FMeXtraFMeXtra is a deprecated in-band on-channel digital radio broadcasting technology created by Digital Radio Express. It was intended to allow a second all-digital signal to be simulcast with an existing analog FM radio station, offering a less noisy signal that would be particularly useful in urban environments where multipath distortion can seriously degrade analog FM transmissions. It can also support a second all-digital channel at the same frequency, allowing two channels to be broadcast by a single FM station.
Religious broadcastingReligious broadcasting, sometimes referred to as faith-based broadcasts, is the dissemination of television and/or radio content that intentionally has religious ideas, religious experience, or religious practice as its core focus. In some countries, religious broadcasting developed primarily within the context of public service provision (as in the UK), whilst in others, it has been driven more by religious organisations themselves (as in the United States).
L bandThe L band is the Institute of Electrical and Electronics Engineers (IEEE) designation for the range of frequencies in the radio spectrum from 1 to 2 gigahertz (GHz). This is at the top end of the ultra high frequency (UHF) band, at the lower end of the microwave range. In Europe, the Electronic Communications Committee (ECC) of the European Conference of Postal and Telecommunications Administrations (CEPT) has harmonized part of the L band (1452–1492 MHz), allowing individual countries to adopt this spectrum for terrestrial mobile/fixed communications networks supplemental downlink (MFCN SDL).
Internet radio deviceAn Internet radio device, also called network music player is a hardware device that is capable of receiving and playing streamed media from either Internet radio stations or a home network. Streaming media became mainstream with the advent of portable music players / MP3 player and the convenience of converting and compressing CD music into music file by the computer or the acquisition of products in such formats using on-line music stores like Amazon, iTunes, and 7digital. The network music player is connected to a home router.
Interference (communication)In telecommunications, an interference is that which modifies a signal in a disruptive manner, as it travels along a communication channel between its source and receiver. The term is often used to refer to the addition of unwanted signals to a useful signal. Common examples include: Electromagnetic interference (EMI) Co-channel interference (CCI), also known as crosstalk Adjacent-channel interference (ACI) Intersymbol interference (ISI) Inter-carrier interference (ICI), caused by doppler shift in OFDM modulation (multitone modulation).
