![]() |
|
|
Thread Tools | Display Modes |
#1
|
|||
|
|||
![]()
the ECHELON system
P37 United States spy satellites, designed to intercept communications from orbit above the earth, are also likely to be connected into the ECHELON system. These satellites either move in orbits that criss-cross the earth or, like the Intelsats, sit above the Equator in geostationary orbit. They have antennae that can scoop up very large quantities of radio communications from the areas below. A final element of the ECHELON system are facilities that tap directly into land-based telecommunications systems, completing a near total coverage of the world's communications. The microwave networks are made up of chains of microwave towers relaying messages from hilltop to hilltop (always within line of sight) across the countryside. These networks shunt large quantities of communications across a country. Intercepting them gives access to international underseas communications (once they surface) and to international communication trunk lines across continents. They are also an obvious target for large-scale interception of domestic communications. Of course, when the microwave route is across one of the UKUSA countries' territory it is much easier to arrange interception. P41 The ECHELON system has created an awesome spying capacity for the United States, allowing it to monitor continuously most of the world's communications. It is an important component of its |
Thread Tools | |
Display Modes | |
|
|
![]() |
||||
Thread | Thread Starter | Forum | Replies | Last Post |
ASTRO: 2007_Calendar (A3-Landscape)approx 12.8meg +PARs - File 01 of 19 - 2007_Calendar (A3-Landscape)-IDX.jpg (1/1) | Joseph Schmosovich | Astro Pictures | 3 | February 4th 07 07:45 PM |
ASTRO: 2007_Calendar (A3-Landscape)approx 12.8meg +PARs - File 03 of 19 - 2007_Calendar (A3-Landscape).part01.rar (2/2) | Jonathan Silverlight | Astro Pictures | 2 | January 24th 07 11:55 AM |
ASTRO: 2007_Calendar (A3-Landscape)approx 12.8meg +PARs - File 16 of 19 - 2007_Calendar (A3-Landscape).vol0+1.PAR2 (1/1) | Joseph Schmosovich | Astro Pictures | 0 | January 24th 07 02:03 AM |
ASTRO: 2007_Calendar (A3-Landscape)approx 12.8meg +PARs - File 02 of 19 - 2007_Calendar (A3-Landscape).par2 (1/1) | Joseph Schmosovich | Astro Pictures | 0 | January 24th 07 02:01 AM |
Intelligent Design or Cosmic Landscape? | G=EMC^2 Glazier | Misc | 1 | January 20th 06 01:14 AM |