Q15.3Multiple choice
A 1 KW signal is transmitted using a communication channel which provides attenuation at the rate of – 2dB per km. If the communication channel has a total length of 5 km, the power of P0 the signal received is [gain in dB = 10 log P ] i
- (a)900 W.
- (b)100 W.
- (c)990 W.
- (d)1010 W.