Re: What is the relation between Freq vs Distance AND BW v D
In a link budget communication link analysis distance is related to frequency and to the free-space path loss. Lower the frequency and smaller path loss, greater the distance.
Also from the link budget if you know the transmitted power, antenna gain, path loss, cable loss, etc, you can get the required receiver sensitivity for a specific SNR.
Receiver sensitivity is related to the bandwidth of the system. Narrower the bandwidth, better sensitivity.