Uhlelo lwaphansi luwuhlelo lokulwa nokweba olugqitshwa phansi futhi alukwazi ukubonwa amakhasimende.Ngaphezu kwalokho, isistimu yaphansi efihliwe empeleni iwuhlobo lwesistimu yokulwa nobugebengu ye-AM, futhi imvamisa esetshenziswayo nayo ingu-58KHz.Ngaphezu kwalokho, isistimu yaphansi ingenye yemisebenzi yokuhlonza engcono ohlelweni lwe-EAS, enezinga eliphezulu lokuthola umsebenzi kanye nomsebenzi ozinzile.

Izinzuzo zesistimu yephansi:

1. Izinga lokutholwa kanye nokuvimbela ukuphazamiseka kunamandla kunemishini evamile ye-AM, futhi umsebenzi muhle kakhulu.Idivayisi yaphansi efihliwe ayinayo inkinga nomaka wokuvikela, futhi izinga lokutholwa kwayo ngokuvamile lingafinyelela ngaphezu kuka-99%.

2. Kungcwatshwe phansi kufihlwe ngaphansi, futhi amakhasimende awaboni emnyango.Ezinye izitolo azilindele ukuthi amakhasimende abone izinti ezime mpo ezilwa nokwebiwa ngenxa yokuklanywa kwendawo yezitolo nokuma kwemikhiqizo esezingeni eliphezulu, futhi le nkinga ingaxazululeka ngokuyigqiba phansi.

3. Uhlelo lwaphansi lwakhiwe izingxenye ezimbili, inkosi kanye nekhoyili.Inkosi ifakwe ophahleni, futhi ikhoyili igqitshwe phansi;uma ithegi idlula, ikhoyili izoyizwa bese iyidlulisela kumphathi, umniniyo uzokhala.

4. Ukudlidliza okulwa nokweba kunamandla.Amasela avamile azobona ukuthi ayikho i-antenna ye-EAS efakwe emnyango wesitolo, futhi umaka wokulwa nobugebengu ufihliwe ngokuqhathaniswa, bazongena ngesibindi esitolo ukuze bantshontshe izinto, kodwa uma isitolo sifakwe ngedivayisi yaphansi, isela liyokwembulwa emnyango, abangaphansi komhlaba bayokhala i-alamu, khona-ke unogada uzovimba isela.Lolu hlobo lokulwa nokweba olungabonakali lushaqisa kakhulu amasela, luphinde luvumele nabanye abantu abanenhloso yokweba ukuthi bayeke ukweba.