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What is FEC in satellite receiver?
Forward error correction FEC gives the receiver the ability to correct errors without needing a reverse channel to request re-transmission of data, but at the cost of a fixed, higher forward channel bandwidth.
How does GNU Radio work?
GNU Radio performs all the signal processing. You can use it to write applications to receive data out of digital streams or to push data into digital streams, which is then transmitted using hardware. Analog hardware is then used to shift the signal to the desired centre frequency.
What is GNU Radio Interface?
GNU Radio is a free software development toolkit that provides signal processing blocks to implement software-defined radios and signal-processing systems. It can be used with external RF hardware to create software-defined radios, or without hardware in a simulation-like environment.
How do you calculate FEC?
so transmission data rate = customer information rate x 1/ (FEC rate). FEC rate is typically in the range 1/2 to 7/8 so the transmission data rate is always significantly more than the customer information rate.
What does GNU stand for?
GNU’s not Unix
GNU stands for GNU’s not Unix, which makes the term a recursive acronym (an acronym in which one of the letters stands for the acronym itself).
What is a radio dongle?
RTL-SDR is a very cheap ~$25 USB dongle that can be used as a computer based radio scanner for receiving live radio signals in your area (no internet required). The RTL-SDR is also sometimes referred to as RTL2832U, DVB-T SDR, DVB-T dongle, RTL dongle, or the “cheap software defined radio”.
How do you find the symbol rate for a satellite?
In digital television transmission the symbol rate calculation is: symbol rate in symbols per second = (Data rate in bits per second × 204) / (188 × bits per symbol) The 204 is the number of bytes in a packet including the 16 trailing Reed–Solomon error correction bytes.