RF Technical Guides

• Mbiri Yakale ya Wailesi yaku Chicago: Imakula Motani Kuyambira 1900s?

  Ichi ndi chithunzithunzi cha mbiri yakale yawayilesi yaku Chicago, muphunzira kuchokera ku mbiri ya AM ndi FM yaku Chicago kuyambira 1900s mpaka 1990s. Pitani Pano kuti mudziwe zambiri!

  ndi/

  6 / 1 / 22

  967

• Discone Antenna 101 - Nkhawa Zanu Zonse Zayankhidwa M'dera Limodzi

  Ganizirani zomwe zimakuthandizani kuti muyang'ane bwino momwe tsamba lawebusayiti lilili kapena malo otsatirira bwino? Ndi Discone Antenna. Pakadali pano, poganizira kuti muli pansipa, tikuganiza kuti mulibe chidziwitso chilichonse chokhudza mlongoti uwu.

  ndi/

  5 / 11 / 22

  1350

• Momwe Mungamangirire Ndodo Zapansi Ndi Kuwotcherera Kwake kwa Exothermic?

  M'nkhaniyi, ndikuwululirani momwe mungagwiritsire ntchito CADweld uni-shot kumangiriza mizati yanu pansi. Njira iyi yomangira zingwe pansi pa ndodo zanu, imapewa dzimbiri, komanso imalumikizana ndi ndodo zanu zapansi. 

  by/ Bond Ground Ndodo Zokhala Ndi Kuwotcherera Kwambiri

  4 / 25 / 22

  820

• Momwe Mungamangire Mlongoti Wotembenukira pa Satellite Communication

  Pano pali mapulani omanga ndi kumanga antenna ya Turnstile yomwe ndimagwiritsa ntchito polumikizana ndi mlengalenga pagulu la wailesi la 2 metre amateur.

  by/ Pangani Mlongoti Wotembenukira pa Satellite Communication

  4 / 25 / 22

  1358

• CB Radio vs HAM vs Walkie Talkie vs GMRS

  Lolani kuti akhale mawailesi a CB, HAMS, Walkie talkies, kapena GMRS, ndi zosankha zabwino pama foni. Kodi mukufuna kukhala olumikizidwa ndi abale anu ndi anzanu pomwe wogwiritsa ntchito samakulipirirani ndalama zilizonse? Chabwino, izi ndi zinthu zomwe muyenera kusankha.

  ndi/

  4 / 25 / 22

  1100

• Momwe Mungapangire Mlongoti Woyima wa 2 Meter?

  Ngati mlongoti woyimirira wakale udataya ma radial komanso sunathe kugunda mawayilesi ambiri osachita masewerawa mozungulira, mudzafunika kupanga 2 mita 1/4 wave vertical antenna ya 146 mHz. wailesi ya amateur. Ndipo nayi kalozera wanu.

  ndi/ momwe mungapangire mlongoti woyima

  4 / 25 / 22

  1581

• Momwe Mungamangire Antenna ya 2 Meter Ya Panjinga Yam'manja?

  Mwina vuto lalikulu pakuyendetsa njinga ya HT ndikuganizira za mlongoti woyenera panjinga yanu. Izi ndichifukwa choti njingayo sipereka zambiri zandege yapansi. Nawa mapulani a mlongoti omwe adafotokoza mu positi.

  by/ Pangani Mlongoti wa Panjinga Yam'manja

  4 / 24 / 22

  953

• Momwe Mungapangire Mlongoti wa J-Pole wa 70cm Ham Band

  Nayi mlongoti wa J-pole wotchipa kwambiri womwe ndi wosavuta kupanga. Pa nthawi ya maola, komanso zinthu zamtengo wapatali zokwana $10, mutha kukhala ndi mlongoti wa j-pole wodabwitsa kwambiri.

