FrequencyBands & Spectrum

Explore the electromagnetic spectrum from radio waves to microwaves, understanding how different frequencies enable wireless communication.

Start with Spectrum

Frequency Bands

Navigate through the different regions of the electromagnetic spectrum

1861 - Present

The Electromagnetic Spectrum

The complete range of electromagnetic radiation, from radio waves to gamma rays.

3-30 kHz

Very Low Frequency (VLF)

Submarine communication, natural radio research, and deep ocean penetration.

30-300 kHz

Low Frequency (LF)

Maritime navigation, Loran-C, time signals, and submarine communication.

3-30 MHz

High Frequency (HF)

Shortwave radio and ionospheric propagation enabling global communication.

30-300 MHz

Very High Frequency (VHF)

FM radio, television broadcasting, and land mobile communications.

300 MHz - 3 GHz

Ultra High Frequency (UHF)

Television, cellular networks, WiFi, GPS, and modern wireless applications.

3-300 GHz

Microwave Frequencies

Satellite communications, radar systems, and point-to-point links.

1800s-Present

Acoustic Telemetry

Underwater sound-based communication — hydroacoustic modems, submarine telemetry, oceanographic sensors.