar da hannuwanku, shan daya modulator. Saka a gaban transducer aiki rabi.

Tube low ƙwarai na'urorin

Tube HF mai karɓar ga mai son makada m iya aiki a kan daban-daban tashoshi. A misali zane na na'ura shafi yin amfani da wani stabilizer. Lokacin da wannan adaftan da ake amfani da bude. A watsin da resistor dole ne a kalla 55 microns. Yana da muhimmanci a lura da cewa masu karba ake yi tare da faranti. Don tara da na'urar da hannãyenku, procured wani sa na capacitors. Capacity suka bukata ya zama a kalla 45 PF. Dabam, yana da muhimmanci a lura da cewa masu karba daga irin wannan suna bambanta da gaban Duplex adaftan.

high ƙwarai karba

high ƙwarai na'urar aiki a mita na 300 MHz. Idan muka yi la'akari da sauki model, aka tattara a kan tushen da comparator da watsin na 4 microns. A wannan yanayin, da tace ana damar amfani da ita a karkashin na biyu farantin.

Transistors unijunction da mai karɓar sa irin da tacewa amfani for 4 PF. Popular sau da yawa ya aike da radiyo. Suna da kyau watsin da kuma ba ya bukatar makamashi mai yawa.

A modulator iya kawai a yi amfani da daya varicap. Saboda haka, model ne iya aiki a kan daban-daban tashoshi. Don warware matsalolin da mummunan juriya amfani da wani capacitor bazuwa.