Which two methods are effective for Link 16 network deconfliction?

Sufficient geographic separation is a fundamental method for Link 16 network deconfliction. By ensuring that different network participants are positioned far enough apart, the risk of signal interference is significantly reduced. This separation allows for a clearer communication path, as well as minimizing the potential for retransmission conflicts between units operating on the same or overlapping channels. When applied effectively, geographic separation helps maintain the integrity of communications and the efficiency of the network overall.

Employing a network time offset, for instance, is another effective strategy for deconfliction. While this might not have been chosen as an answer, it plays a critical role in synchronizing communication events and ensuring that transmissions do not overlap in time, thereby facilitating smoother operations.

Changing transmission power may not effectively resolve interference or network congestion issues, as it primarily affects the reach of a transmission rather than its compatibility with others sharing the network.

Using different encryption keys, while important for security and preventing unauthorized access, does not inherently address the frequency or timing conflicts that might arise within the network, which are critical for maintaining deconfliction during operations.