| Questions for ELECTRONICS TECHNICIAN, VOLUME 03: COMMUNICATIONS SYSTEMS: Satellite Communications : Chapter : 3 |
| Rating | Question |   |
 | Satellite communications systems are very
important to the worldwide military communications
network for what two primary reasons ? |
| SATCOM links are UNAFFECTED by the
propagation problems associated with hf radio
communications. |
| SATCOM links are FREE from the high attenuation
problems of facilities that use wire
or cable for routing communications. |
| SATCOM frequencies are only HIGHLY affected
by atmospheric phenomena and do not depend on
reflection or refraction. |
| What are the main limitations to a satellite
communications system ? |
| FLTSATCOM links provide worldwide coverage
between what latitudes ? |
| Navy SATCOM system consists of
information exchange subsystems that use the
satellites as . . . |
| What two installations form a
communications network for transmitting
general-service message traffic between ships
and shore installations. |
| UHF subsystem that links voice communications
between ships and connects with wide-area
shore voice networks |
| This subsystem is specifically designed for
special intelligence communications. |
| This is a one-way broadcast of tactical information from command centers ashore to afloat units primarily in support of over-the-horizon targeting. |
| This subsystem continues to provide inter-and intrabattle
group communications and is now also designated as the return path for ship-to-shore OTH-T communications. |
| This subsystem was designed to multiplex several subsystems, or users, on one satellite channel, allowing more satellite circuits to use a single uhf satellite channel. |
| The FLTSATCOM satellites have how many RF channels
allocated for Fleet Satellite Broadcast message traffic. |
| FLEET BROADCAST subscribers receive the UHF downlink signal through what receiver system, which
demodulates and demultiplexes the signal. |
| The uhf DAMA subsystem was developed to
multiplex several baseband systems or users on one satellite channelat what frequency ? |
| The uhf DAMA subsystem was developed to
multiplex several baseband systems or users on one
satellite channel at what frequency ? |
| The DAMA multiplexed data stream is divided into
frames, with each frame being how long ? |
| FLTSATCOM satellites can relay
communications on how many separate uhf channels ? |
