Yadda Ake Gina Eriya Tsaye Mita 2?

Ina buƙatar canza tsohuwar eriya ta 2 Mita 1/4 na tsaye don 146mHz. band din rediyo mai son. Tsohuwar ta yi hasarar radiyon sa kamar yadda ban sami damar bugi yawancin masu maimaita rediyo a kusa ba. Don haka kasancewa mai son gina eriya, a ƙasa shine abin da na haɓaka. Hoton da ke ƙasa yana shirye-shiryen samfuran tabbas za ku buƙaci haɓaka eriyar madaidaiciyar igiyar ruwa ta mita 2 1/4 don 146mHz. band din rediyo mai son.

A ƙasa akwai jerin abubuwan da ake buƙata don gina eriya ta tsaye ta mita 2:

• 3/4 ″ PVC bututu-- Tsawon da ya dace
• 3/4 ″ adaftar 8xMPT
• 3/4 ″ THD Dome Cap
• SO-239 tashar jiragen ruwa
• 6 ft. 14 GA Romex USB
• qty. 4 4-40 bakin sukurori
• qty 8 4-40 bakin goro
• 50 ohm coax Length don daidaitawa

Hanya mai sauƙi kuma mai sauƙi don samun 14 ga. wayar jan karfe shine zuwa kantin kayan aiki kuma a sami wasu kebul na Romex. Abu na farko da za ku yi shi ne cire igiyar tagulla daga cikin kubewar kebul na Romex, bayan haka za ku ga igiya maras amfani, kebul baƙar fata da fari. sannan a cire abin rufe fuska daga igiyoyin baki da fari kuma. Lokacin da kuka ƙare, yakamata ku sami igiyoyin jan ƙarfe 3 danda basu da tsayi 6 ft. 12 GA. Kebul na iya yiwuwa ya fi kyau, saboda yana da girma kuma yana da ƙarfi, duk da haka na yi amfani da abin da na ɗauka. Yanke kebul guda 5, kowane tsayin inci 22.

Sai na gyara kowace igiya gwargwadon yadda zan iya, duk da haka ba su yi daidai ba. Don haka na aza wani katako a ƙasa wanda ya fi na igiyoyi tsayi, na shimfiɗa waya ɗaya a kan allo, na kuma sanya ƙarin allo ban da wayar. Sa'an nan na dogara da allon da kuma nada kebul tsakanin allunan. Wannan ya sanya su daidai ba tare da wasu ƙananan murɗaɗɗen igiyoyin ba.

Na gaba, Na ɗauki 3/4 ″ THD Dome Cap kuma na haƙa rami 5/8 ″ tare da shi. Na fara da rawar sojan 5/32 ″ azaman buɗewar matukin jirgi, sannan na ƙare tare da 5/8 ″ speedbor spade bit. Lokacin da kuka gama, yana buƙatar kama hoton hagu reshe.

Sa'an nan na ɗauki abubuwa 4 na kebul na jan karfe, waɗanda za a yi amfani da su don radials na eriya, sannan kuma na lankwasa ƙugiya kaɗan a gefe ɗaya, sannan na motsa guda 4-40 a cikin ƙugiya na kebul ɗin bayan kinky saukar da kebul ɗin. a kusa da dunƙule kamar yadda aka gani a wannan hoton.

Ɗauki taron waya/ dunƙule taron da kuka yi yanzu, kuma sanya dunƙule cikin kusurwar mai haɗin SO-239. Yi wannan kowane kusurwoyi na mai haɗin SO-239. Lokacin da aka gama, ya kamata ya bayyana kamar hoton da aka jera a ƙasa. Tabbatar cewa igiyoyin suna fitowa daidai da wurin tashar SO-239, kamar a hoton da ke ƙasa.

Bayan haka kuna buƙatar siyar da madaidaiciyar sigar eriyar mita 2 Kayan aiki mai mahimmanci don wannan shine abin da ake magana da shi azaman Hannu na 3, ko hannun taimako. Ina tsammanin zaku iya samun su akan Amazon. Idan ba ku da ɗaya, ina ba da shawarar ku sami ɗaya. Suna da amfani sosai lokacin da kuke yin irin waɗannan maki kamar soldering.

Bayan an gama sayar da ku, adaftar eriyar ku ta mita 2 tana buƙatar kama da wannan:

Bayan haka, zazzage coax ta ɗayan ƙarshen bututun kuma tare da adaftan. Ina yin amfani da RG-8U coax akan eriya ta 2 mita, Ina ba da shawarar ku yi haka. Bayan haka, ɗauki 3/4 ″ THD Dome Cap da zamewa a ƙarshen adaftar SO-239, sannan kuma haɗa coax zuwa eriya kamar a hoton da aka jera a ƙasa:

Kamar yadda kake gani, tun da na yi amfani da adaftar PVC nau'in dunƙule, yana da sauqi ka mayar da shi baya ga sabis na eriya idan an buƙata.

Bayan an haɗa eriyar tsaye ta mita 2 tare, sassauta radials ƙasa matakan 45. A halin yanzu lokaci ya yi da za a yanke shi cikin rukunin rediyo mai son mita 2. Don yin wannan, na yi amfani da abokin aikina don riƙe eriya a matsayi. A gare ni, na yi niyyar kunna eriya don tsakiyar rukunin mita 2. Gabaɗaya akwai isasshen ƙarfin watsawa don eriya ta rufe kusan duka band ɗin mita 2.

Don ƙididdige girman sashin madaidaiciyar eriya, yi amfani da madaidaicin tsari:

Girman (a.) = 2808/F.

F=146mHz.

Idan kuna son eriyar ku ta mita 2 ta yi sauti a mitoci daban-daban, bayan haka yi amfani da dabarar da ke sama daidai da haka. A gare ni tsawon da nake so shine 19.25 ″ don haka na sanya bangaren tsaye ya dan fi tsayi. Wannan yana ba ni damar kunna shi tare da gadar SWR.

Ga radials, kana so su zama 5% ya fi tsayi fiye da bangaren tsaye, don haka a gare ni, za su zama 20.25 inci. Don haka sai na yanke nawa zuwa 20.5 in. Daga baya na ɗauki nau'i biyu na ƙugiya na ɗan ƙarami bayan kammalawa. kowane radial. Wannan zai ba da kariya ta ido idan mutum ya sami bugun cikin ido. (sosai kadan ko! don haka a kula!!).

Lokacin da aka kunna eriyar ku ta madaidaiciyar mita 2, yana buƙatar a rufe yanayi tare da silinda mai siliki. Kada ku yi shakka game da sanya shi. A wannan yanayin, ƙarin ya fi kyau! Tabbatar cewa yana rufe madaidaicin bangaren a haɗin gwiwa na solder da ko'ina cikin saman adaftar SO-239, tare da sukurori waɗanda ke riƙe da radials akan. Hakanan tabbatar da kasan tashar SO-239 da kuma bututun PVC an rufe shi gaba ɗaya.

Na yi matukar farin ciki da sakamakon sabuwar eriya ta mai tsayin mita 2. A halin yanzu zan iya dacewa da dacewa da dama daga cikin masu maimaita mita 2 na yanki a cikin wurin.