Key Points – Electromagnetic Spectrum: RF, microwaves, cellular, WiFi, 4G, 5G and infrared
1.0: December 14, 2019
Revised Summary Version of: “Electromagnetic spectrum: RF, microwaves, cellular, WiFi, 4G, 5G and infrared”: https://canadianliberty.com/electromagnetic-spectrum-rf-microwaves-5g-and-infrared/
Frequency and Wavelength Calculation: https://www.ahsystems.com/EMC-formulas-equations/frequency-wavelength-calculator.php
Frequency (cycles per second / Hz) is equal to C (speed of light: 299,792,458 meters/second) divided by Wavelength (meters). Wavelength is C divided by Frequency.
Electromagnetic Spectrum: https://www.coursehero.com/study-guides/boundless-physics/the-electromagnetic-spectrum/ (original link: https://courses.lumenlearning.com/boundless-physics/chapter/the-electromagnetic-spectrum/)-spectrum/. From left to right, frequency increases as wavelength decreases:
1) Radio Waves: Wavelengths between 1 mm and 100 km (frequencies between 300 GHz and 3 KHz). Different types of signals are modulated differently (e.g., AM and FM).
Microwaves are radio waves with wavelengths between one meter and one millimeter and frequencies between 300 MHz and 300 GHz.
2) Infrared light has wavelengths from 0.74 µm to 1 mm (300 GHz to 1 THz). It includes most of the thermal radiation emitted by objects near room temperature.
*Far-infrared: 300 GHz (1 mm) to 30 THz (10 μm) (THz is Terahertz)
*Mid-infrared: 30 to 120 THz (10 to 2.5 μm)
*Near-infrared: 120 to 400 THz (2,500 to 750 nm)
Infrared radiation is popularly considered to be “heat radiation,” but “light and electromagnetic waves of any frequency will heat surfaces that absorb them.”
. . .Infrared light from the Sun only accounts for 49% of the heating of the Earth, with the rest being caused by visible light that is absorbed then re-radiated at longer wavelengths. . .
3) Visible Light ranges from 390 to 750 nm, from violet (380-450 nm) to red (620-750 nm).
Plants (and many bacteria) convert the light energy captured from the Sun into chemical energy . . . photosynthesis uses carbon dioxide and water, releasing oxygen as a waste product. Photosynthesis is vital for all aerobic life on Earth (such as humans and animals) . . .
4) Ultraviolet Light: 10 nm to 400 nm, photon energies from 3 eV to 124 eV (1 eV = 1.6e-19 J – higher frequencies often expressed in terms of energy).
Most UV is non-ionizing radiation, though UV with higher energies (10-120 nm) is ionizing. All UV can have harmful effects on biological matter (such as causing cancers) with the highest energies causing the most damage.
This is because an ultraviolet photon can disrupt chemical bonds.
5) X-Rays: 0.01 to 10 nm, frequencies: 30 petahertz to 30 exahertz (30E+15 Hz or 30 times 10 to the power of 15 Hz) to 30E+18 Hz), and energies ranging from 100 eV to 100 KeV.
6) Gamma Rays have frequencies over E+19 Hz, energies over 100 keV, and wavelengths less than 10 picometers [1 picometer is 1E-12m = 0.000000000000 m and 1 nanometer (nm) is 1E-9m = 0.000000000 m].
Radio Frequency Bands: From https://www.coursehero.com/study-guides/boundless-physics/the-electromagnetic-spectrum/ (original link: https://courses.lumenlearning.com/boundless-physics/chapter/the-electromagnetic-spectrum/)-spectrum/ and https://www.rfpage.com/what-are-radio-frequency-bands-and-its-uses/:
2.1 Extremely Low Frequency (ELF): 3 Hz to 3 KHz. Seismic studies.
2.2 Very Low Frequency (VLF): 3 KHz to 30KHz. Wavelength: 100 km to 10 km. Submarines, time synchronization.
2.3 Low Frequency (LF): 30 to 300 KHz, 10 km to 1 km. Reflected by ionosphere: suitable for long distance communication. Amateur radio operators, submarines, RFID tags.
