Vim hais tias raws li kev cai, cov tsev thiab lawv cov chaw yuav tsum yog 45 meters saum av thiab 105 meters hauv qab av. Qhov nruab nrab siv hom B aviation obstruction teeb yog lub teeb liab. Lub flash zaus yuav tsum nyob nruab nrab ntawm 20-60 zaug ib feeb, thiab lub teeb siv tau zoo yog 2000cd ± 25%.
Siv nruab nrab-siv A-hom aviation obstruction teeb ntawm 105 meters saum av thiab hauv qab 150 meters; dawb flashing, siv lub teeb pom kev zoo (2000-20000cd) ± 25%.
Nyob rau hauv cov tsev thiab cov chaw siab tshaj 150 meters los ntawm hauv av, siv lub teeb ci ntsa iab siab thiab yuav tsum yog lub teeb ci dawb. Lub flash zaus yuav tsum nyob nruab nrab ntawm 40-60 zaug ib feeb. Lub teeb siv tau zoo nyob ntawm qhov ci ntsa iab tom qab (2000-200000cd), txhua qhov huab cua Ua haujlwm 24 teev.
Nyob rau hauv txoj kev no, tus neeg tsav tsheb tuaj yeem txiav txim siab qhov siab ntawm lub tsev siab siab hauv av raws li xim thiab zaus ntawm lub teeb, uas tuaj yeem zam tau zoo thiab tsis txhob sib tsoo.
Piv txwv li, ntxiv rau cov teeb pom kev liab liab ntawm lub sijhawm tsis tu ncua nyob ib puag ncig tus pej thuam lub cev, flashing aviation cov paib kuj tau teeb tsa rau saum lub TV ntauwd. Nws tawm 200,000 tswm ciab thaum nruab hnub, 100,000 tswm ciab thaum yav tsaus ntuj, thiab 2,000 tswm ciab hauv qhov tsaus ntuj. Nws raug tswj los ntawm photoelectric nyob rau hauv peb theem. Nyob rau tib lub sijhawm, nws flashes ntawm 40 zaug hauv ib feeb, uas tshwj xeeb yog qhov muag pom kom nce qhov siab ntawm tus tsav' lub tsev. Yog li ntawd, nws yog ib qho tseem ceeb heev rau nruab aviation obstruction teeb nyob rau hauv high-sawv vaj tse.