Replies to This Discussion

Permalink Reply by Alex on June 3, 2012 at 11:35pm

Mmm... youtube didn't seem to embed correctly... also... I think the 'ghosting' is from the cheapo USB recorder

http://www.youtube.com/watch?v=ncACKNpp_Do

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Permalink Reply by Chris Huitema on June 4, 2012 at 12:34am

I run a similar tx/rx to that one. and mines not that bad.

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Permalink Reply by Rick Eis on August 5, 2012 at 9:26pm

Chris, 

It looks like you are recording in the mission planner window....if true ...how are you doing this? 

Rick

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3D RoboticsPermalink Reply by Chris Anderson on August 5, 2012 at 9:37pm

Just right-click in the HUD window:

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Permalink Reply by Rick Eis on August 7, 2012 at 2:28pm

Thanks Chris,  this is awesome.  I keep on learning things the APM2 and Mission Planner will do.  It would be cool to have this all written down somewhere and updated so we can print the latest info any time and it will be up to date.  I bet you will write back showing me that it is already being done! :)

Thanks again,

Rick

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3D RoboticsPermalink Reply by Chris Anderson on August 7, 2012 at 2:34pm

Rick: Yes, it's in the manual ;-)

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Permalink Reply by Rick Eis on August 7, 2012 at 3:23pm

Chris,

Well, see...I was looking for the above function several days ago, and I did not see it.  Is it really in the manual?  There seems to be so much the APM will do, but it appears I often find little pieces of info here and there.   And yes, it is often very well written.  And often, when I go back to find it, I can not because it was on some page or link way over some place else.

Maybe I once again, am having trouble adjusting to the exponential curve of this info age :)

Thanks again Chris,

Rick

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Permalink Reply by Kevin Vertucio on June 4, 2012 at 5:19am

Can you share some photos of your setup? Using the standard whip antennas with 5.8GHz is not going to give good results. 5.8GHz is very sensitive to obstructions and objects infracting on the fresnel zone. Any parts of your frame or lipo obstructing the antenna can cause this. Also any obstructions of the LOS path between the two antennas will cause problems. I would try making (or buying) some circularly polarized antenna ( cloverleaf/skew planar wheel ) to give you better results.

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Permalink Reply by Alex on June 4, 2012 at 4:08pm

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Permalink Reply by Alex on June 4, 2012 at 6:33pm

Here are a couple of shots of the setup. The miniOSD is in the front casing with the camera with the TX attached on the outside.

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Permalink Reply by Jake Stew on June 4, 2012 at 8:35am

Hard to be satisfied with that!  5G is prone to lots of problems though.  Like it was mentioned, 5G is pretty LOS and just about anything can cause problems.  Vehicles can also cause problems because of the big metal frame and electronics.  Standard antennas are pretty crappy.  I find it's really hard to get good antenna results with higher frequencies, even 2.4g, which you'd think would be totally nailed down by now.

I'd try some various types of range testing to isolate the problem.  Be sure to let us know your results.

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Permalink Reply by Alex on June 4, 2012 at 6:53pm

I'll pull the equipment off the frame and try it out a bit more with clear LOS.

I also found the below, which would seem to indicate that it is 'Multipath' interference...

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