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The Fire TV Recast is a digital video recorder that works with an over-the-air antenna to record shows for later viewing on a Fire TV or an Amazon Echo Show device. [53] [54] It was announced in September 2018 and began shipping in the United States on November 14, 2018. [55] In August 2022, Amazon confirmed the discontinuation of the Fire TV ...
Roku's Voice Remote Pro makes a great upgrade for any Roku TV, with features like hands-free voice commands, a rechargeable battery and a headphone jack. (Photo: Roku)
Ambient backscatter [1] uses existing radio frequency signals, such as radio, television and mobile telephony, to transmit data without a battery or power grid connection. Each such device uses an antenna to pick up an existing signal and convert it into tens to hundreds of microwatts of electricity. [ 2 ]
A smart TV, also known as a connected TV (CTV), is a traditional television set with integrated Internet and interactive Web 2.0 features that allow users to stream music and videos, browse the internet, and view photos.
Antenna temperature (T ant) is a parameter that describes how much noise an antenna produces in a given environment. Antenna noise temperature is not the physical temperature of the antenna but rather an expression of the available noise power at the antenna flange. Moreover, an antenna does not have an intrinsic "antenna temperature ...
In a C-band antenna setup, the transmission frequencies are typically 3.7–4.2 GHz. By using a local oscillator frequency of 5.150 GHz the IF will be 950–1,450 MHz which is, again, in the receiver's IF tuning range.
The ambient light sensor of a Google Pixel 4a smartphone under a microscope. An ambient light sensor is a component in smartphones, notebooks, other mobile devices, automotive displays and LCD TVs. It is a photodetector that is used to sense the amount of ambient light present, and appropriately dim the device's screen to match it.
It is possible to also get a bad picture if the signal strength of the TV transmitter is too high. An attenuator inserted in the antenna lead-in wire may be used if the television receiver displays signs of overload in the RF front end. Strong out-of-band signals may also affect television reception and may require band-pass filters to reduce ...