Download JTIDS 201 Test 2: Questions and Answers with Complete Solutions and more Exams Advanced Education in PDF only on Docsity!
JTIDS 201 Test 2 With
Complete Solution
MTA various types of platforms - ANSWER Command, Control/Sensor, Shooter
Types of link 16 connectivity - ANSWER LOS, ELOS (RELAY), BLOS
What is important to remember about the IEM? - ANSWER the IEM (J0.0) is transmitted on time slot A-0 on every
network. It is possible to inadvertently synchronizing into the wrong
network.
Two ways to separate RF zones - ANSWER Geographic, Crypto
RF Synchronization plan - ANSWER STRN, ETRN
STRN - ANSWER In a STRN, JTIDS/MIDS time is set by the NTR. The NTR will typically reference a commonly known time standard, such as ZULU/UTC, but once that time is set in the NTR's terminal, it will drift and over time may not be the same as the original reference time. A STRN has one NTR, and multiple JU/IEJU/SUs.
ETRN - ANSWER In an ETRN, the Global Positioning Satellite (GPS) constellation provides the timing source for the JTIDS/MIDS network. ETRN must be started by an NTRE, but after the network is operational may have multiple, or no, NTREs
Various surveillance access types - ANSWER Dedicated Access, Surveillance Option, TSR, Dedicated Time Slot Reuse
Dedicated Access - ANSWER Specific surveillance time slots are assigned to specific platforms
Surveillance Options - ANSWER Allows the overall surveillance capacity to be divided among
multiple platforms.
TSR - ANSWER Similar to surveillance options, but the platforms request a
percentage of the pool of time slots based on demand
Dedicated Time Slot Reuse - ANSWER A technique that assigns identical platform IDLs to more than one
platform.
General parameters for L16 - ANSWER Crypto, Transmission Mode, Stacked Nets, Relative Navigation,
JTIDS two range modes - ANSWER Normal (300) and Extended (500)
Stacked Nets - ANSWER NPG 9 (Air Control, Assigned to C2 unit), NPG 12/13(J Voice), NPG 19/20 (Fighter to Fighter, Pseudo Stacked), NPG 11 (Imagery Pseudo Stacked),NPG 18 (NEW Pseudo Stacked)
RELNAV - ANSWER JTIDS RELNAV is the best source
of accurate navigational information in an environment suffering GPS
degradation or denial.
Geo Grid - ANSWER 15.5.8.1.1 Geodetic Grid
Pseudo Stacked Net - ANSWER Sometimes, network designers will assign a net number to
selected NPGs with the understanding that the operator can
change the net number as needed or required
Multi Nets - ANSWER JTIDS/MIDS provides for multi-net operations in which two or
more JUs can transmit in the same time slot on different nets to
increase communications capacity
Duty code 813 - ANSWER MIDS Relay Unit MRLYU
IER Validation needs - ANSWER Transmitting platform, Receiving Platform, Relaying Platform ,NPG/Slot Block
Three option for JTIDS/MIDS Network - ANSWER Select an existing Network, Modify Existing Network, Request a New Network
Modify Existing Network - ANSWER Platform substitutions, Surveillance Option Sequence Reallocations
Link 16 Network Selection parameters - ANSWER IERs, Operational Environment (Think peace time and Wartime factors), Geographic Area and LOS, Types and quantities of participants, Locations and operating areas (can be found in ACO or OPORD), Gateways (have enough track capacity), Adjacent Link 16 Operations (might need DE confliction), Frequency Remapping IDLs ( 51 Freqs 14 taken away by FAA)
Network Request Form - ANSWER Found in JMTOP
Controlling platform and gateway must be on what NPG? - ANSWER NPG 9
3 types of SADL - ANSWER Air-Air, Air-Ground, Gateway
Air-Air requires - ANSWER Net Shape, Air Key, Frequency Map
SADL Gateway requires - ANSWER Gateway Key, Terminal filter setting, Frequency Map
Air-Ground requires - ANSWER Ground Key, Freq Map, Brigade battalion Logical channel number
Frequency Map - ANSWER Represents the SADL hop set
SADL Freq - ANSWER 420-450MHZ(
Coord with JTF Freq manager to obtaing freq restrictions)
3 SADL keys - ANSWER TSK, KEK, Crypto modernization. (TSK,KEK required to make terminal operational for both MSEK and TSEC)
A 2.2 to a SADL gateway is forwarded as what? - ANSWER 2.
