Adjacent Channel Power Calculator

Calculate Adjacent Channel Power



Formula

To calculate the adjacent channel power:

\[ P_{\text{adj}} = P_{\text{total}} - 10 \log_{10}(\text{BW}) \]

Where:

What is Adjacent Channel Power?

Adjacent channel power (ACP) is a measure of the power that leaks into adjacent frequency channels from a transmitter. This leakage can cause interference with other communications and is an important parameter in wireless communication systems. ACP is typically measured in decibels relative to the carrier power (dBc) or in absolute terms (dBm). It is crucial for ensuring that a transmitter does not interfere with neighboring channels, thereby maintaining the integrity and quality of the communication system.

Example Calculation 1

Let's assume the following values:

Using the formula:

\[ P_{\text{adj}} = 30 - 10 \log_{10}(10) = 30 - 10 = 20 \approx 2.000 \times 10^{1} \text{ dBm} \]

The Adjacent Channel Power (\(P_{\text{adj}}\)) is \(2.000 \times 10^{1}\) dBm.

Example Calculation 2

Let's assume the following values:

Using the formula:

\[ P_{\text{adj}} = 50 - 10 \log_{10}(25) = 50 - 13.98 = 36.02 \approx 3.602 \times 10^{1} \text{ dBm} \]

The Adjacent Channel Power (\(P_{\text{adj}}\)) is \(3.602 \times 10^{1}\) dBm.