Ngophuhliso oluqhubekayo lweshishini le-wholesale, ixabiso elivulekileyo kunye namava asimahla kuye kwaba yindlela yokuthenga ethandwa ngabantu.Nangona kunjalo, ngelixa abarhwebi bebonelela abathengi ngolwazi olufanelekileyo lokuthenga, ukhuseleko lwemveliso lukwangumbandela obalulekileyo ophazamisa abathengisi.Ngenxa yendawo yokuthenga epheleleyo kunye nevulekileyo, ukulahlekelwa kwempahla akunakuphepheka.Ngokukodwa, ezinye iimveliso ezincinci kunye nezisulungekileyo zihlala zingenaxabiso eliphantsi.

Xa sijamelene nale ngxaki inameva, simele sinikele ingqalelo kuyo size sisingathe ngendlela efanelekileyo.Ukuba ayiphathwa, iya kuchaphazela ngokuthe ngqo ukusinda kwevenkile.Ngaba ivakalelwa kukubaxwa?Enyanisweni, ayibaxwa.Kwimveliso enye, kufuneka uthengise ezintathu okanye ngaphezulu ukuze uhlawule ilahleko.

Ukujongana nale ngxaki, into yokuqala abarhwebi abadla ngokuyicinga kukufaka ukubeka iliso, kodwa ukubeka iliso kuphela isixhobo sokufumana iingxaki emva koko, kwaye ayikwazi ukuqhutyelwa phambili ngexesha.Kuba emva kwayo yonke loo nto, akukho nto ingako yabasebenzi kunye namandla okuhlala ujonge kwiscreen sokubeka iliso ukubona ukuba ngowuphi umthengi onengxaki.Inokukhangela kuphela emva koko, kodwa iimpahla zilahlekile ngeli xesha.

Isisombululo sangoku kukufakela inkqubo yokubona imveliso ye-EAS yemveliso.Le mveliso ithatha ixesha.Ukuba nayiphi na imveliso engazinzanga idlula kumjelo wokukhangela umnyango, inokwaziswa ngexesha lokukhumbuza umthengisi wevenkile.

Okwangoku, kukho iintlobo ezimbini zeengcango ezichasene nobusela ezisetyenziswa kakhulu kwimarike.Enye yi-8.2Mhz (eyaziwa ngokuba yi-RF SYSTEM), kwaye enye yi-58khz (AM SYSTEM).Ke yeyiphi i-frequency engcono?Indlela yokukhetha?

1. Kwinqanaba lobugcisa, uninzi lwamasango eRF okwangoku asebenzisa imiqondiso elinganisayo, ngelixa amasango e-AM asebenzisa itekhnoloji yothumelo lwedijithali.Ke ngoko, amasango e-AM achaneke ngakumbi ekuqapheliseni umqondiso, kwaye izixhobo azikwazi ukuphazamiseka kwezinye iimpawu ezingahambelaniyo.Uzinzo lwezixhobo lungcono.

2. Khangela ububanzi betshaneli, ukugcinwa okusebenzayo kwangoku kocango lweRF yileyibhile ethambileyo eyi-90cm-120cm 120-200cm, i-AM yokubona ucango lwexesha elithambileyo 110-180cm, ileyibhile enzima 140-280cm, ngokuthelekisa, i-AM. ubhaqo locango Isithuba kufuneka sibe banzi, kwaye ufakelo lwevenkile yokuthenga luziva lubanzi.

3. Iindidi zababoneleli besondlo.Ngenxa yomgaqo-nkqubo weRF, iithegi zeRF ziphazamiseka ngokulula kwaye zikhuselwe ngumzimba womntu, ifoyile yenkcenkce, isinyithi kunye nezinye iimpawu, okukhokelela ekusileleni ukwenza imisebenzi yokulondoloza kwimveliso yolu hlobo lwemathiriyeli.Ngokwentelekiso, izixhobo zingcono kakhulu, nakwimveliso eyenziwe ngefoyile yentsimbi kunye nezinye izinto, zinokudlala indima ekuthinteleni ubusela.

4. Ngokwexabiso, ngenxa yokusetyenziswa kwangaphambili kwezixhobo zeRF, ixabiso lingaphantsi kwelo lezixhobo ze-AM.Nangona kunjalo, ngophuculo oluqhubekayo kunye nophuhliso olukhawulezayo lwezixhobo ze-AM kwiminyaka yamuva nje, iindleko ziye zancipha ngokuthe ngcembe, kwaye i-gap yangoku yexabiso phakathi kwezixhobo ezibini iyancipha ngokuthe ngcembe.

5.Isiphumo sokubonisa ukubonakala kunye nezinto eziphathekayo.Ngenxa yeengxaki ezithile zezixhobo zeRF, bambalwa nabambalwa abavelisi abatyala imali kuphando nophuhliso lwezixhobo zeRF.Isixhobo se-RF sinendawo encinane yophuhliso kunezixhobo ze-AM malunga nokuveliswa kwezinto ezintsha okanye uphando kunye nophuhliso.