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  • RFNoC DDC
    <!-- /dcs/local/share/gnuradio/grc/blocks/uhd_fpga_ddc.block.yml --> ;RFNoC Block Type
    868 bytes (122 words) - 01:35, 3 November 2023
  • RFNoC DUC
    <!-- /dcs/local/share/gnuradio/grc/blocks/uhd_fpga_duc.block.yml --> ;RFNoC Block Type
    871 bytes (122 words) - 01:42, 3 November 2023
  • RFNoC Radio
    ...tps://github.com/gnuradio/gnuradio/blob/main/gr-digital/grc/uhd_fpga_radio.block.yml --> ;RFNoC Block Type
    871 bytes (122 words) - 01:47, 3 November 2023
  • IQ Correction Manual Offset
    ...github.com/gnuradio/gnuradio/blob/main/gr-digital/grc/blocks_correctiq_man.block.yml --> ...eal and imaginary signal offset. Very similar to a complex add block, the block supports dynamic updating on the values
    996 bytes (142 words) - 01:33, 29 October 2023
  • X310 Device
    <!-- /dcs/local/share/gnuradio/grc/blocks/uhd_fpga_x310.block.yml --> ;RFNoC Block Type
    775 bytes (108 words) - 16:04, 31 October 2023
  • RFNoC Null Source Sink Block
    [[Category:Block Docs]] An RFNoC block that sinks data, and which generates a non-zero test signal.
    686 bytes (103 words) - 06:51, 27 September 2023
  • Filter Taps Loader
    <!-- /dcs/local/share/gnuradio/grc/blocks/variable_file_filter_taps.block.yml --> This block maps filter taps created with gr_filter_design to a variable
    976 bytes (144 words) - 13:09, 29 October 2023
  • Skeleton Block Doc
    : The sample rate for the block (default: samp_rate). ; Block definition
    786 bytes (103 words) - 15:10, 31 March 2024
  • IIO Attribute Sink
    ...ttps://github.com/gnuradio/gnuradio/blob/main/gr-digital/grc/iio_attr_sink.block.yml --> ; Block definition
    802 bytes (112 words) - 01:22, 29 October 2023
  • IIO Attribute Source
    ...ps://github.com/gnuradio/gnuradio/blob/main/gr-digital/grc/iio_attr_source.block.yml --> ; Block definition
    810 bytes (112 words) - 01:26, 29 October 2023
  • Alaw Audio Decoder
    [[Category:Block Docs]] This block performs alaw audio decoding. The input of this block is in 'bytes' and its output is of 'short' type.
    754 bytes (114 words) - 06:31, 31 January 2022
  • Stream Endpoint
    <!-- /dcs/local/share/gnuradio/grc/blocks/uhd_fpga_sep.block.yml --> ;RFNoC Block Type
    963 bytes (133 words) - 15:20, 30 October 2023
  • EVM Measurement
    .../github.com/gnuradio/gnuradio/blob/main/gr-digital/grc/digital_meas_evm_cc.block.yml --> ; Block definition
    879 bytes (120 words) - 21:25, 27 October 2023
  • ATSC Field Sync Checker
    [[Category:Block Docs]]
    42 bytes (5 words) - 03:23, 27 July 2019
  • ATSC Reed–Solomon Decoder
    [[Category:Block Docs]]
    42 bytes (5 words) - 03:24, 27 July 2019
  • ATSC Field Sync Mux
    [[Category:Block Docs]]
    42 bytes (5 words) - 03:23, 27 July 2019
  • ATSC Trellis Encoder
    [[Category:Block Docs]]
    42 bytes (5 words) - 03:24, 27 July 2019
  • ATSC Interleaver
    [[Category:Block Docs]]
    42 bytes (5 words) - 03:23, 27 July 2019
  • ATSC Viterbi Decoder
    [[Category:Block Docs]]
    42 bytes (5 words) - 03:24, 27 July 2019
  • ATSC Pad
    [[Category:Block Docs]]
    42 bytes (5 words) - 03:23, 27 July 2019
  • ATSC RS Encoder
    [[Category:Block Docs]]
    42 bytes (5 words) - 03:24, 27 July 2019
