All public logs

Combined display of all available logs of GNU Radio. You can narrow down the view by selecting a log type, the username (case-sensitive), or the affected page (also case-sensitive).

• 03:29, 31 December 2024 Jesternofool talk contribs uploaded a new version of File:Polar-discriminator-output-time-domain.png (Vertical axis was corrected.)
• 03:18, 31 December 2024 Jesternofool talk contribs uploaded File:Polar-discriminator-output-time-domain.png (The output of the polar discriminator is the frequency deviation of the input FM signal. FM broadcast stations in the US use deviation values between 75 kHz (the typical value) up to ~82 kHz (in some instances). By setting the "Gain" value in the Quadrature Demod block to samp_rate/(2*pi), the output will have amplitude values of the deviation of the FM carrier.)
• 03:18, 31 December 2024 Jesternofool talk contribs created page File:Polar-discriminator-output-time-domain.png (The output of the polar discriminator is the frequency deviation of the input FM signal. FM broadcast stations in the US use deviation values between 75 kHz (the typical value) up to ~82 kHz (in some instances). By setting the "Gain" value in the Quadrature Demod block to samp_rate/(2*pi), the output will have amplitude values of the deviation of the FM carrier.)
• 03:12, 31 December 2024 Jesternofool talk contribs uploaded File:FM-demod-with-quad-demod-block.png (Gnu Radio flowgraph showing FM demodulation of a FM broadcast station (USA) using the Quadrature Demodulation block.)
• 03:12, 31 December 2024 Jesternofool talk contribs created page File:FM-demod-with-quad-demod-block.png (Gnu Radio flowgraph showing FM demodulation of a FM broadcast station (USA) using the Quadrature Demodulation block.)
• 02:03, 31 December 2024 Jesternofool talk contribs uploaded File:Polar-discriminator-GRC-block-diagram.png (Gnu Radio Companion equivalent flowgraph of the "Quadrature Demod" block. This is a polar discriminator circuit. The input complex samples are split. One sample is sent to a Multiply block, while the second set are delayed and conjugated before being fed into the Multiply block. The output of the Multiply block will also be complex samples, except they are now the phase difference between consecutive samples. The Complex to Arg block calculates the actual phase, in radians, for each of these...)
• 02:03, 31 December 2024 Jesternofool talk contribs created page File:Polar-discriminator-GRC-block-diagram.png (Gnu Radio Companion equivalent flowgraph of the "Quadrature Demod" block. This is a polar discriminator circuit. The input complex samples are split. One sample is sent to a Multiply block, while the second set are delayed and conjugated before being fed into the Multiply block. The output of the Multiply block will also be complex samples, except they are now the phase difference between consecutive samples. The Complex to Arg block calculates the actual phase, in radians, for each of these...)
• 01:38, 31 December 2024 Jesternofool talk contribs uploaded File:Polar-Discriminator-Delay-Conjugate-Method.jpg (Block diagram of polar discriminator. The input complex samples are split. One sample goes straight to a multiplier. The second sample is delayed and conjugated (the imaginary component has its sign flipped), then input to the multiplier.)
• 01:38, 31 December 2024 Jesternofool talk contribs created page File:Polar-Discriminator-Delay-Conjugate-Method.jpg (Block diagram of polar discriminator. The input complex samples are split. One sample goes straight to a multiplier. The second sample is delayed and conjugated (the imaginary component has its sign flipped), then input to the multiplier.)
• 01:29, 31 December 2024 Jesternofool talk contribs uploaded File:Phase-change-constellation-diagram.jpg (Constellation diagram showing how frequency modulation will cause consecutive samples to change phase, as frequency is a change of phase over time.)
• 01:29, 31 December 2024 Jesternofool talk contribs created page File:Phase-change-constellation-diagram.jpg (Constellation diagram showing how frequency modulation will cause consecutive samples to change phase, as frequency is a change of phase over time.)
