1) The received power at an airplane is calculated as Pr = -43 dBm at a range of 13 miles using free-space propagation. Determine the received power (in dBm) at a range of 52 miles

2) True/False — Free space propagation is governed by an inverse fourth law in distance: -12 dB / octave or -40 dB / decade.

3) Why is the maximum power density limit in the radiated EM power density safety standard reduced to 1 mW/cm^2 over the 30 MHz — 300 MHz frequency band?

Community Answer

Here I am uploading the solution if you have any doubt you can leave the comment and .as per chegg guidelines at a time i can solve only one problem Q 1) Received power (rho_(k_(1)))=-43dBm at Range (d_(1))=13 miles. at Reng (d_(2))=52 miles, R_(2)= ?The relationbiw Received ... See the full answer