  ndi/ Pangani Mlongoti wa J-pole wa Ham Radio

  4 / 24 / 22

  1000

• Konzani Zomangira Zomangira Zopangira Ma Antennas

  Posachedwapa, kuntchito, ndinali ndi kuthekera (kapena chofunikira) kuti ndipange chingwe chapang'onopang'ono cha mlongoti wa bay awiri. Komabe, ndinali ndi vuto. Ndidakhala pa intaneti zaka zingapo mmbuyo momwe ndingachitire izi pazochitika zanga za tinyanga, lero tsambalo linali litapita! Chotero ndinayenera kuzilingalira ndekha. Pambuyo pa maola ambiri ndikuyang'ana zolemba zanga (zosauka kwambiri), ndidazipeza.

  ndi/

  4 / 22 / 22

  875

• Momwe Mungakhalire Mlongoti wa NVIS Antenna AKA Cloud Burner Antenna Pogwiritsa Ntchito Mag Mount

  Gawo lokhala dalaivala wa wailesi ya ham ndikupereka mauthenga panthawi zadzidzidzi. Ndi Tsiku la Antenna la Ohio NVIS lomwe likubwera, ndinasankha kuyang'ana muzitsulo za NVIS. Tinyanga ta NVIS, zomwe zimatchedwanso Near Event Vertical Skywave tinyanga tating'onoting'ono tokhala ndi ma radiation. Chinachake pa dongosolo la madigiri 60, kuti mwachindunji 90 madigiri. Mosiyana ndi ma siginecha a UHF ndi VHF, omwe nthawi zambiri amakhala ndi mtunda wamakilomita 50 wokhala ndi mlongoti wa yagi mmwamba, komanso mlongoti wa NVIS umapangidwa kuti ugwirizane ndi mitundu ya 75-- 500-mile. Nthawi zina mlongoti wa NVIS umatchedwa "chotenthetsera mitambo" chifukwa umatulutsa ma radiation ambiri m'mwamba kuposa mlongoti wamba.

  ndi/

  4 / 22 / 22

  902

• Dzichitireni Nokha Shelufu Yanu Yazida Ndi Table Yopanda - LackRack

  Posachedwapa ndidafuna choyikapo zida 19 ″. Koma pokhala wotsika mtengo, ndinaganiza zomanga. Ndikusaka pa intaneti, ndidapeza chomwe chimatchedwa LackRack, chomwe chimagwiritsa ntchito IKEA's Lack Table. Komabe kuwerenga kopitilira muyeso kudawulula zinthu zingapo zomwe ndimaganiza kuti zinalibe pamapangidwe oyambira a LackRack.

  ndi/

  4 / 22 / 22

  827

• Momwe Mungakhazikitsire Zida mu Shelf 19 Inchi

  Popeza pafupifupi onse 19 '' zida poyimitsa gwiritsani ntchito zomangira 10-32 muzitsulo zawo zam'mbali, pezani ziwiri ndikuyika mtedza 10-32 pa screw, ndikuziphatikiza pamodzi. Ndiye chepetsani chinthu chonsecho mu vise.

  ndi/

  4 / 21 / 22

  1253

• Momwe Mungapangire Kufupikitsidwa kwa 20 mpaka 40 Meter Vertical kwa POTA

  Pali china chake chosangalatsa pakutsegula kwa POTA komwe mumalowa ndi zida zanu zonse ndikuyambitsanso paki yomwe ili ndi mphamvu ya QRP.

  ndi/

  4 / 21 / 22

  1164

• Momwe Mungamangire DIY 2 Meter J-pole Antenna

  Ngati mukuyang'ana mlongoti wotsika mtengo, komanso wosavuta kumanga, mlongoti wa J-pole ndi wabwino kwambiri! Pafupifupi nthawi ya maola, komanso zinthu zamtengo wapatali pafupifupi $15, mutha kukhala ndi mlongoti wa j-pole wochita modabwitsa.

  by/ DIY J pole mlongoti

  4 / 20 / 22

  1781

• Kodi Broadcasting Ndi Chiyani Ndipo Imagwirira Ntchito Bwanji? - FMUSER

  Kodi kuwulutsa ndi chiyani ndipo chifukwa chiyani muyenera kusamala? Nayi chiwongolero chonse chokhudza kuwulutsa kwa FMUSER, kuphatikiza zomwe zili komanso momwe zimagwirira ntchito. Pitirizani kufufuza!

