The type of radio signals that a fan can pick up depends on the type of fan. Some fans are designed to pick up only AM signals, while others can also pick up FM signals. Some fans even have built-in radios, which allow you to listen to your favorite radio stations without having to connect an external radio.
If you want to use a fan to pick up radio signals, there are a few things you can do to improve the reception. First, make sure that the fan is turned on and plugged into an outlet. Second, position the fan so that it is facing the radio station you want to listen to. Third, adjust the fan speed to find the best reception.
If you are still having trouble picking up radio signals, you may need to use an external antenna. An external antenna can be connected to the fan's antenna terminals, and it will help to improve the reception of radio signals.