  • ATSC RX Filter
    [[Category:Block Docs]]
    42 bytes (5 words) - 03:24, 27 July 2019
  • ATSC Randomizer
    [[Category:Block Docs]]
    42 bytes (5 words) - 03:23, 27 July 2019
  • ATSC Deinterleaver
    [[Category:Block Docs]]
    42 bytes (5 words) - 03:22, 27 July 2019
  • Complex to Mag^2
    [[Category:Block Docs]]
    60 bytes (8 words) - 00:20, 27 June 2020
  • ATSC Depad
    [[Category:Block Docs]]
    42 bytes (5 words) - 03:23, 27 July 2019
  • ATSC Receive Pipeline
    [[Category:Block Docs]]
    42 bytes (5 words) - 03:23, 27 July 2019
  • ATSC Derandomizer
    [[Category:Block Docs]]
    42 bytes (5 words) - 03:23, 27 July 2019
  • ATSC Receiver FPLL
    [[Category:Block Docs]]
    42 bytes (5 words) - 03:24, 27 July 2019
  • ATSC Equalizer
    [[Category:Block Docs]]
    42 bytes (5 words) - 03:23, 27 July 2019
  • ATSC Receiver SYNC
    [[Category:Block Docs]]
    42 bytes (5 words) - 03:24, 27 July 2019
  • Documentation Upgrade Working Group
    === How will block docs be different between 3.x and 4.0? === === Create new process / work flow to generate user-friendly block docs ===
    2 KB (314 words) - 15:32, 3 February 2024
  • RFNoC Fast Add-Subtract Block
    <!-- /dcs/local/share/gnuradio/grc/blocks/uhd_rfnoc_addsub.block.yml --> RFNoC AddSub Block:<br>
    939 bytes (135 words) - 15:37, 1 November 2023
  • Nop
    [[Category:Block Docs]] This block does nothing. Used for testing only. Whatever input goes inside, doesn't co
    611 bytes (93 words) - 09:55, 24 February 2022
  • User vs Developer Documentation
    ...block, and the usage manual) and the Developer Documentation (i.e. Doxygen docs)? * Split up into two parts: the one-wiki-page-per-block and the usage manual (both will live in the Wiki)
    2 KB (337 words) - 18:15, 7 March 2019
  • IIO Attribute Updater
    <!-- /dcs/local/share/gnuradio/grc/blocks/iio_attr_updater.block.yml --> ; Block definition
    788 bytes (107 words) - 19:10, 31 October 2023
  • Pad Source
    [[Category:Block Docs]] Used as an input to a hierarchical block (block that is made up of other blocks).
    669 bytes (107 words) - 09:04, 21 January 2022
  • Pad Sink
    [[Category:Block Docs]] Used when specifying the outputs of a hierarchical block.
    636 bytes (100 words) - 09:04, 21 January 2022
  • CC Decoder Definition
    [[Category:Block Docs]] ...currently seem to be no docs for this block. If you know how to use this block, please fill out and improve this page.
    1 KB (176 words) - 11:48, 7 October 2023
  • Newbie Guide to GNU Radio
    ...sents a complete course from introductory concepts to intricate details of block programming. == Block docs ==
    1 KB (199 words) - 19:26, 6 June 2021
  • UHD: USRP Async Msg Source
    [[Category:Block Docs]] '''You probably don't need to use this block.'''
    755 bytes (117 words) - 01:11, 19 May 2020
  • Interleaved Stream Decimator
    ...ithub.com/gnuradio/gnuradio/blob/main/gr-digital/grc/filter_ival_decimator.block.yml --> This block will directly decimate an incoming stream made up of the specified complex
    1 KB (164 words) - 01:30, 29 October 2023
  • Remove DC Spike
    This block to removes the center frequency IQ DC spike with an IIR filter. <code>Added There are no parameters for this block.
