[aprssig] ISS ground digi

[Andrew Rich]

Perhaps one of the smart guys that make TNC"s from uP can include some search and replace code in the digi path ?

Add another option "Satellite SGATE DIGI"

Search for "SGATE" replace with "WIDE2-1" or preserve the "SGATE" as well.

Maybe a satellite "robot" can be made like I did years ago with a PIC chip

It listened for "SGATE" to come in on the serial line , (ie satellite in range) and the TX for 10 minutes every minute then went back to sleep.

Maybe we need to launch a satellite that "triggers" ground stations, and then relays the list ? 

The ground unit could be considered a "transponder" itself.

Maybe the sat could have some smarts and "POLL" heard ground stations ?

Maybe the ground transponders could have a "lock" light.

I see the ground device as being a simple radio and a uP style TNC

Just a few ideas.

The best satellite I liked was dove i thnk its was ?

Just straight packet down ?

What would be cool is a satellite that sends it position LAT and LON.

 Andrew VK4TEC




  ----- Original Message ----- 
  From: Andrew Rich 
  To: TAPR APRS Mailing List 
  Sent: Saturday, January 22, 2011 9:06 AM
  Subject: Re: [aprssig] ISS ground digi


  I was hoping to get get away with a solar remote site

  DIGI_NED needs a PC ?
    ----- Original Message ----- 
    From: Ray Wells 
    To: aprssig at tapr.org 
    Sent: Saturday, January 22, 2011 8:47 AM
    Subject: Re: [aprssig] ISS ground digi


    Andrew,

    Have you looked at DigiNed? It has great flexibility.

    Ray vk2tv

    On 22/01/11 09:40, Andrew Rich wrote: 
      Hello

      I need a hand

      I would like to onwards digi the ISS beacons and also beacon via ISS

      But I would like to do it via a DIGI and it MAY be on another frequency.

      I can work out the frequency bit, thats fine.

      It the downlink path I am having issues working out.

      ISS only have SGATE

      How do you make the "go further" than just "SGATE"

      How can you turn 

      RS0ISS-4>CQ,SGATE:>ARISS - International Space Station (BBS/APRS on) 

      into 

      RS0ISS-4>CQ,SGATE,<another digi>, <another digi>:>ARISS - International Space Station (BBS/APRS on) 

      Perhaps a simple cross band VF repeater might be the trick ? Get around the packet path issues ?

      - Andrew - 

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