Explore the EMF Audio Gallery for live EMF meter sounds
and understand EMF signals. Hear unique real-time audio from electromagnetic frequencies
Welcome to the EMF Audio Gallery
Discover the fascinating world of electromagnetic fields through sound. In this gallery, you’ll hear a scary symphony of unique audio recordings captured from live EMF meters, offering a rare auditory insight into various EMF signals. Each sound is accompanied by a short explanation of the signal and the devices that produce them. Immerse yourself in the subtle and sometimes eerie symphony of electromagnetic frequencies and deepen your understanding of the invisible forces all around us.
The terms “2G GSM 1” all the way to “2G GSM 4” generally refer to the different frequency bands used in the GSM (Global System for Mobile Communications) standard for 2G networks:
2G GMS 1
Primary Use: Initially deployed in Europe and other parts of the world. Coverage: Better range and penetration, making it suitable for rural and suburban areas. Antenna Design: Larger antennas to support the lower frequency, often mounted high for maximum coverage.
2G GMS 2
Primary Use: Primarily used in urban areas to provide additional capacity. Coverage: Shorter range but higher capacity, ideal for densely populated areas. Antenna Design: Smaller antennas compared to GSM 900, deployed in higher densities to support more users.
2G GMS 3
Primary Use: Primarily used in urban areas to provide additional capacity. Coverage: Shorter range but higher capacity, ideal for densely populated areas.
2G GMS 4
Primary Use: Also used in the Americas, especially in urban environments. Coverage: Similar to GSM 1800, with shorter range but higher capacity.
3G UMTS Frequency Bands
UMTS (Universal Mobile Telecommunications System) operates in several frequency bands. The most commonly referred bands
are UMTS 2100 (UMTS 1) and UMTS 1900 (UMTS 2).
3G UMTS 1
Frequency Band: 1920–1980 MHz (uplink), 2110–2170 MHz (downlink) Primary Use: Widely used in Europe, Asia, and other regions. Coverage: High capacity, suitable for urban and suburban areas.
3G UMTS 2
Frequency Band: 1850–1910 MHz (uplink), 1930–1990 MHz (downlink) Primary Use: Primarily used in North America. Coverage: Similar to UMTS 2100, providing high capacity for densely populated areas.
LTE Frequency Bands
4G LTE (Long-Term Evolution) networks operate across a wide range of frequency bands. Here we focus on LTE Band 1, LTE Band 2, and LTE Band 3, which are commonly referred to as LTE 1, LTE 2, and LTE 3.
4G LTE 1
2100 MHz Primary Use: Widely used in Europe, Asia, and other regions. Coverage: Provides good capacity and moderate coverage, suitable for urban and suburban areas.
4G LTE 2
1900 MHz Primary Use: Primarily used in North America. Coverage: Similar to LTE Band 1, with good capacity for urban and suburban areas.
4G LTE 3
1800 MHz Primary Use: Primarily used in North America. Coverage: Similar to LTE Band 1, with good capacity for urban and suburban areas.
5G technology operates across a wide range of frequency bands categorized into three main groups: low-band, mid-band, and high-band (millimeter wave or mmWave). Each band has distinct characteristics and uses.
Low Band 5G
- Frequency Range: 600 MHz to 700 MHz
- Primary Use: Provides broad coverage and better penetration through buildings and obstacles.
- Regions: Widely used in the United States (600 MHz), Europe, and other regions.
- Antenna Design: Typically larger antennas similar to those used in 4G LTE low bands, often deployed on existing cell towers to provide extensive coverage.
Mid-Band 5G
Frequency Range: 2.5 GHz to 4.5 GHz
- Primary Use: Balances coverage and capacity, suitable for urban and suburban areas.
- Regions: Used in many parts of the world including the United States, Europe, China, and Japan.
- Antenna Design: Compact antennas that can be mounted on rooftops, towers, or small cells. Often incorporates MIMO (Multiple Input Multiple Output) technology to enhance capacity and speed.
High-Band 5G
- Frequency Range: 24 GHz to 39 GHz
- Primary Use: Provides extremely high capacity and low latency, suitable for dense urban areas and specific applications like fixed wireless access and indoor coverage.
- Regions: Primarily deployed in the United States, South Korea, and Japan.
- Antenna Design: Very small antennas with beamforming capabilities, often mounted on street furniture, buildings, and indoors to provide targeted high-speed coverage.
Bluetooth 1.0
Data Transfer Speed: Up to 1 Mbps. Power Consumption: Higher power consumption compared to later versions. Range: Approximately 10 meters (33 feet). Features: Basic wireless communication capabilities for short-range devices. Compatibility: Some issues with interoperability and compatibility between different manufacturers' devices.
Bluetooth 2.0 + EDR
Data Transfer Speed: Up to 3 Mbps with Enhanced Data Rate (EDR); basic rate remains 1 Mbps. Power Consumption: Reduced power consumption due to the faster data rate, allowing devices to complete tasks more quickly and enter low power states sooner. Range: Similar range of approximately 10 meters (33 feet), but some improvements in signal quality. Features: Introduction of Enhanced Data Rate (EDR) for faster data transmission, better audio quality, and more efficient use of the spectrum. Compatibility: Improved interoperability and backward compatibility with Bluetooth 1.0 devices.
Continuous Wave Signal Marking
(CW) signal, which is a type of signal used in radio communication where the signal is a continuous unmodulated wave. This marking could be for purposes of identification, analysis, or processing in various applications, such as signal processing, telecommunications, or electronics.
DECT (Digital Enhanced Cordless Telecommunications)
Frequency Range: Typically operates in the 1.9 GHz frequency band. Features: DECT provides secure and clear digital communication, efficient use of the frequency spectrum, and the ability to handle multiple simultaneous calls. Technology: DECT utilizes time division multiple access (TDMA) to divide the frequency into time slots, allowing multiple users to share the same frequency without interference.