2.4 Medium Frequency (MF): 300 KHz to 3 MHz, 1 km to 100 m. AM radio, navigation systems, emergency signals.
2.5 High Frequency (HF): 3 MHz to 30 MHz, 100 m to 10 m. Short wave: https://en.wikipedia.org/wiki/Shortwave_bands. Reflected by ionosphere. Aviation, near field communication (NFC), government, amateur radio, weather station broadcasting
2.6 Very High Frequency (VHF): 30 MHz to 300 MHz, 10 m to 1 m. Analog TV. FM Radio (88 MHz to 108 MHz). Medical equipment (MRI).
The following bands (UHF, SHF and EHF) are microwave bands:
2.7 Ultra High Frequency (UHF): 300 MHz to 3 GHz, 1 m to 100 mm (1 m to 10 cm) Decimeter band. GPS, “satellites, pagers, WiFi, Bluetooth,” TV, “GSM, CDMA and LTE mobile transmission,” cordless phones, walkie-talkies
2.8 Super High Frequency (SHF): 3 to 30 GHz, 100 mm to 10 mm (10 cm to 1 cm): Centimeter band. Has to be line of sight, obstructions will break the communication. Point to point, satellite, digital TV in “Ku band (DTH service – direct to home), WiFI (5 GHz channel), microwave ovens,” mobile networks. Most radar transmitters..
2.9 Extremely High Frequency (EHF): 30 to 300 GHz, 10 mm to 1 mm. Millimeter band. Radio astronomy, remote sensing, 5G. Beyond this is far infrared light or terahertz radiation.
Microwave Transmission: http://ecomputernotes.com/computernetworkingnotes/communication-networks/microwave-transmission: High frequency signals are “susceptible to attenuation” and need to be “amplified or repeated” after a certain distance. To increase the signal strength and transmission distance, the radio beam from the transmit antenna is focused by a concave metal dish on the receiving antenna. The transmission is point-to-point. Each antenna must be within line of sight. The curvature of the earth and haze, etc. limits the distance of “microwave hops.” For higher frequencies, or for digital rather than analog signals, the distance between towers has to be shorter. Microwave towers have been used for a long time as part of Canada’s long-distance communications backbone (https://en.wikipedia.org/wiki/CNCP_Telecommunications). Unlike those old towers that were very remote, now we have cellular systems all around us at an ever-increasing density.
Microwave Frequency bands in more detail: https://www.everythingrf.com/tech-resources/frequency-bands:
- L band: 1 to 2 GHz, 15 cm to 30 cm: https://www.everythingrf.com/community/l-band
Uses include: radar, satellite navigation (GPS, GLONASS), satellite broadcasting (DAB)
- S band: 2 to 4 GHz, 7.5 cm to 15 cm: https://www.everythingrf.com/community/s-band
Uses include communications, radar, 2.4 GHz band for Bluetooth, Wi-Fi, etc. NASA communication, Satellite Radio like XM. Distress signals. Traffic and weather data.
- C band: 4 to 8 GHz, 3.75 cm to 7.5 cm: https://www.everythingrf.com/community/c-band
- X band: 8 to 12 GHz, 25 mm to 37.5 cm: https://www.everythingrf.com/community/x-band
Uses include radar for weather, air traffic, maritime vessel traffic, defense tracking, vehicle speed, satellite, amateur radio and satellite operations.
- Ku band: 12 to 18 GHz, 16.7 mm to 25 mm https://www.everythingrf.com/community/ku-band
Uses include: satellite TV, VSAT on ships, Fixed Satellite Service (FSS), Free-To-Air (FTA), Direct Broadcast Satellite (DBS).
- K band: 18 to 26.5 GHz, 11.3 mm to 16.7 mm: https://www.everythingrf.com/community/k-band
Uses include: satellite, astronomical observations, radar.
