Seeing radio waves with a light bulb
Using a low power amateur radio transmitter and a simple light bulb receiver circuit, we see how radio waves and electromagnetic induction transmit energy and signals wirelessly through the air. We also see how dipole and Yagi antennas radiate their energy in different patterns. Read on to build your own dipole receiving antenna!
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More:
- Ham radio fun for holiday air travel
- How-To: Make a Star Trek Bluetooth Communicator
- How-To: Set up an HF portable radio while hiking
- Ham Radio 101: Getting Started Without a License
- Catching satellites on ham radio
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