Ngokuthuthuka okuqhubekayo komkhakha we-wholesale, intengo evulekile nolwazi lwamahhala kuye kwaba indlela yokuthenga ethandwa abantu.Kodwa-ke, nakuba abathengisi behlinzeka amakhasimende ngalesi senzo esikahle sokuthenga, ukuphepha komkhiqizo nakho kuyindaba ebalulekile ephazamisa abathengisi.Ngenxa yendawo yokuthenga ephelele nevulekile, ukulahlekelwa kwezimpahla akunakugwenywa.Ikakhulukazi, eminye imikhiqizo emincane necolisisiwe ngokuvamile ayinayo inani eliphansi.

Njengoba sibhekene nale nkinga enameva, kumelwe siyinake futhi sisingathe ngendlela efanele.Uma ingaphathwa, izothinta ngqo ukusinda kwesitolo.Ingabe kuzwakala kunehaba?Eqinisweni, akulona ihaba.Ngomkhiqizo owodwa, udinga ukuthengisa emithathu noma ngaphezulu ukuze ubuyisele ukulahlekelwa.

Ukubhekana nale nkinga, into yokuqala abathengisi abavame ukucabanga ngayo ukufaka ukuqapha, kodwa ukuqapha kuyithuluzi kuphela lokuthola izinkinga ngemva kwalokho, futhi akukwazi ukucutshungulwa ngesikhathi.Ngoba phela, awekho amandla amaningi kanye namandla okuhlala ugqolozele isikrini sokuqapha ukuze ubone ukuthi yiliphi ikhasimende elinenkinga.Ingaseshwa kuphela ngemva kwalokho, kodwa izimpahla zilahlekile ngalesi sikhathi.

Isixazululo samanje ukufaka isistimu yokubona ngogesi yomkhiqizo we-EAS.Lo mkhiqizo uzwela isikhathi.Uma noma yimuphi umkhiqizo ongakalungiswa udlula kumzila wokutholwa komnyango, ungaxwayiswa kusenesikhathi ukuze ukhumbuze umthengisi wesitolo.

Njengamanje, kunezinhlobo ezimbili zeminyango yokulwa nokwebiwa kwezitolo ezinkulu ezisetshenziswa kakhulu emakethe.Enye ifrikhwensi engu-8.2Mhz (evame ukwaziwa ngokuthi I-RF SYSTEM), kanti enye i-58khz (AM SYSTEM).Ngakho iyiphi i-frequency engcono?Indlela yokukhetha?

1. Ezingeni lobuchwepheshe, iningi lamasango e-RF njengamanje asebenzisa amasiginali alingisa, kuyilapho amasango e-AM asebenzisa ubuchwepheshe bokudlulisa idijithali.Ngakho-ke, amasango e-AM anembe kakhulu ekubonweni kwesignali, futhi okokusebenza akukwazi ukuphazanyiswa kwezinye izimpawu ezingahlobene.Ukuzinza kwezisetshenziswa kungcono.

2. Thola ububanzi besiteshi, ukunakekelwa okusebenzayo kwamanje komnyango we-RF ilebula ethambile engu-90cm-120cm engu-120-200cm, ilebula ethambile yesikhawu sokuthola umnyango we-AM 110-180cm, ilebula eqinile engu-140-280cm, uma kuqhathaniswa, i-AM. ukutholwa komnyango Isikhawu kufanele sibe banzi, futhi ukufakwa kwenxanxathela yezitolo kuzwakale kubanzi.

3. Izinhlobo zabahlinzeki besondlo.Ngenxa yesimiso sokusebenza sohlelo lwe-RF, amathegi e-RF aphazanyiswa kalula futhi avikelwe umzimba womuntu, ucwecwe lwethayela, insimbi nezinye izimpawu, okuholela ekuhlulekeni ukwenza imisebenzi yokunakekela emikhiqizweni yalolu hlobo lwezinto.Uma kuqhathaniswa, izinto zokusebenza zingcono kakhulu, ngisho nasemikhiqizweni eyenziwe nge-tin foil nezinye izinto, zingabamba iqhaza ekuvimbeleni ukweba.

4. Ngokwenani, ngenxa yokusetshenziswa kwangaphambilini kwemishini ye-RF, intengo iphansi kunaleyo yemishini ye-AM.Kodwa-ke, ngokuthuthukiswa okuqhubekayo nokuthuthukiswa okusheshayo kwemishini ye-AM eminyakeni yamuva, izindleko ziye zehla kancane kancane, futhi igebe lamanje lentengo phakathi kwamathuluzi amabili liyancipha kancane kancane.

5.Umphumela wokubukeka nokubonakalayo.Ngenxa yezinkinga ezithile zemishini ye-RF, bambalwa nabakhiqizi abatshala imali ocwaningweni nasekuthuthukisweni kwemishini ye-RF.Imishini ye-RF inendawo encane yokuthuthukiswa kunemishini ye-AM mayelana nokuqanjwa kabusha komkhiqizo noma ucwaningo nokuthuthukiswa.