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KOST broadcasts three digital subchannels: KOST-HD1 is a digital version of KOST's analog signal. KOST-HD2 is an HD simulcast of the talk radio format heard on co-owned KFI (640 AM). From November 2013 until February 2015, KOST's HD3 signal relayed the syndicated Christian contemporary hit radio station Air1.
The ratio of power of the analog signal to the digital signal was initially standardized at 100:1 (−20 dBc), i.e., the digital signal power is 1% of the analog carrier power. This low power, plus the uniform, noise-like nature of the digital modulation, is what reduces its potential for co-channel interference with distant analog stations.
A digital signal controller (DSC) is a hybrid of microcontrollers and digital signal processors (DSPs). Like microcontrollers, DSCs have fast interrupt responses, offer control-oriented peripherals like PWMs and watchdog timers, and are usually programmed using the C programming language, although they can be programmed using the device's native assembly language.
The station began broadcasting an HD Radio digital signal in 2005. As of 2024, KKGO-FM broadcasts on four subchannels: KKGO-FM HD1 is a digital simulcast of the analog signal. KKGO-FM HD2 carries a classical music format branded as "K-Mozart" as a simulcast of KMZT (1260 AM)'s former format. On October 25, 2024, it flipped to Christmas music. [26]
Some suppliers also offer more sophisticated heating control using the radio teleswitch network. For example, Scottish Power 'Weathercall' and SSE's 'Total Heat Total Control' both dynamically vary the length of time storage heating is energised each night depending on the forecast temperature for the following day to help maintain a consistent ...
Mixed signal integrated circuit: the metal areas on the right-hand side are capacitors, on top of which are large output transistors; the left-hand side is occupied by the digital logic. A mixed-signal integrated circuit is any integrated circuit that has both analog circuits and digital circuits on a single semiconductor die.
The devices are easily programmable in C and aim at bridging the gap between conventional micro-controllers and FPGAs CEVA, Inc. produces and licenses three distinct families of DSPs. Perhaps the best known and most widely deployed is the CEVA-TeakLite DSP family, a classic memory-based architecture, with 16-bit or 32-bit word-widths and single ...
They are used to take periodic samples of an incoming signal, typically as a source of modulation for other components of the synthesizer. When a sample and hold circuit is plugged into a white noise generator the result is a sequence of random values, which - depending on the amplitude of modulation - can be used to provide subtle variations ...