    776 bytes (105 words) - 12:30, 14 April 2021
  • RFNoC Keep One in N Block
    <!-- /dcs/local/share/gnuradio/grc/blocks/uhd_rfnoc_keep_one_in_n.block.yml --> ; Block definition
    926 bytes (134 words) - 00:24, 2 November 2023
  • Message Meta Value to Pair
    .../github.com/gnuradio/gnuradio/blob/main/gr-digital/grc/blocks_meta_to_pair.block.yml --> This block converts a metadata dictionary item to a pmt pair that is compatible with o
    1 KB (160 words) - 01:36, 29 October 2023
  • Variable
    [[Category:Block Docs]] ...iable in the parameter field of another block simply by using the Variable Block's ID.
    1 KB (152 words) - 14:43, 4 April 2024
  • Complex Conjugate
    [[Category:Block Docs]] This block converts the input into its [https://en.wikipedia.org/wiki/Complex_conjugat
    1 KB (166 words) - 09:59, 25 August 2022
  • Soapy PLUTO Sink
    <!-- /dcs/local/share/gnuradio/grc/blocks/soapy_plutosdr_sink.block.yml --> ; Block definition
    1,008 bytes (141 words) - 21:55, 3 November 2023
  • Goertzel
    [[Category:Block Docs]] As this is a basic template, it's also in the [[:Category:Stub_Docs|"Stub Docs category"]]. Please improve it.
    1 KB (173 words) - 16:05, 20 August 2019
  • Quantizer
    [[Category:Block Docs]] Here is the flowgraph implementation of this hierarchical block:
    806 bytes (100 words) - 21:58, 7 December 2020
  • RFNoC Switchboard Block
    <!-- /dcs/local/share/gnuradio/grc/blocks/uhd_rfnoc_switchboard.block.yml --> The Switchboard Block is an RFNoC block that routes any single input to any
    1 KB (182 words) - 15:16, 2 November 2023
  • Soapy PLUTO Source
    <!-- /dcs/local/share/gnuradio/grc/blocks/soapy_plutosdr_source.block.yml --> ; Block definition
    1 KB (144 words) - 23:52, 3 November 2023
  • IIO Device Source
    <!-- /dcs/local/share/gnuradio/grc/blocks/iio_device_source.block.yml --> ; Block definition
    1,007 bytes (137 words) - 19:54, 31 October 2023
  • Soapy LimeSDR Sink
    <!-- /dcs/local/share/gnuradio/grc/blocks/soapy_limesdr_sink.block.yml --> ; Block definition
    1 KB (149 words) - 20:45, 3 November 2023
  • Soapy BladeRF Sink
    <!-- /dcs/local/share/gnuradio/grc/blocks/soapy_bladerf_sink.block.yml --> ; Block definition
    1 KB (148 words) - 20:08, 3 November 2023
  • RFNoC Fast Fourier Transform (FFT) Block
    <!-- /dcs/local/share/gnuradio/grc/blocks/uhd_rfnoc_fft.block.yml --> ;Block Args
    1 KB (155 words) - 20:35, 1 November 2023
  • Soapy LimeSDR Source
    <!-- /dcs/local/share/gnuradio/grc/blocks/soapy_limesdr_source.block.yml --> ; Block definition
    1 KB (149 words) - 21:29, 3 November 2023
  • Soapy BladeRF Source
    <!-- /dcs/local/share/gnuradio/grc/blocks/soapy_bladerf_source.block.yml --> ; Block definition
    1 KB (149 words) - 20:14, 3 November 2023
  • Frequency shift
    [[Category:Block Docs]] ...enience wrapper around using a rotator block for frequency shifting. This block obfuscates the 2*Pi*freq/samp_rate phase_inc field and calculation, and onl
    781 bytes (119 words) - 08:25, 24 August 2022
  • SigMF Sink (Minimal)
    <!-- /dcs/local/share/gnuradio/grc/blocks/blocks_sigmf_sink_minimal.block.yml --> ; Block definition
    1 KB (149 words) - 00:56, 30 October 2023
  • Not
    [[Category:Block Docs]] This flowgraph shows the Not block to invert a square wave signal.
