Futaba 7C + Corona 8ch Rx - Antenna placement + range questions

Started by venquessa, September 29, 2010, 05:24:55 PM

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venquessa

Hi,

I am slightly concerned by the amount of pan servo glitching I was getting at range with my setup.  You can see it in the video (posted in my stuff arriving thread in general) around: 2:50 out over the beach seeing how close I can get to the little boat house.

It also happens here and there at closer range, but it's usually only one twitch here or there.  The point in the video is close to or actually my maximum distance for the flight (and ever!) and the pan servo is twitching a LOT.  Also the throttle was slow to respond and glitchy.

I'm assuming this is me closing in on the edge of my control range, but from Google maps it's only about 500m max.

At the moment the wiring looks like:


There is slack on the antenna which is bunched up around the Rx area, however the motor wires also pass in/around/over the Rx.

Is this (and the crap stock ESC) likely the cause?

I really want to do the full length of the beach.  Patch antenna should be in the post from Simon for the weekend.  So control range is my current concern.

What do you guys do with the antenna?  I celotaped mine down the bottom of the fuse and left the excess hangin off the tail end.

Does the 7C have any settings I can tweak?

Paul

Coyote

The glitches are "A" typical of out of range.

Firstly the most important is the antenna slack right next to the rx, this is killing the performance of your antenna, at the oher end it would effect it a little, right at the rx is a big problem, it has to be straight especially at the rx end.

The closer glitches are again probably due to this, but if once straightened out the pan still glitches add a ferrite ring to the pan servo wire directly fter the servo, wrap at least 5 time round the ferrite for effectivness.

This maybe cured by straightening anyway so may not be needed.

The rest looks fine and should work fine still :)
Education and schoolin is good, but FPV is gooder :)

venquessa

Thanks Ian,

That's leaves me with a puzzle.  If I keep the Rx in the same place I would need to pull the slack out the bottom of the plane, but if I then tape it up so it doesn't get broke on landing I would have to untape it everytime I want to take the Rx back out.  Suppose that's not a big woe.

I'll try it and see.

Got my new motor, 6x4s and a hobbywing Platinum Pro 40A ESC today.  Should make things feel more trust worthy.

Weather still stinks though.  Might be a little window at the weekend, might not :(

Paul