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Satellite to Satellite communication ?



 
 
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  #42  
Old December 12th 03, 12:52 AM
Ken Taylor
external usenet poster
 
Posts: n/a
Default Satellite to Satellite communication ?

"David Lesher" wrote in message
...
"Ken Taylor" writes:

Echo cancellation reduces echo, it doesn't do anything to delay except
potentially add to it. Delay doesn't show up as an echo - echo is due to
mismatches; delay is due to propagation delays, processing delays, and
similar time-wasters.



You need a thiotimoline injector to solve the delay issue.
--

Was that Heinlen or Asimov? :-)

Ken


  #43  
Old December 12th 03, 12:52 AM
Ken Taylor
external usenet poster
 
Posts: n/a
Default Satellite to Satellite communication ?

"David Lesher" wrote in message
...
"Ken Taylor" writes:

Echo cancellation reduces echo, it doesn't do anything to delay except
potentially add to it. Delay doesn't show up as an echo - echo is due to
mismatches; delay is due to propagation delays, processing delays, and
similar time-wasters.



You need a thiotimoline injector to solve the delay issue.
--

Was that Heinlen or Asimov? :-)

Ken


  #44  
Old December 12th 03, 12:57 AM
Ken Taylor
external usenet poster
 
Posts: n/a
Default Satellite to Satellite communication ?

"Hop David" wrote in message
...


Paul F. Dietz wrote:

Cables are popular because they're *cheaper* than satellites
(per unit of delivered bandwidth) what with the incredible advances
in fiber optics.

Paul



Perhaps for large metropolitan areas. I live in a little podunk place 120
miles from Tucson or Phoenix. Folks on the nearby rez who'd have no way
of getting fiber optic or cable are getting dishes.

However the metropolitan markets are much more lucrative. Don't know if
reaching the planet's rural areas justifies comsats.

--
Hop David
http://clowder.net/hop/index.html

It's a really dicey proposition. The number of people required in an area to
make it feasible to put in a terrestrial solution tends to be much less than
that required to make the comsat solution viable. While you can get greater
coverage area with comsat than a terrestrial install, you tend to need to
limit your coverage area anyway to raise the power level in your area of
interest to something considered usable by the customer (ie. they want a
small dish!). So it gets hard to get a satellite solution going with a
chance of long-term viability. Companies are still trying though - most
fascinating! :-)

Ken



  #45  
Old December 12th 03, 12:57 AM
Ken Taylor
external usenet poster
 
Posts: n/a
Default Satellite to Satellite communication ?

"Hop David" wrote in message
...


Paul F. Dietz wrote:

Cables are popular because they're *cheaper* than satellites
(per unit of delivered bandwidth) what with the incredible advances
in fiber optics.

Paul



Perhaps for large metropolitan areas. I live in a little podunk place 120
miles from Tucson or Phoenix. Folks on the nearby rez who'd have no way
of getting fiber optic or cable are getting dishes.

However the metropolitan markets are much more lucrative. Don't know if
reaching the planet's rural areas justifies comsats.

--
Hop David
http://clowder.net/hop/index.html

It's a really dicey proposition. The number of people required in an area to
make it feasible to put in a terrestrial solution tends to be much less than
that required to make the comsat solution viable. While you can get greater
coverage area with comsat than a terrestrial install, you tend to need to
limit your coverage area anyway to raise the power level in your area of
interest to something considered usable by the customer (ie. they want a
small dish!). So it gets hard to get a satellite solution going with a
chance of long-term viability. Companies are still trying though - most
fascinating! :-)

Ken



  #46  
Old December 12th 03, 11:06 AM
Pascal Bourguignon
external usenet poster
 
Posts: n/a
Default Satellite to Satellite communication ?

"Ken Taylor" writes:

"David Lesher" wrote in message
...
"Ken Taylor" writes:

Echo cancellation reduces echo, it doesn't do anything to delay except
potentially add to it. Delay doesn't show up as an echo - echo is due to
mismatches; delay is due to propagation delays, processing delays, and
similar time-wasters.



You need a thiotimoline injector to solve the delay issue.
--

Was that Heinlen or Asimov? :-)


Asimov.


--
__Pascal_Bourguignon__ . * * . * .* .
http://www.informatimago.com/ . * . .*
There is no worse tyranny than to force * . . /\ () . *
a man to pay for what he does not . . / .\ . * .
want merely because you think it .*. / * \ . .
would be good for him. -- Robert Heinlein . /* o \ .
http://www.theadvocates.org/ * '''||''' .
SCO Spam-magnet: ******************
  #47  
Old December 12th 03, 11:06 AM
Pascal Bourguignon
external usenet poster
 
Posts: n/a
Default Satellite to Satellite communication ?

"Ken Taylor" writes:

"David Lesher" wrote in message
...
"Ken Taylor" writes:

Echo cancellation reduces echo, it doesn't do anything to delay except
potentially add to it. Delay doesn't show up as an echo - echo is due to
mismatches; delay is due to propagation delays, processing delays, and
similar time-wasters.



You need a thiotimoline injector to solve the delay issue.
--

Was that Heinlen or Asimov? :-)


Asimov.


--
__Pascal_Bourguignon__ . * * . * .* .
http://www.informatimago.com/ . * . .*
There is no worse tyranny than to force * . . /\ () . *
a man to pay for what he does not . . / .\ . * .
want merely because you think it .*. / * \ . .
would be good for him. -- Robert Heinlein . /* o \ .
http://www.theadvocates.org/ * '''||''' .
SCO Spam-magnet: ******************
 




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