    229 bytes (33 words) - 14:34, 29 October 2019
  • Soapy HackRF Sink
    <!-- /dcs/local/share/gnuradio/grc/blocks/soapy_hackrf_sink.block.yml --> ; Block definition
    1 KB (148 words) - 20:29, 3 November 2023
  • RFNoC Vector IIR Block
    <!-- /dcs/local/share/gnuradio/grc/blocks/uhd_rfnoc_vector_iir.block.yml --> ;Block Args
    1 KB (161 words) - 14:13, 29 October 2023
  • Second Order Distortion
    [[Category:Block Docs]] Hierarchical block for second order Distortion.
    1 KB (159 words) - 14:16, 20 August 2019
  • Third Order Distortion
    [[Category:Block Docs]] Hierarchical block for third order Distortion.
    1 KB (159 words) - 14:24, 20 August 2019
  • HDLC Deframer
    [[Category:Block Docs]] ...outputs PDU binary blobs. Frames which do not pass CRC are rejected. This block also unstuffs the bits in the HDLC frame.
    976 bytes (149 words) - 14:50, 5 October 2023
  • Cvsd encoder
    [[Category:Block Docs]] ...o have an example flowgraph showing how the block might be used, for every block, and the flowgraphs will live in the git repo.
    519 bytes (80 words) - 06:50, 19 January 2022
  • Standard Squelch
    [[Category:Block Docs]] This hierarchical block doesn't have proper documentation
    1 KB (159 words) - 16:36, 23 August 2019
  • IIO Device Sink
    <!-- /dcs/local/share/gnuradio/grc/blocks/iio_device_sink.block.yml --> ; Block definition
    1 KB (142 words) - 19:44, 31 October 2023
  • FEC Extended Async Encoder
    [[Category:Block Docs]] We are missing info on this block. Please help us remedy to that.
    847 bytes (128 words) - 19:49, 21 December 2021
  • Xlating low pass filter
    [[Category:Block Docs]]
    133 bytes (24 words) - 19:05, 3 April 2024
  • RFNoC Moving Average Block
    <!-- /dcs/local/share/gnuradio/grc/blocks/uhd_rfnoc_moving_avg.block.yml --> of this block is the sum of the SUM_LENGTH most recent input values
    1 KB (188 words) - 12:53, 2 November 2023
  • Map
    [[Category:Block Docs]] This block maps an incoming signal to the value in the map. The block expects that the incoming signal has a maximum value of len(map)-1.
    1,005 bytes (164 words) - 09:45, 26 January 2022
  • RFNoC Tx Streamer
    <!-- /dcs/local/share/gnuradio/grc/blocks/uhd_rfnoc_tx_streamer.block.yml --> ; Block definition
    1 KB (142 words) - 17:02, 2 November 2023
  • SigMF Source (Minimal)
    <!-- /dcs/local/share/gnuradio/grc/blocks/blocks_sigmf_source_minimal.block.yml --> This block is essentially just a File Source with some SigMF specific documentation.
    2 KB (271 words) - 00:11, 30 October 2023
  • Freq. Selective IQ Correction
    [[Category:Block Docs]] We don't have much documentation about this block, please help us remedy that.
    1,020 bytes (147 words) - 14:12, 11 September 2019
  • Soapy HackRF Source
    <!-- /dcs/local/share/gnuradio/grc/blocks/soapy_hackrf_source.block.yml --> ; Block definition
    1 KB (157 words) - 20:37, 3 November 2023
  • Amplitude Balance
    [[Category:Block Docs]] Hierarchical block to correct IQ imbalance in a complex input.
    958 bytes (141 words) - 16:52, 24 July 2019
  • RFNoC Graph (Device)
    <!-- /dcs/local/share/gnuradio/grc/blocks/uhd_rfnoc_graph.block.yml --> ; Block definition
    1,001 bytes (132 words) - 00:18, 2 November 2023
  • Note
    [[Category:Block Docs]] ...w on the flowgraph if the View -> 'Show Block Comments' is checked. If the block is disabled, the comment will not be shown.
