RF Signal to Noise
RF Signal to Noise Ratio Calculator
Calculate the Signal-to-Noise Ratio (SNR) to determine wireless signal quality and predict device connectivity issues.
Note: SNR is calculated as Signal - Noise. Higher values indicate better signal quality. A minimum SNR of 15-20 dB is recommended for reliable wireless connectivity.
📊 Results
Understanding Signal-to-Noise Ratio (SNR)
The Signal-to-Noise Ratio is a critical metric in wireless communications that measures the strength of the desired signal relative to background noise. It's calculated by subtracting the noise level from the signal strength (both in dBm).
SNR Quality Guidelines:
| SNR Range | Quality | Expected Performance |
|---|---|---|
| 40+ dB | Excellent | Maximum throughput, no packet loss |
| 25-40 dB | Very Good | High throughput, minimal issues |
| 15-25 dB | Good | Reliable connectivity, moderate throughput |
| 10-15 dB | Fair | Basic connectivity, possible packet loss |
| 5-10 dB | Poor | Unstable connection, frequent disconnects |
| < 5 dB | Very Poor | Unusable, connection failures |