  ndi/

  8 / 24 / 22

  1336

• Chidule Chachidule cha Broadcast Production Technology - FMUSER

  Kodi ukadaulo wopanga mawayilesi ndi chiyani ndipo chifukwa chiyani muyenera kusamala? Nayi chidziwitso chonse chaukadaulo wopanga mawayilesi ndi mitundu ina yake. Pitirizani kufufuza!

  ndi/

  4 / 6 / 22

  1200

• Phukusi Lokwanira Lazida Zapa Wailesi Yomwe Mukuyenera Kukhala Nawo pakuwulutsa kwa FM

  Ndi mitundu ingati ya zida zowulutsira zomwe zilipo mu wayilesi yathunthu, ndipo zida zoulutsirazi zimagwirira ntchito limodzi bwanji. Kodi mungagule kuti zida zaukadaulo zoulutsira mawu? Tsambali liyankha mafunso awa.

  ndi/ Zida Zathunthu Zowulutsa za FM

  7 / 27 / 22

  1715

• RF Sefa mu Radio Broadcasting

  Pakulankhulana pawailesi, fyuluta ya RF ndi chida chofunikira kwambiri chamagetsi. Potumiza ma siginecha pawailesi, nthawi zonse padzakhala magulu omwe sitikufuna, monga ma siginecha ena osayenera; kapena mwina pazifukwa zina zapadera, sitifuna kusiyanasiyana kwa ma frequency mu ma siginecha a wailesi. Pakadali pano, tifunika kusefa ma frequency osafunikira kudzera muzosefera za RF. Ndiye mtundu wanji wa zida zamagetsi ndi RF fyuluta ndipo n’chifukwa chiyani zili zofunika kwambiri? Gawo ili ndikuyankha funsoli.

  ndi/ Kodi RF Fyuluta ndi chiyani

  7 / 29 / 22

  1997

• DIY ndi FM Radio Dipole Antenna | FMUSER BROADCAST

  Mlongoti wa dipole wa FM ndiye mtundu wosavuta komanso wokulirapo wa mlongoti, kotero ndikosavuta kuti aliyense adzipangire yake, yomwe imangofunika zida zosavuta. antenna ya DIY FM dipole ndi chisankho chothandiza komanso chotsika mtengo ngati wailesi yanu ikufuna mlongoti wakanthawi. Nanga bwanji DIY ndi FM dipole antenna? Nkhaniyo ikuuzani.

  by/ FM Antenna DIY

  5 / 11 / 22

  3000

• Momwe Mungapezere Ma frequency Osagwiritsidwa Ntchito a FM Radio Transmitters?

  Mawayilesi a FM ndi imodzi mwanjira zosavuta komanso zotsika mtengo kwambiri zomvera nyimbo zapa foni yanu yam'manja. Koma kwa rookie, zitha kukhala zovuta kupeza ma frequency opanda zosokoneza. Ngati mukuvutikira kupeza ma frequency osagwiritsidwa ntchito a FM, kugawana uku kudzakuthandizani.

  ndi/ Pezani Mafupipafupi a FM Osagwiritsidwa Ntchito

  9 / 21 / 21

  5659

• Momwe Mungapangire Dera Losindikizidwa kukhala Borad? | | PCB Kupanga Njira

  PCB, yomwe imadziwikanso kuti bolodi losindikizidwa, imapangidwa ndi zinthu zosiyanasiyana zomwe sizimayendetsa kuti zithandizire komanso kulumikiza zida za socket pamwamba. Koma kodi ntchito ya bolodi yosindikizidwa ndi yotani? Kodi bolodi losindikizidwa limapangidwa bwanji? Werengani zotsatirazi kuti mudziwe zambiri zothandiza.

  ndi/ Momwe Mungapangire Bungwe la PCB

  10 / 29 / 21

  2137