    767 bytes (128 words) - 01:51, 18 November 2020
  • Subtract
    [[Category:Block Docs]] This flowgraph illustrates the use of a Subtract Block as a logic inverter for a float value:<br>
    586 bytes (78 words) - 16:30, 23 October 2019
  • Soapy AirspyHF Source
    <!-- /dcs/local/share/gnuradio/grc/blocks/soapy_airspyhf_source.block.yml --> ; Block definition
    1 KB (159 words) - 19:20, 3 November 2023
  • RFNoC Digital Upconverter Block
    <!-- /dcs/local/share/gnuradio/grc/blocks/uhd_rfnoc_duc.block.yml --> ;Block Args
    1 KB (160 words) - 15:25, 1 November 2023
  • RFNoC Log-Power Block
    <!-- /dcs/local/share/gnuradio/grc/blocks/uhd_rfnoc_logpwr.block.yml --> This block takes in signed 16-bit complex samples and computes an
    1 KB (167 words) - 13:31, 30 October 2023
  • Short To Char
    [[Category:Block Docs]] This block strips off the least significant byte from the short value.
    871 bytes (136 words) - 16:35, 20 August 2019
  • RFNoC Digital Downconverter Block
    <!-- /dcs/local/share/gnuradio/grc/blocks/uhd_rfnoc_ddc.block.yml --> ;Block Args
    1 KB (160 words) - 14:23, 1 November 2023
  • Endian Swap
    [[Category:Block Docs]] ...o have an example flowgraph showing how the block might be used, for every block, and the flowgraphs will live in the git repo.
    1 KB (163 words) - 08:16, 6 September 2022
  • Complex to Arg
    This block takes in a complex stream and outputs each complex value's arg (a.k.a. arct ...ming an input of <math>c[n] = r[n] + i[n]j</math>, then the output of this block corresponds to <math>arctan(i[n]/r[n])</math>.
    1 KB (200 words) - 18:56, 13 April 2024
  • Tag Gate
    [[Category:Block Docs]] Use this block to stop tags from propagating.
    1 KB (157 words) - 18:04, 20 August 2019
  • Probe Rate
    [[Category:Block Docs]] ...t (how many items/samples are flowing through per second). Note that this block outputs a message, you will need to use a [[Message Debug]] to display the
    1 KB (199 words) - 17:46, 29 November 2023
  • Magnitude and Phase To Complex
    [[Category:Block Docs]] ...o have an example flowgraph showing how the block might be used, for every block, and the flowgraphs will live in the git repo.
    1 KB (169 words) - 12:42, 6 September 2023
  • Binary Slicer
    [[Category:Block Docs]] ...inary Slicer block used to change the float output of the Quadrature Demod block into a binary 1 or zero, depending on whether the received tone is high or
    684 bytes (99 words) - 00:25, 29 October 2019
  • Fast Multiply Const
    [[Category:Block Docs]] ...ut by a '''scalar''' constant. The "Fast" refers to the performance of the block.
    1 KB (199 words) - 17:37, 30 October 2019
  • FFT Root Raised Cosine Filter
    ; Block definition [[Category:Stub Docs]]
    955 bytes (132 words) - 23:46, 26 October 2023
  • Variable to Message
    This block will monitor a variable and, when it changes, generate a message pair. ; Block definition
    852 bytes (121 words) - 14:09, 10 August 2022
  • Soapy SDRPlay Source
    <!-- /dcs/local/share/gnuradio/grc/blocks/soapy_sdrplay_source.block.yml --> ; Block definition
    1 KB (176 words) - 21:43, 3 November 2023
  • Detect Peak
    [[Category:Block Docs]] Detect the peak of a signal. If a peak is detected, this block outputs a 1, or it outputs 0's.
    2 KB (267 words) - 02:11, 2 August 2023
  • Phase Noise Generator
    [[Category:Block Docs]] Hierarchical block for a phase noise generator.
    1 KB (163 words) - 14:35, 20 August 2019
  • Multiply Conjugate
    [[Category:Block Docs]] ...o have an example flowgraph showing how the block might be used, for every block, and the flowgraphs will live in the git repo.
