Which of the following IS NOT true about the Link 16 information assurance feature known as double pulse transmissions?

The assertion that Link 16's double pulse transmissions increase data throughput is not accurate. Double pulse transmissions are primarily a method designed to enhance the reliability and robustness of data communication in an electronic warfare environment, especially where jamming or interference may occur.

The main function of double pulse transmissions is to provide redundant information. In this scenario, the receiving terminal decodes the redundant data as it would with normal transmissions, ensuring that even if some data is lost due to jamming, the redundancy can still allow for successful communication. While these features do improve the resilience of the communication against disruptions, they do not inherently increase the overall data throughput; rather, they may actually slow it down because the system needs to transmit the same data multiple times to ensure reliability.

Additionally, the use of double pulse transmissions does require more bandwidth since it involves sending multiple signals for the same set of information, which further affirms that the purpose of this feature aligns more with reliability than efficiency in terms of data throughput.