The Ben Heck Show

Ben Heck's Essentials Series: Wireless Communications (6x45)

Fecha de emisión: Dic 09, 2016

To untangle Karen from her mess of wires the team discusses everything related to wireless communication! Learn the difference between ELF, SLF, ULF, VLF, LF, MF, HF UHF, and THF frequency bands and different technologies for electronics communication such as WIFI, xBee, Bluetooth, RFID, NFC, and mobile networks. Are you also bit by the technology bug: http://bit.ly/2hbkALB Ben goes over commonly used radio frequency bands. ELF, extremely low frequency (3-30Hz range), is generally used for long range communication like submarine use and maritime use. SLF, super low frequency (30-300Hz range), is still mostly maritime use. VLF, Very Low Frequency (3kHz-30kHz range), is still used for mostly radio navigation and maritime military use. LF, Low Frequency (30kHz-300kHz range), is still used for a lot of radio navigation but it’s also used for amateur radio and universal clock signals. MF, Medium Frequency (300kHz-3MHz range), is used for AM radio. HF, High Frequency (3MHz-30MHz range), is used for short wave radio, CB radio, RFID radar, and more amateur radio. VHF, Very High Frequency (30MHz -300MHz range), is used for FM broadcasts and TV broadcasts. UHF, 300MHz-3000 MHz, is used for TV, cell phones, and other consumer devices. SHF, Super High Frequency (3GHz-30GHz range), is used for WIFI and cellular technology as well as microwave transmitters. EHF, Extremely High Frequency (30GHz-300GHz range) is used for radio astronomy and the millimeter wave scanner used for airport security. THF, Tremendously High Frequency (300GHz-3000GHz range), is used for crazy experimental stuff like particle physics, medical imaging, atomic blasters, and things of that elk. The 2.4 GHz /5 GHz wireless range is usually expressed when referring to the 802.11 (a, b, g, and n) wireless standards. 2.4 GHz is a popular range for products with their own proprietary protocols. 2.4 GHz is the most common protocol with the XBee signal. XBee signals are a little slower than Bluetooth