    781 bytes (115 words) - 15:46, 23 August 2019
  • Complex To Real
    [[Category:Block Docs]]
    135 bytes (17 words) - 04:24, 21 July 2019
  • Probe Signal
    [[Category:Block Docs]] Use with the [[Function Probe]] block, in order to take samples from a stream and write them to a variable.
    865 bytes (132 words) - 15:19, 31 July 2019
  • Complex To Mag Phase
    [[Category:Block Docs]] ; Block definition
    702 bytes (99 words) - 13:33, 18 March 2021
  • GSM full-rate Audio Decoder
    ; Block definition [[Category:Block Docs]]
    621 bytes (81 words) - 19:21, 10 December 2020
  • GSM full-rate Audio Encoder
    ; Block definition [[Category:Block Docs]]
    621 bytes (81 words) - 19:17, 10 December 2020
  • Probe Signal Vector
    [[Category:Block Docs]] Use with the [[Function Probe]] block. Available functions to probe: level()
    1 KB (194 words) - 09:23, 5 September 2019
  • Symbol Inner Interleaver
    [[Category:Block Docs]] One block is 12 groups x 126 datawords = 1512 datawords.
    1 KB (170 words) - 14:15, 30 November 2020
  • Complex to Mag
    [[Category:Block Docs]] This flowgraph shows how to use the Complex to Mag block to demodulate an AM signal. This is a working AM broadcast band receiver.
    334 bytes (51 words) - 00:36, 30 October 2019
  • Virtual Sink
    [[Category:Block Docs]] ...k, this is essentially the same as drawing a wire between two blocks. This block can be useful for tidying up a complex flowgraph.
    915 bytes (145 words) - 05:43, 20 January 2022
  • POLAR code Configurator
    [[Category:Block Docs]] This block serves as an interface to the underlying Python functions for channel const
    1 KB (149 words) - 15:04, 7 December 2020
  • Abs
    [[Category:Block Docs]] [[File:abs-block.png|100px]]
    1 KB (163 words) - 09:21, 25 August 2022
  • AM Demod
    [[Category:Block Docs]] Generalized AM demodulation hierarchical block with audio filtering.
    1 KB (171 words) - 00:15, 27 October 2019
  • File Descriptor Sink
    [[Category:Block Docs]] ...o have an example flowgraph showing how the block might be used, for every block, and the flowgraphs will live in the git repo.
    809 bytes (119 words) - 16:10, 20 August 2019
  • Bit Inner Deinterleaver
    [[Category:Block Docs]] bit deinterleaver block size is 126.
    861 bytes (130 words) - 14:18, 30 November 2020
  • RFNoC Replay Msg Push Button
    <!-- /dcs/local/share/gnuradio/grc/blocks/uhd_msgpushbutton.block.yml --> This block creates a variable push button that creates a dictionary message when press
    2 KB (244 words) - 13:23, 3 November 2023
  • Probe Density
    [[Category:Block Docs]] This block maintains a running average of the input stream and makes it available as a
    1 KB (208 words) - 09:15, 5 September 2019
  • Null Sink
    [[Category:Block Docs]] The Detector, Mark, and Space outputs of the RTTY Demod block are unused, so they are connected to Null Sink blocks to satisfy the requir
    682 bytes (101 words) - 17:54, 28 December 2019
  • Multiply by Tag Value
    [[Category:Block Docs]] ...ultiplied by this value until a new tag with an update value is found. The block starts with a value of '1.0' for the multiplier constant.
    1 KB (220 words) - 11:38, 31 January 2022
  • Virtual Source
    [[Category:Block Docs]] ...k, this is essentially the same as drawing a wire between two blocks. This block can be useful for tidying up a complex flowgraph.
    909 bytes (145 words) - 05:43, 20 January 2022
  • RFNoC Fosphor Block
    <!-- /dcs/local/share/gnuradio/grc/blocks/uhd_rfnoc_fosphor.block.yml --> RFNoC Fosphor Block:<br>
    2 KB (224 words) - 23:58, 1 November 2023
  • Transport Framing Encoder
    [[Category:Block Docs]] ...o have an example flowgraph showing how the block might be used, for every block, and the flowgraphs will live in the git repo.
