Comment by Arash Joorabchi on November 23, 2009 at 5:01am

Hi Colby,

It might worrth experimenting with video calling for real time FPV instead of broadcasting the video over the Internet because using the video calling service you would be relying on the network provider to do the data copression and streaming. It also might be also cheaper this way since some network providers offer free video calling services between their customers. In both cases having an opensource mobile phone might become handy becuase they make it easier to manipulate the video programatically. For example if you use a google phone you might be able to add you telemetry data as OSD to your video.

Best of Luck
Arash Joorabchi

Comment by sid on November 23, 2009 at 5:34am

COlby,
Another point to be noted. Cell phone networks do not work beyond certain altitude. I hav emyself tried with Cell phone based GPS tracker.. When you ring that no. it feeds you back with sms of it's location. It did not work over altitude of 100 Mtrs AGL..

SID

Comment by Colby sts on November 23, 2009 at 9:45am

I've personally gotten cell reception in a private plane 6,000 feet AGL. That's strange your setup didn't work above 300 feet.

Comment by Colby sts on November 23, 2009 at 10:50am

Arash,

The Motorola Droid runs Android OS and can capture video in 720 X 480 lines. What is OSD?

Moderator Comment by Sgt Ric on November 23, 2009 at 11:06am

OnScreen Display.

Comment by Arash Joorabchi on November 23, 2009 at 1:02pm

I doubt that the current 3G mobile networks can handle the large volume of data required for real-time streaming of video in that resolution even when the handset is in the stationary position and also a substantial drop in the bandwidth is expected when the handset is attached to a moving vehicle.

Comment by Colby sts on November 23, 2009 at 1:09pm

This video documents a stationary stream through what I assume is a 3G network. You right through, while moving their may not be enough bandwidth to stream videos of such high resolution.

Moderator Comment by Sgt Ric on November 23, 2009 at 1:48pm

We have had similiar threads here on the topic of bandwidth requirements for streaming video.

I do not recall if 3G/4G networks were brought up, but the consensus was that the framerate just wasn't there using cellphones.

A separate conversation about using sat phones dealt with the method that the providers package the data in bursts, which while not actually being defined as lag, does introduce results that are inconsistant with acceptible video use.

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