Comments

• srinath mallikarjunan August 8, 2012 at 1:49am

  Let's assume the laptops were in 2 different cities. So you couldn't use a wireless lan/wifi.

  A conventional modem would enable point to point data transfer. Can a 3G modem also do this. In which case you should be able to transfer a file from 1 laptop to the other by dialing the sim card number of the other modem.
• 

  Tommy Larsen August 8, 2012 at 1:32am

  You can use a direct wifi connection between the 2 laptops without using the 3g modems. Setup VLC to stream between the laptops.
• srinath mallikarjunan August 8, 2012 at 1:07am

  Suppose you have 2 usb 3G modems, connected to 2 laptops. Can you exchange files/video between the 2 laptops without involving the internet.

  I know a 3G video call is possible between 2 phones, so i guess it should be possible to stream video from 1 laptop and view it on another. The reason i would like to avoid the internet layer is that it seems unnecessary. We just need reliable point to point communication/data links for a uav
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  Tommy Larsen August 7, 2012 at 10:30pm

  I think maybe we can find the solution on this link

  http://www.drupaler.co.uk/blog/installing-3g-usb-modems-linux/497
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  Tommy Larsen August 7, 2012 at 6:01am

  Ok, i understand. In fact it's a great idea! I just got my raspberry pi last week, and i have found the TTL UART on this to connect to UART0/2 on my APM2. Share that UART to IP and connect via TCP in mission planner. I planned to use a 3g router for my Rapberry pi, but why not connect a USB GSM dongle directly to my Raspberry Pi ! I will try this :)
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  Tommy Larsen August 7, 2012 at 4:33am

  Alan, is this a GSM dongle ?
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  Murray Spoelstra July 12, 2012 at 5:58am

  Impressive. Did you still use the router from amplified.com? How much does it weigh and do you also get about 2 sec lag times?

  I enquired about the broadband bonding systems from mushroom networks at http://www.mushroomnetworks.com/marketing.aspx?title=RTMP%20Video%2... , but it costs $5000+ for a fast cellular connection. Maybe someone has tried a more affordable DIY version?

  My telemetry over cellular isn't working yet. Suspect I blew some circuits as even the 3DR radio doesn't work now on the APM1. Ugh..
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  Toby Mills July 12, 2012 at 2:41am

  I rarely fly that altitude, it was only to test to see how high 3G would go.

  In this case I flew in a very remote area in auto mode with failsafe RTL. I also keep the plane line of site and monitor radio channels. At the slightest hint of any traffic, I can drop it out of the sky like a stone. At that height it is a tiny dot in the sky.
• 100KM

  Hein du Plessis July 12, 2012 at 2:30am

  @Toby - that's impressive - do you fly FPV or Auto to that altitude? Beaut of a pic!
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  Toby Mills July 12, 2012 at 12:56am

  Skywalker X8 with 2 x 4S 3700mAh and 14 x 8 prop

  I have been that high with a skyfun as well with just a single 3S 2700mAh

  x8%2010000ft1.jpg

  

  https://storage.ning.com/topology/rest/1.0/file/get/3692463876?profile=original