1 SADL track takes up how many time slots? - ANSWER 4 (16 track capacity)
Link 11 track IDs - ANSWER Pending, Unknown, Assumed Friend, Friend, Hostile
LINK 11 Rates - ANSWER Fast 13/9, Slow 22/
Link 11 can be transmitted at what BPS? - ANSWER 600,1200,2400,4800,
Factors that increase NCT time - ANSWER Number of PUs, Tactical Data Load (time to transmit data),Communication quality (Polling takes 1 sec if unit doesn't respond DNCS polls again causing another 1 second delay),
Link 11 communication paths - ANSWER HF ( 2-30MHz sun up Freq up Sun down Freq down) UHF (225-400 MHz) Simulcast, Multi Frequency link,
Picket - ANSWER A PU in the picket mode responds to interrogation by the DNCS
PU - ANSWER A unit communicating directly on Link 11
FPU - ANSWER A PU that is forwarding data between Link 11 and one or more RUs
FJUA - ANSWER A JU communicating on both Link 11 and Link 16 while forwarding information between Link 11 and Link 16 participants.
FJUAB - ANSWER A JU communicating on Link 16, Link 11, and Link 11B while forwarding information among Link 16, Link 11, and Link 11B participants.
RU - ANSWER A unit communicating directly on Link 11B.
FRU - ANSWER An RU that is forwarding data between two or more RUs.
FJUB - ANSWER A JU communicating on both Link 11B and Link 16 while
forwarding information between Link 11B and Link 16 participants.
FJUAB - ANSWER A JU communicating on Link 16, Link 11, and Link 11B while forwarding information among Link 16, Link 11, and Link 11B participants.
FPU - ANSWER A PU that is forwarding data between Link 11 and one or more RUs
Link 11 Encryption devices - ANSWER KG-40A - working in A1, A2, B, and PT SG-40/50 for coalition
Link 11 B Encryption device - ANSWER KG-84, KIV-7, STE/STU
What is 1 important consideration when dealing with foreign entities? - ANSWER Crypto planning and selection
What is unique about dealing with NATO Link-1? - ANSWER unencrypted, produces air tracks and strobes
What kind of filtering should normally be used with NATO Link-1? - ANSWER SPI or physical
TSR max percent - ANSWER 60 Percent
What do you need to calculate TSDF - ANSWER Platform TSDF, Relay usage, Voice usage
Patriot ICC Track numbers - ANSWER 200 Octal 128 Decimal- Low 1038 octal 539 decimal-High
What is time slot allocation? - ANSWER The process of programming a network or terminal
NPG - ANSWER NPGs support the exchange of specific J-Series messages and support a specific mission function.
Slot Group - ANSWER a slot group is a single column in the connectivity matrix. Slot Groups are made up of one or more "slot blocks" and show specific connectivity between participants.
Slot Block - ANSWER Slot Blocks are the basic unit of terminal initialization or programming.
Slot blocks are time slots (one or more) that are organized as powers of two
(2N).
Time Slots - ANSWER Time Slots are the basic unit of access. Access means a transmit or receive
assignment. Another way to express access is "information exchange
Recurrence Rate - ANSWER Recurrence Rate
Time Slots Per Frame
15 512
14 256
13 128
12 64
11 32
10 16
9 8
8 4
7 2
6 1
How many slot blocks can a JTIDS mids terminal hold? - ANSWER 64 slot blocks
- NON C2 IU - ANSWER 00200-
- psuedo Source Address - ANSWER
- Collective Address - ANSWER
- Link 16 Manager - ANSWER
- IU you cant use - ANSWER 00077,00176,00177,
- Forwarder TB - ANSWER 07776 or less same if you are operating link
