Part 4/16:
Hudson demonstrates that these receivers are used to pick up signals from stations like WWV in Fort Collins, Colorado, known for transmitting time signals and other auxiliary communications. The setup includes an outside long wire antenna to facilitate long-distance reception, utilizing the Earth's ionosphere for signal bouncing during nighttime, which explains why signals are clearer after sunset. The host and Hudson listen to the station’s time signals, observing how solar activity influences the ionosphere and affects radio wave propagation—a natural phenomenon critical to long-range communications.