Hi. I'm trying to come up with a way to stop my son's 24 volt-converted Power Wheels car from a distance. I bought an RF relay on Amazon (24 volt, 40 amp), installed it in the car and during tests in my garage it worked exactly as I expected it to. Later that day my son took his car out in the yard and when I tried the switch I found that it only worked if I was very close to the car (within about 15 feet). The RF switch is advertised to work as far as 328 feet in perfect conditions. I never expected to get that but 15 feet was just bad. I later found that with the car stopped, I could turn the switch on and off from very far, which tells me that the motors in the car are causing interference with the RF signal. To test my theory, I connected the output of the RF relay to the input of an optocoupler relay which switched the hot wire going to an AC motor and sure enough I was able to turn the AC motor, which was in my garage, from across the street, a much better range. So, I think I have a solution to my problem but since I am no trained electrical engineer and play with electronics as a hobby, I thought I would ask here if there's something simpler I can do to stop the motors from causing interference with the RF signal. For your reference, this is the switch I'm using: https://www.amazon.com/gp/product/B...H6VQH&linkId=9f156c8553e96d10225f9ae5b6d771b2
Thanks!
Thanks!