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99% Invisible. 99% Invisible is a radio show and podcast produced and created by Roman Mars that focuses on design. [1] It began as a collaborative project between San Francisco public radio station KALW and the American Institute of Architects in San Francisco. PRX has distributed the show for broadcasting on a number of radio stations and as ...
Ten-code. Ten-codes, officially known as ten signals, are brevity codes used to represent common phrases in voice communication, particularly by US public safety officials and in citizens band (CB) radio transmissions. The police version of ten-codes is officially known as the APCO Project 14 Aural Brevity Code.[1]
Total harmonic distortion. The total harmonic distortion (THD or THDi) is a measurement of the harmonic distortion present in a signal and is defined as the ratio of the sum of the powers of all harmonic components to the power of the fundamental frequency. Distortion factor, a closely related term, is sometimes used as a synonym.
In Atlanta, an “off-the-grid” 24-hour streaming radio station is following Vaxelaire’s steps, with a studio built in a shipping container kicking off a nearly three-month experiment this spring.
Radio-frequency identification (RFID) uses electromagnetic fields to automatically identify and track tags attached to objects. An RFID system consists of a tiny radio transponder called a tag, a radio receiver, and a transmitter. When triggered by an electromagnetic interrogation pulse from a nearby RFID reader device, the tag transmits ...
The unit also features a removable button facepanel as an additional anti-theft measure. Many car audio systems (car radios) have a so-called 'radio code' number which needs to be entered after a power disconnection. This was introduced as a measure to deter theft of these devices. If the code is entered correctly, the radio is activated for use.
The famous red wagon is still one of the greatest gifts on earth — get it on sale right now, for only $59.
Beis is known for its chic, monochrome suitcases and travel accessories, and now is your chance to save 20% off. Shop the Beis early Black Friday sale ASAP.