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Hot!How much delay is there in satellite

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RTYRYTRYY
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2020/01/13 01:25:46 (permalink)
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How much delay is there in satellite

Hello sir
What is delay in satellite 
#1

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    katela
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    Re: How much delay is there in satellite 2020/01/13 08:10:01 (permalink)
    +4 (4)
    Do you mean latency in communication? 
    I don't think this is an appropriate forum for such questions.

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    #2
    CasaD
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    Re: How much delay is there in satellite 2020/04/08 23:37:32 (permalink)
    -2 (4)
    speed of light / distance?
    #3
    LdB_ECM
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    Re: How much delay is there in satellite 2020/04/09 08:57:51 (permalink)
    -2 (2)
    If you are talking about a low priority VSAT data session it's generally over 1000mS unless you pay for priority. It is so much you can't hold a secured connection for online internet banking for example.
     
    The absolute minimum you can get is 240mS, made up of 120 milliseconds to reach a geostationary satellite and then 120 milliseconds to reach the ground station but you don't want to know what that would cost.
    #4
    crosland
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    Re: How much delay is there in satellite 2020/04/09 09:38:39 (permalink)
    +3 (3)
    forty-two
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    ric
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    Re: How much delay is there in satellite 2020/04/09 16:55:39 (permalink)
    +2 (2)
    The original post was a troll. It's a pity CasaD unknowingly restarted this zombie topic.
     

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    pcbbc
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    Re: How much delay is there in satellite 2020/04/09 18:04:15 (permalink)
    +1 (1)
    ric
    The original post was a troll. It's a pity CasaD unknowingly restarted this zombie topic.

    Indeed.
     
    Worse than that, restarted AND with an incorrect answer.  It should be:
    distance / speed of light

    Or perhaps even:
    2 * distance / speed of light
    if you want to calculate the absolute minimum round trip.
    #7
    jtemples
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    Re: How much delay is there in satellite 2020/04/09 18:47:29 (permalink)
    0
    But is it really a zombie topic after only3 months?  What is delay in zombie?
    #8
    ric
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    Re: How much delay is there in satellite 2020/04/09 18:52:51 (permalink)
    +2 (2)
    Trolls have a very short half life.
    It instantly became a zombie topic once the troll disappeared. :)
     

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    PStechPaul
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    Re: How much delay is there in satellite 2020/04/09 19:49:30 (permalink)
    0
    Why give LDB_ECM two downvotes? Seemed like good information, even if it was in response to a "troll" thread.

     
    #10
    davea
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    Re: How much delay is there in satellite 2020/04/09 21:08:53 (permalink)
    +1 (1)
    I think a note to line 42 needs to be added
    "at sea level radio waves travel at 0.998891 X speed of light" 
    #11
    mlp
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    Re: How much delay is there in satellite 2020/04/12 18:27:31 (permalink)
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    davea
    "at sea level radio waves travel at 0.998891 X speed of light" 

    speed of light in a vacuum
     
    All EM waves always travel at 1.0 x the speed of light.
    The medium through which they travel determines precisely what that speed is.
     
    LdB_ECM
    The absolute minimum you can get is 240mS, made up of 120 milliseconds to reach a geostationary satellite and then 120 milliseconds to reach the ground station

    Not strictly correct.
    There are satellites much closer than GEO.
     
    post edited by mlp - 2020/04/12 18:30:53

    Mark (this opinion available for hire)
    #12
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