    1 KB (170 words) - 13:28, 11 September 2019
  • Char To Short
    [[Category:Block Docs]] ...ck multiplies the stream by 256, compared to the regular [[Char To Float]] block. Note how the signal source is generating random numbers between 0 and 128
    453 bytes (63 words) - 04:07, 21 July 2019
  • IShort To Complex
    [[Category:Block Docs]] ; Block definition
    1 KB (144 words) - 07:03, 5 August 2022
  • PDU to Tagged Stream
    [[Category:Block Docs]] <b>Note for 3.10</b> This block has been moved from gr-blocks to gr-pdu, which causes a name change of the
    1 KB (196 words) - 14:29, 27 January 2022
  • Stream to Tagged Stream
    [[Category:Block Docs]] All this block does is add length tags in regular intervals. It can be used to connect a r
    1 KB (234 words) - 15:11, 7 December 2020
  • LDPC Generator Matrix
    [[Category:Block Docs]] This block creates a LDPC Generator Matrix variable.
    1 KB (184 words) - 13:57, 3 December 2020
  • Struct Variable
    [[Category:Block Docs]] ...o have an example flowgraph showing how the block might be used, for every block, and the flowgraphs will live in the git repo.
    814 bytes (130 words) - 14:45, 11 September 2019
  • Parameter
    [[Category:Block Docs]] ...ock. If you don't care about command line arguments, see the [[Variable]] Block.
    1 KB (179 words) - 06:37, 7 June 2022
  • Float To Complex
    [[Category:Block Docs]]
    161 bytes (21 words) - 04:33, 21 July 2019
  • SISO
    [[Category:Block Docs]] ; Block Size (''R'')
    1 KB (189 words) - 13:57, 6 September 2019
  • And Const
    [[Category:Block Docs]] This flowgraph shows the And Const block to invert a square wave signal.
    478 bytes (67 words) - 14:26, 29 October 2019
  • Swap IQ
    This block will transpose the I and Q channels (swap I and Q) to correct for spectrall ; Block definition
    956 bytes (134 words) - 00:27, 15 April 2021
  • Phase Mod
    [[Category:Block Docs]] ...o have an example flowgraph showing how the block might be used, for every block, and the flowgraphs will live in the git repo.
    982 bytes (138 words) - 04:53, 21 July 2019
  • File Descriptor Source
    [[Category:Block Docs]] ...o have an example flowgraph showing how the block might be used, for every block, and the flowgraphs will live in the git repo.
    860 bytes (125 words) - 16:10, 20 August 2019
  • Null Source
    [[Category:Block Docs]] ...urce of constant values other than zero, try using the [[Constant Source]] block.
    819 bytes (122 words) - 17:29, 19 July 2022
  • Ctrlport Complex Probe
    [[Category:Block Docs]] ...o have an example flowgraph showing how the block might be used, for every block, and the flowgraphs will live in the git repo.
    853 bytes (129 words) - 23:59, 17 August 2019
  • Copy
    [[Category:Block Docs]] ...(default), this block copies its input to its output. When disabled, this block drops its input on the floor.
    2 KB (265 words) - 06:49, 22 February 2022
  • Phase Balance
    [[Category:Block Docs]] There is no documentation available for this block so if you have any info on it, please add it.
    1 KB (184 words) - 16:00, 4 September 2019
  • GMSK Mod
    [[Category:Block Docs]] Hierarchical block for Gaussian Minimum Shift Key (GMSK) modulation.
    859 bytes (118 words) - 14:54, 2 August 2021
  • Feed Forward AGC
    [[Category:Block Docs]] ...o have an example flowgraph showing how the block might be used, for every block, and the flowgraphs will live in the git repo.
    1 KB (191 words) - 16:08, 24 July 2019
  • Constant Source
    [[Category:Block Docs]] This flowgraph shows the use of a Constant Source and an XOR logic block to invert the input square wave.
    514 bytes (72 words) - 23:00, 27 December 2019
  • Trellis Encoder
    [[Category:Block Docs]] ; Block length (''R'')
    1 KB (199 words) - 14:42, 6 September 2019
  • Energy Descramble
    [[Category:Block Docs]] Block size is 188 bytes.
