Despite popular belief, the electrical noise isn't causing the
"receiver" to have problems (on the RF side), it is causing the "servo"
to have problems (on the servo side). Basically, the RF noise generated
by the motor travels through the air, induces a voltage in the servo
cable that alters the correct signal coming from the receiver, thereby
causing the servo logic to act weird (the correct technical term). ESCs
usually have better logic for filtering such noise on the signal line,
but not always. Older and inexpensive servos are the most susceptible
to such problems.
Motors need caps. Coils need diodes. Logic needs separate power.
You can ignore any or all of these safeguards and a system may still
work (most of the time), but the highest reliability comes from using
all three safeguards.
On 4/2/2013 4:51 PM, Neil Rochford wrote:
So if the interference is from the motors to the receiver why does it
not affect the receiver when I use a commercialesc like the sabertooth ?
does the sabertooth prohibit nasty "spikes" to the motors ?
This will be a 2.4 gig system.
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