What is the significance of Carrier to Noise Ratio?
High CNR values provide good quality of reception, for example, low bit error rate (BER) of a digital message signal, or high signal-to-noise ratio (SNR) of an analog message signal. The quality of the received signal determines the data rate, the coverage area, and the capacity of the system. A low CNR can result in poor call quality, dropped calls, and slow data rates. CNR is often used in calculating link budget, and it describes the clarity of the signal.
How to Calculate Carrier to Noise Ratio?
Carrier to Noise Ratio calculator uses Carrier to Noise Ratio = Carrier Power/(The Relative Intensity Noise (RIN) power+Shot Noise Power+Thermal Noise Power) to calculate the Carrier to Noise Ratio, Carrier to Noise Ratio is defined as the ratio of the received modulated carrier signal power to the received noise power after the receiver filters. When both carrier and noise are measured across the same impedance, this ratio can equivalently be given as the ratio of the root mean square (RMS) voltage levels of the carrier signal and noise respectively. Carrier to Noise Ratio is denoted by CNR symbol.
How to calculate Carrier to Noise Ratio using this online calculator? To use this online calculator for Carrier to Noise Ratio, enter Carrier Power (P_{car}), The Relative Intensity Noise (RIN) power (P_{rin}), Shot Noise Power (P_{shot}) & Thermal Noise Power (P_{the}) and hit the calculate button. Here is how the Carrier to Noise Ratio calculation can be explained with given input values -> 11.68831 = 9E-07/(1.2E-08+1.4E-08+5.1E-08).