What is the resistance of PM carriers primarily associated with?

The resistance of PM carriers, or Phase Modulated carriers, is primarily associated with amplitude changes. In phase modulation, information is encoded in the phase of the carrier wave, but variations in amplitude can impact the overall signal integrity. When there are changes in amplitude, the performance of the phase modulation can be affected, leading to potential issues with the clarity and accuracy of the transmitted information. Therefore, understanding and managing amplitude changes is crucial for maintaining the fidelity of PM signals and ensuring effective transmission.

Other aspects, such as frequency shifts or noise interference, play roles in the broader context of signal transmission but do not specifically pertain to the resistance of PM carriers in the same way that amplitude changes do. Signal degradation can result from various factors, but it is not the primary association with the resistance of PM carriers.