• 01:12, 14 July 2024 Jesternofool talk contribs uploaded File:Frequency-sink-properties-annotated.png (Properties of frequency sink utilized in impulse response flowgraph)
• 01:12, 14 July 2024 Jesternofool talk contribs created page File:Frequency-sink-properties-annotated.png (Properties of frequency sink utilized in impulse response flowgraph)
• 01:10, 14 July 2024 Jesternofool talk contribs uploaded File:LPF-properties-annotated.png (Low pass filter properties for impulse response flowgraph)
• 01:10, 14 July 2024 Jesternofool talk contribs created page File:LPF-properties-annotated.png (Low pass filter properties for impulse response flowgraph)
• 00:46, 14 July 2024 Jesternofool talk contribs uploaded File:LPF-filter-with-vector-source-flowgraph.png (Flowgraph of lowpass filter showing how to display the spectrum of its impulse response.)
• 00:46, 14 July 2024 Jesternofool talk contribs created page File:LPF-filter-with-vector-source-flowgraph.png (Flowgraph of lowpass filter showing how to display the spectrum of its impulse response.)
• 00:25, 14 July 2024 Jesternofool talk contribs uploaded File:Filter-impulse-response-spectrum.png (This is the spectrum of the impulse response of a low pass filter.)
• 00:25, 14 July 2024 Jesternofool talk contribs created page File:Filter-impulse-response-spectrum.png (This is the spectrum of the impulse response of a low pass filter.)
• 17:27, 23 May 2024 Jesternofool talk contribs uploaded File:Complex-mag.jpg (Diagram showing how the magnitude of a complex sample is calculated.)
• 17:27, 23 May 2024 Jesternofool talk contribs created page File:Complex-mag.jpg (Diagram showing how the magnitude of a complex sample is calculated.)
• 12:50, 11 May 2024 Jesternofool talk contribs uploaded File:ATSC04-Ch38.jpg (ATSC 1.0 spectrum and spectrogram. The spectral line on the left edge of the signal is the pilot tone.)
• 12:50, 11 May 2024 Jesternofool talk contribs created page File:ATSC04-Ch38.jpg (ATSC 1.0 spectrum and spectrogram. The spectral line on the left edge of the signal is the pilot tone.)
• 12:31, 11 May 2024 Jesternofool talk contribs uploaded File:ATSC-Ver3-Ch25-02.png (Spectrum and spectrogram of ATSC 3.0 signal. The portion of the signal seen to the right of the 3.0 signal is a ATSC 1.0 transmission. The pilot tone for that transmission is the spectral line on the right.)
• 12:31, 11 May 2024 Jesternofool talk contribs created page File:ATSC-Ver3-Ch25-02.png (Spectrum and spectrogram of ATSC 3.0 signal. The portion of the signal seen to the right of the 3.0 signal is a ATSC 1.0 transmission. The pilot tone for that transmission is the spectral line on the right.)
• 19:55, 13 April 2024 Jesternofool talk contribs created page FFT Low Pass Filter (Created page, added description, parameters, example, and source files.)
• 19:32, 13 April 2024 Jesternofool talk contribs uploaded File:NwrReceiver.jpg (NOAA Weather Radio (NWR) receiver, to include both frequency and time domain displays. This flowgraph demonstrates the FFT Low Pass Filter block.)
• 19:32, 13 April 2024 Jesternofool talk contribs created page File:NwrReceiver.jpg (NOAA Weather Radio (NWR) receiver, to include both frequency and time domain displays. This flowgraph demonstrates the FFT Low Pass Filter block.)
• 18:40, 13 April 2024 Jesternofool talk contribs uploaded File:Complex2ArgDemo.jpg (This flowgraph demodulates a FM broadcast station. It demonstrates using the "Complex to Arg" block. The blocks from the output of the lowpass filter to the output of the "Multiply Const" block are equivalent to the "Quadrature Demod" block.)
• 18:40, 13 April 2024 Jesternofool talk contribs created page File:Complex2ArgDemo.jpg (This flowgraph demodulates a FM broadcast station. It demonstrates using the "Complex to Arg" block. The blocks from the output of the lowpass filter to the output of the "Multiply Const" block are equivalent to the "Quadrature Demod" block.)
• 17:22, 13 April 2024 Jesternofool talk contribs uploaded File:MeasureFmSignalPower.grc (Flowgraph used to measure the signal-to-noise ratio (SNR) of a FM broadcast station. This flowgraph demonstrates a use of the Complex to Mag^2 block.)
