Freewave Radio Moving live H.264 Video, with 10 PWM Channels and GCS

Test Airframe: Senior Telemaster 8'

Arduino Pro
Freewave Radio
Eflight ESC & Motor
H264 Video Server

Joysticks that work:

Logitech G940 (no yaw on foot pedals yet) - Working on getting trim math working in the code.

Logitech Attack 3 (Tested all control surfaces working)

2 Cameras, 1 foward facing, 1 PTZ

Using Laptop with UBUNTU and Logitech Joysticks.

Phase 1:


a. Working Joystick Controls all surfaces of Airframe, Various buttons on Joystick change APM flight mode.
a. Completed



b. Working on integrating Logitech G940 Flight System

no yaw on foot pedals as off yet, does n't seem to show in the PYGAME librarys.

work to be done.


Phase 2: Complete
a. General Test - Live video through radio and video server.

b. Need to test and measure various bandwidth requirements for H264, frame sizes etc...


Phase 3: Complete
a. 4 Mile Test - 74db signal level Great video quality control surfaces respond instantly.
b. 15 mile test coming shortly.


Phase 4:Working on it.
Test GCS with waypoints.


Phase 5: Drop everything neatly back into airframe.

Views: 3453

3D Robotics
Comment by Chris Anderson on March 7, 2011 at 3:01pm
Eraser: are you running APM 1.02 from the zip file?
Comment by Eraser on March 7, 2011 at 3:10pm

No I am using these instructions for the 2.0 functionality....

3D Robotics
Comment by Chris Anderson on March 7, 2011 at 3:27pm
Ah. That code hasn't been released yet and those instructions are out of date. We'll be releasing a public version this week.
Comment by I.S. on March 7, 2011 at 3:34pm

wait, wait, wait. Please way more explanation about that H.264 vdo streaming.

-76dBm @ 4miles with what Pout? LOS? Antennas? etc?

Thanks in adavance.

Comment by Eraser on March 7, 2011 at 3:37pm

10.5 bluewave dbi yagi on base station, 3 dbi omni on plane.  Partial Line of Site, (some trees)

1 Watt power out, (into antenna).


Using an H264 video encoder and an ordinary analog camera.  .

Comment by Eraser on March 7, 2011 at 3:38pm

Radio Specs:

  • Up to 60 miles line of sight.
  • Superior performance in noisy environments.
  • Temperature range from -40ºC to +85ºC (-40ºF to +185ºF).
  • Single radio configurable as a master, slave, or slave/repeater.
  • 2.0" x 2.0" (50.8 mm x 50.8 mm) & only weighs 21 grams.
  • Ethernet with 2 serial ports available*.
  • TDMA - Time Divisible Multiple Access available
Comment by I.S. on March 7, 2011 at 3:43pm

Looks like a nice setup for vdo streaming.

I suppose freq is somewhere 900 or 868Mhz?

could you post a link of the radio module and vdo encoder board (supposed are different) used?


Comment by Eraser on March 7, 2011 at 3:46pm
Comment by frederic reblewski on March 7, 2011 at 4:42pm
what kind of bandwidth do you need for the camera? I see that the freewave modem exist from 115K to 1.2Mbits/s . which one are you using? I also see that this product is under "government radio". was there any problem to access it?
Comment by Eraser on March 7, 2011 at 4:45pm

I need between 50kbps and 700kbps depending on how much motion exists in the frame...

For instance if camera is showing alot of the airframe, such as tail mounted, it uses a whole lot less bandwidth as it doesn't have to update the areas where the airframe doesn't move much as often.

They have government versions.....  This one is not.  I am using the 1.2Mbits/s version.


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