hat
Pou egzanp, NOKIA7 / 8 英寸 ba kab, 900MHz β koyefisyan diminisyon = 4.1dB / 100m, ki ka ekri tankou β = 3dB / 73m, se sa ki, pouvwa a siyal nan 900MHz, yo chak nan sa a 73m longè kab , Pouvwa a nan mwens pase mwatye.
eng
For example, NOKIA7 / 8 英寸 low cable, 900MHz attenuation coefficient β = 4.1dB/100m, can be written as β = 3dB/73m, that is, the signal power at 900MHz, each through this cable length 73m , the power to less than half.