XPost: sci.military.moderated   
   From: dirk@neopax.com   
      
   Andrew Swallow wrote:   
      
   > "Derek Lyons"  wrote in message   
   > news:40a86814.1094728@supernews.seanet.com...   
   >   
   >>"Andrew Swallow"  wrote:   
   >>   
   >>   
   >>>"Dirk Bruere at Neopax"  wrote in message   
   >>>news:2ghlr8F2lhr0U3@uni-berlin.de...   
   >>>   
   >>>>Andrew Swallow wrote:   
   >>>>   
   >>>>>Since communication satellites have not been attacked   
   >>>>>by the military, terrorists or blackmailers neither they   
   >>>>>nor their insurance companies think it is worthwhile.   
   >>>>   
   >>>>Yet.   
   >>>>   
   >>>   
   >>>I have just remembered there is an example of military   
   >>>jamming of satellite communications.  John Simpson   
   >>>of the BBC reported that his satellite phone from Baghdad   
   >>>to London stopped working during air raids.  This was in   
   >>>1991 during the first Gulf War.  The BBC will have recordings   
   >>>and he may have mentioned it in one of his books.   
   >>   
   >>Sorry, but a phone ceasing to work is not prima facie evidence of   
   >>jamming.  The phone can be cut off in a variety of ways *without*   
   >>military interference.   
   >>   
   >   
   > Since John Simpson was sat on the top of a   
   > building at the time next to the equipment's aerial,   
   > it transmits straight to the satellite, it does not   
   > use the civilian phone network, the lights show the   
   > power was on, it repeatedly stopped working during air   
   > raids and started working when the aircraft leave   
   > there are not many alternatives to jamming that   
   > fit the facts.   
      
   But that does not tell us which ends was being jammed.   
   It could be that Baghdad was being saturated by EW signals, some of which   
   'leaked' into Simpsons equipment.   
      
   --   
   Dirk   
      
   The Consensus:-   
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