Warning: Spektrum satellite wires

**GravityKills** · 30-07-2010 09:48 AM

Hello,

The satellite wires for Spektrum receivers deteriorate over time, especially when exposed to nitro fumes. This shouldn't be a problem, since we've got usually three independent receivers (main box and two satellites).

What I didn't know is that a short circuit in one of the satellite wires can cause the whole receiver to stop responding.
I think nobody would expect that a redundant component (which has the sole purpose of improving reliability) can cause a worst-case failure of the whole receiver, and in such an obvious way.

See for yourself.

[ame="http://www.youtube.com/watch?v=s8CHqZJheug"]YouTube - Spektrum AR 7100 receiver short circuit[/ame]
With my brand-new AR 7100 it is 100 % reproduceable.
A couple of times, even the failsafe failed, and the short circuit caused all servos to do crazy movements in random directions.
What I would like to add is that probably the loss of control for the fraction of a second isn't that problematic. But what killed my model is the glitch when it wakes up again.

**Andy from Sandy** · 30-07-2010 10:26 AM

The satellite wires for Spektrum receivers deteriorate over time, especially when exposed to nitro fumes.

I would of expected the covering to be chemical resistant to some extent. Seems pretty poor if the nitro caused the fault as Spektrum must know the environment this kit is going to be used in.