Bingo.
Electrical noise is being generated by either the brushes on the motors
or by an intermediate relay used to drive the motors. In all R/C
environments, brushed motors should always have capacitors placed across
their input leads (or from the leads to the case) to reduce noise
transmission.
Similarly, relays/solenoids should always have at least a diode placed
across the coil leads (in reverse direction) to suppress spikes caused
by the collapse of the coil. Coils can generate a sufficient electrical
spike to cause them to be heard on a TV speaker located 8-10 feet away.
It's very doubtful that micro-switches are generating enough electrical
noise to cause a problem themselves.
On 4/2/2013 2:47 PM, [email protected] wrote:
imho the interference isnt coming from the speed controller its far more
likely that its coming from the motors themselves.
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