• 17:22, 13 April 2024 Jesternofool talk contribs created page File:MeasureFmSignalPower.grc (Flowgraph used to measure the signal-to-noise ratio (SNR) of a FM broadcast station. This flowgraph demonstrates a use of the Complex to Mag^2 block.)
• 17:20, 13 April 2024 Jesternofool talk contribs uploaded File:ComplexMagSquaredSpectrum.grc (Flowgraph used to create a basic spectral display. This is used to demonstrate how a spectral display is created using the FFT and Complex to Mag^2 blocks.)
• 17:20, 13 April 2024 Jesternofool talk contribs created page File:ComplexMagSquaredSpectrum.grc (Flowgraph used to create a basic spectral display. This is used to demonstrate how a spectral display is created using the FFT and Complex to Mag^2 blocks.)
• 17:13, 13 April 2024 Jesternofool talk contribs uploaded File:ComplexMagSquaredSpectrum.jpg (Flowgraph used to create a basic spectral display. This demonstrates several blocks, including the FFT and Complex to Mag Squared blocks.)
• 17:13, 13 April 2024 Jesternofool talk contribs created page File:ComplexMagSquaredSpectrum.jpg (Flowgraph used to create a basic spectral display. This demonstrates several blocks, including the FFT and Complex to Mag Squared blocks.)
• 17:03, 13 April 2024 Jesternofool talk contribs uploaded File:Complex-to-Mag2-block-properties.png (Property window for the Complex to Mag Squared block.)
• 17:03, 13 April 2024 Jesternofool talk contribs created page File:Complex-to-Mag2-block-properties.png (Property window for the Complex to Mag Squared block.)
• 17:00, 13 April 2024 Jesternofool talk contribs uploaded File:Complex-to-Mag2-block.png (This is the GRC display of a Complex to Mag Squared block.)
• 17:00, 13 April 2024 Jesternofool talk contribs created page File:Complex-to-Mag2-block.png (This is the GRC display of a Complex to Mag Squared block.)
• 16:55, 13 April 2024 Jesternofool talk contribs uploaded File:Measure-signal-power-display.png (Display from the flowgraph used to measure the signal-to-noise ratio (SNR) of a FM broadcast station.)
• 16:55, 13 April 2024 Jesternofool talk contribs created page File:Measure-signal-power-display.png (Display from the flowgraph used to measure the signal-to-noise ratio (SNR) of a FM broadcast station.)
• 16:47, 13 April 2024 Jesternofool talk contribs uploaded File:MeasureFmSignalPower.jpg (This is a flowgraph that will calculate the signal-to-noise ratio (SNR) of a FM broadcast station using a RTL-SDR. This flowgraph demonstrates both measuring signal power and use of the '''Complex to Mag^2''' block.)
• 16:47, 13 April 2024 Jesternofool talk contribs created page File:MeasureFmSignalPower.jpg (This is a flowgraph that will calculate the signal-to-noise ratio (SNR) of a FM broadcast station using a RTL-SDR. This flowgraph demonstrates both measuring signal power and use of the '''Complex to Mag^2''' block.)
• 01:45, 13 April 2024 Jesternofool talk contribs uploaded File:PhaseShiftDemo.grc (This is the GRC file used to demonstrate the Phase Shift block.)
• 01:45, 13 April 2024 Jesternofool talk contribs created page File:PhaseShiftDemo.grc (This is the GRC file used to demonstrate the Phase Shift block.)
• 19:24, 12 April 2024 Jesternofool talk contribs uploaded File:Phase-shift-demo-display.png (This is the time domain (left) and constellation (Argand) diagram showing the phase shift of a complex sinusoid. The phase has been shifted +125 degrees (3π/4 radians).)
• 19:24, 12 April 2024 Jesternofool talk contribs created page File:Phase-shift-demo-display.png (This is the time domain (left) and constellation (Argand) diagram showing the phase shift of a complex sinusoid. The phase has been shifted +125 degrees (3π/4 radians).)
• 18:17, 12 April 2024 Jesternofool talk contribs uploaded File:PhaseShiftDemo.jpg (Demonstration of the "Phase Shift" block using a time domain (time sink) and constellation diagram.)
• 18:17, 12 April 2024 Jesternofool talk contribs created page File:PhaseShiftDemo.jpg (Demonstration of the "Phase Shift" block using a time domain (time sink) and constellation diagram.)