- Ka band: 26.5 to 40 GHz, 5.0 mm to 11.3 mm: https://www.everythingrf.com/community/ka-band
- Q band: 33 to 50 GHz, 6.0 mm to 9.0 mm: https://www.everythingrf.com/community/q-band
Uses include: satellite, terrestrial microwave, radio astronomy, automotive radars
- U band: 40 to 60 GHz, 5.0 mm to 7.5 mm
- V band: 50 to 75 GHz, 4.0 mm to 6.0 mm: https://www.everythingrf.com/community/v-band
Uses include: point-to-point radio, 802.11ad wireless access systems (WiGig), high capacity millimeter wave communications
- W band: 75 to 110 GHz, 2.7 mm to 4.0 mm: https://www.everythingrf.com/community/w-band. Uses include: automotive radars, satellites, astronomy, defense, security
- F band: 90 to 110 GHz, 2.1 mm to 3.3 mm: https://www.everythingrf.com/tech-resources/frequency-bands/f-band
- D band: 110 to 170 GHz, 1.8 mm to 2.7 mm: https://www.everythingrf.com/tech-resources/frequency-bands/d-band
Applications of Millimeter Waves: https://www.rfpage.com/applications-of-millimeter-waves-future/: 5G uses millimeter waves between 24 and 86 GHz
- WLAN, small cell concept, could be used to connect base stations instead of fiber optic
- UHD video transmission
- IEEE 802.11ad WiGig standard for transmission between devices and computers
- Satellite communication
- Autonomous driving, detection radar in real time and low latency
- Millimeter wave human body scanners, e.g. https://www.rohde-schwarz.com/us/products/test-measurement/security-scanners/pg_overview_230800.html. 70 GHz to 80 GHz. Two types of body scanners were introduced, the “bad” one https://en.wikipedia.org/wiki/Backscatter_X-ray and the “good” one which also invades your privacy, but Time claims it is “safe”: https://en.wikipedia.org/wiki/Millimeter_wave_scanner, https://time.com/4909615/airport-body-scanners-safe/.
- High frequency radar. Radar has been miniaturized to a single chip and can be used for motion sensors, automatic doors, collision avoidance, intrusion alarm devices, speed detection.
- Virtual Reality devices
- Medical applications, e.g. experiments on treating acute pain
- Millimeter waves require line of sight communication. Atmospheric conditions interfere. So distances are short
Also: here is the millimeter-wave chip that scans your organs: https://techcrunch.com/2017/02/07/tiny-chip-looks-deep-inside-your-body-with-millimeter-wave-radiation/
What are microwaves for? All of the above, including radar, microwave ovens, communications, body scanners, smart meters.
Also, microwave weapons: https://taskandpurpose.com/army-microwave-weapon. Also see: https://en.wikipedia.org/wiki/Directed-energy_weapon
And microwaves are for Smart Cities: see https://canadianliberty.com/5g-overview/, https://technology.ihs.com/611104/5g-and-massive-iot and https://www.bbc.com/news/technology-48426481.
There are proven health issues with cellular technology: https://canadianliberty.com/cell-phone-radiation-studies-cancer-dna-damage-relevant-to-5g-plans/ and https://ntp.niehs.nih.gov/results/areas/cellphones/.
Comments, Conclusions, Arguments
The problems with cellular technology include both health and privacy.
What is the purpose of a Smart City loaded up with radar and scanning censors–that makes use of a 5G (or 6G) grid and of the Internet of Things? The purpose is clearly to monitor and collect data on everyone’s life: the products we buy and sell, the clothes we wear, the items we store and dispose of, our location, and our movements. What happens to the data collected by cell phones and from “autonomous” vehicles with their 5G radar systems?
The heating effect is one effect that illustrates the physicality of these signals especially if the devices are going to be in much closer proximity than old-fashioned microwave towers.
Privacy is about personal rights with respect to our bodies and personal space–our property rights–and our mental space also.
Multiple generations have been sold on the different stages of this technology as a way of life–they are immersed and invested in it through their careers and in their daily lives. Many seem to take it for granted that it’s harmless and that privacy doesn’t matter. Some science fiction has slickly sold us a glowing picture of convenient communications for human benefit. Instead, what is being built is a totalitarian technological prison with towers that are all-seeing, all-knowing and all-present. For an advocacy of the transhumanist “world brain” agenda of H. G. Wells and others, you can read A Brief History of the Future by globalist Jacques Attali (https://en.wikipedia.org/wiki/A_Brief_History_of_the_Future). It’s cybernetics, it’s technocracy, it’s Agenda 21.
I think a lot of people will quickly face up to the obvious problems with this over-the-top invasion of privacy and personal space–and the proven health issues with cellular technology. Let’s point out what is obviously wrong, what is documented, and the contradiction in having this insane transhumanist system of replacing God imposed on us in a supposedly free and democratic society.
Key Points – Electromagnetic Spectrum: RF, microwaves, cellular, WiFi, 4G, 5G and infrared — No Comments
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