What technique allows a common group of timeslots to be used on different operating selectable nets?

The technique that allows a common group of timeslots to be used on different operating selectable nets is Dedicated Timeslot Reuse. This method enables the efficient allocation of frequencies within a communication network, especially in environments where multiple operations must occur simultaneously without interference.

Dedicated Timeslot Reuse works by assigning specific timeslots for designated purposes across various selectable nets, ensuring that different operating units can share the same communication resources. This approach optimizes the use of available frequencies and minimizes the likelihood of signal overlap, which can lead to communication failures or degradation.

In contrast, the other options do not specifically address the concept of reusing timeslots across different nets. While Multi-nets and Timeslot Reallocation focus on the structure and management of communication nets and their timeslots, they do not inherently incorporate the aspect of utilizing a common group of timeslots across separate operational nets. Contention access relates to how devices compete for shared resources, rather than the strategic reuse of timeslots in a dedicated manner.

Overall, the ability to use a shared group of timeslots effectively across different nets is crucial for maintaining clear and organized communication in joint operations, particularly when operating under the Link-16 framework.