Question

Which JTIDS/MIDS access technique is not operator selectable and allows different groups of users to exchange information in different Network Participation Groups (NPGs)?

1) Time Division Multiple Access (TDMA)
2) Frequency Division Multiple Access (FDMA)
3) Code Division Multiple Access (CDMA)
4) Space Division Multiple Access (SDMA)

Answer 1

TDMA is the access technique used by JTIDS/MIDS that is not operator-selectable and allows communication within different NPGs.

Step-by-step explanation:

The Joint Tactical Information Distribution System (JTIDS) / Multifunctional Information Distribution System (MIDS) utilizes Time Division Multiple Access (TDMA) as its access technique. TDMA is not operator-selectable and allows different groups of users to communicate within different Network Participation Groups (NPGs). Unlike TDMA, Frequency Division Multiple Access (FDMA) and Code Division Multiple Access (CDMA) are based on frequency and code separation respectively, while Space Division Multiple Access (SDMA) is based on spatial separation of communication channels.