Recent content by amgc63

Hi, a question: Construct a resonant dipole to receive 12MHz. Answer; λ = c/f = (3x10^8) / (12 x10^6) = 25m The dipole length λ/2 = 12.5m The length of each side dipole is 12.5m/2 = 6.25m Im confused, isn’t it the answer is 12.5m? Why require to divide 12.5m/2 again to get the answer...

Thank u so much. Now the “y” get into my head. 🙏

Thank you. Yes, but I just don’t understand y=1 Was given a question previously, Question; Given that a dipole antenna has directional gain of 2, calculate the power gain in Dbi? Answer; Power gain = 10 log (x/y), where y =1 Power gain = 10 log (2/1) = 3dbi I just don’t understand why y =1 Is...

Thanks. What if the question ask a directivity gain of 4? What is the power gain in dbi?? 10log(x/y) 10log (4/?) Still can’t get the “y” into my head. :(

Question; Given that a dipole antenna has directional gain of 2, calculate the power gain in Dbi? Answer; Power gain = 10 log (x/y), where y =1 Power gain = 10 log (2/1) = 3dbi My question is….how come y = 1?? Thanks in advance