Hi
I have a 12V winch connected to a car battery. The winch is drawing about 30Amps when in use.
I have a 433MHz remote that i build for it, and a 17cm antenna, however, the range is about 1 metre.
If i disconnect the motor, the range is 25m. This is still very poor (manufacturer of the Tx and Tx quote 100m), however, at the moment im just trying to solve the motor noise issue.
How can i stop the motor from interfering with the receiver? I thought a large cap accross the motor, but as the motor reverses, i cannot use electrolytic caps (polarity sensitive)
Any ideas?
I already have 2x 470uF caps and a 0.1u disc cap near the Rx supply rail.