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39 Cards in this Set

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  • Back
How many NPGs are there total?

512
What frequency does JTIDS operation over?

960-1,215MHz
What is TDMA?

Time division multiple access

How is Link 16 primarily coded?
J-Series messages which are binary data words
J-series data words are grouped into what?


"Functional areas" and allocated into network participation groups



How many frequencies does link 16 operate on?

51
How many epochs are in 1 day?

112.5- 12.8 minutes each
How many frames has is in an epoch?

64 - 12 seconds each
How many timeslots can you find in a frame?

1536 timeslots
How many timeslots are in a second?

128
How many networks can be "stacked" on top of each other?

127
NPG 2

RTT-A (dedicated) - RTT messages are exchanged between JTIDS/MIDS terminals on this NPG, called addressed RTT, to support fine synchronization.

NPG 3


RTT-B (Contention) called broadcast performs the same function as NPG 2, but it's timeslots are shared by a group of JUs in which all units can transmit.



NPG 4

Network Management -

NPG 5

PPLI and status A

NPG 6

PPLI and status B
NPG 7

Surveillance
NPG 8

Mission Management and Weapons Coordination
NPG 9

Air Control
NPG 10

EW

NPG 11

Imagery
NPG 12

Voice Group A
NPG 13

Voice Group B
NPG 19

Fighter-to-fighter Net 1
NPG 20

Fighter-to-fighter Net 2
NPG 21
BMD Operations

NPG 29

Residual Message
Dedicated Access
The assignment of time slots to a uniquely identified unit for transmission purposes is known as...



What is known as the assignment of time slots to a group of units as a pool for transmission purposes?


Contention Access
In ___________, each unit randomly selects a time slot from the pool during which to transmit.


contention access



This is an access mode that allows the network capacity of an NPG to be assigned dynamically, based on the projected needs of its participants.

Time slot reallocation

This is intended to support a fluctuation demand from a varying group of users.

TSR

____ allows network capacity to be distributed where it is needed, by periodically allocating time slots from a pool to each participant, based on need.

TSR

How is NPG capacity assigned?
It is assigned by specifying time slot blocks and access modes for each participating JU.
Network roles are functions assigned to a ___, either by initialization or by operator entry.
JU
The most essential role in establishing the Link 16 system time reference network (STRN) is that of Network is that of ______ _____ ______.

NTR
System time is propagated to all other units by mean of ____________________ that are transmitted by the NTR.

The Initial entry J0.0 messages
All JU's, except the _____, are referred to as Primary Users (PRUs) if they routinely transmit RTT messages to achieve and maintain fine synchronization with the network.

NTR