Toy cars that operate by a radio signal are called radio controlled cars or RC cars. By law RC cars are designated a certain range of frequencies to operate within. Jamming any signal whose frequency is already known is easy. The trick is to figure out what frequency is being used by your specific RC car, then you can broadcast that exact frequency to jam radio transmissions. Follow the steps below to detect what frequency is being used for a toy car and how to jam it.
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Things you need
- 75MHz radio frequency checker
- Radio frequency generator
Jam signals for older cars. RC cars built before 2003 operate at 27MHz. There are only six channels allowed for use for RC cars at 27MHz. Set your radio frequency generator between 27.095 and 27.145 and broadcast any noise at maximum power (usually maximum power for an RF generator is between 100 to 200 milliwatts). This will jam all six 27MHz channels for roughly a 400 to 600 foot radius. However, if it is a newer RC car it will operate at 75MHz. Follow the next two steps to jam a 75MHz signal.
Find the radio signal being used by the 75MHz RC car. There are 30 different channels used by a 75MHz RC car. The allotted frequencies for RC cars lie between 75.410MHz and 75.990MHz. At this high a frequency, jamming all channels with common equipment isn't possible. Use a 75MHz frequency checker to determine what frequencies between 75.410MHz and 75.990MHz are being utilised.
Broadcast any noise at the same frequency that your frequency checker detected. If you detect more than one frequency then there are other RC vehicles in use within 600 feet. The only way to determine what frequency is being used by each different vehicle is trail and error.
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