    802 bytes (113 words) - 14:26, 30 November 2020
  • Function Probe
    [[Category:Block Docs]] ...variable. To poll a stream for a level, use this with the [[Probe Signal]] block.
    1 KB (199 words) - 12:21, 1 November 2020
  • QT GUI Sink
    [[Category:Block Docs]] ...ets (e.g. window type) that are usually only accessible either through the block parameters or by middle-clicking the window while it's running.
    465 bytes (70 words) - 03:12, 15 July 2019
  • Multiply
    [[Category:Block Docs]] ; Block definition
    840 bytes (115 words) - 00:21, 30 October 2019
  • Keep M in N
    [[Category:Block Docs]] : Number of items to take in block of items
    1 KB (241 words) - 13:09, 6 August 2023
  • Stream to Vec Decim
    [[Category:Block Docs]] This Heir block converts the input stream to a vector, then decimate the vector stream to a
    1 KB (176 words) - 17:44, 20 August 2019
  • Energy Dispersal
    [[Category:Block Docs]] Block size is 188 bytes.
    810 bytes (116 words) - 00:43, 1 December 2020
  • UChar To Float
    [[Category:Block Docs]] ; Block definition
    750 bytes (119 words) - 16:34, 11 April 2023
  • Exponentiate Const Int
    [[Category:Block Docs]] Exponentiates a complex stream with an integer exponent. This block raises a complex stream to an integer exponent.
    1 KB (223 words) - 08:45, 1 October 2019
  • Simple Squelch
    [[Category:Block Docs]] Simple squelch block based on average signal power and threshold in dB. The output equals the in
    1 KB (182 words) - 13:16, 19 January 2022
  • FEC Extended Tagged Decoder
    This block decodes an unpacked stream using a variety of Decoder Definition blocks, su : The Maximum Transmission Unit (MTU) of the input frame that the block will be able to process. Specified in bytes and defaults to 1500.
    1 KB (162 words) - 00:54, 27 May 2023
  • Constellation Encoder
    [[Category:Block Docs]] ...o have an example flowgraph showing how the block might be used, for every block, and the flowgraphs will live in the git repo.
    1 KB (186 words) - 13:56, 3 March 2022
  • CtrlPort Monitor
    [[Category:Block Docs]] ...o have an example flowgraph showing how the block might be used, for every block, and the flowgraphs will live in the git repo.
    876 bytes (132 words) - 23:59, 17 August 2019
  • FEC Extended Tagged Encoder
    This block encodes an unpacked stream using a variety of Encoder Definition blocks, su : The Maximum Transmission Unit (MTU) of the input frame that the block will be able to process. Specified in bytes and defaults to 1500.
    1 KB (171 words) - 23:37, 26 May 2023
  • RFNoC Rx Streamer
    <!-- /dcs/local/share/gnuradio/grc/blocks/uhd_rfnoc_rx_streamer.block.yml --> ; Block definition
    1 KB (170 words) - 14:27, 2 November 2023
  • Stream to Streams
    [[Category:Block Docs]] ...o have an example flowgraph showing how the block might be used, for every block, and the flowgraphs will live in the git repo.
    1 KB (173 words) - 17:47, 20 August 2019
  • CtrlPort Performance Monitor
    [[Category:Block Docs]] ...o have an example flowgraph showing how the block might be used, for every block, and the flowgraphs will live in the git repo.
    887 bytes (134 words) - 00:00, 18 August 2019
  • RMS
    [[Category:Block Docs]] ; Block definition
    789 bytes (103 words) - 12:57, 19 December 2021
  • Ctrlport Probe PSD
    [[Category:Block Docs]] ...o have an example flowgraph showing how the block might be used, for every block, and the flowgraphs will live in the git repo.
    1 KB (153 words) - 00:01, 18 August 2019
  • SISO Combo
    [[Category:Block Docs]] ; Block Size (''R'')
    1 KB (207 words) - 13:56, 6 September 2019
  • Streams to Stream
    [[Category:Block Docs]] ...o have an example flowgraph showing how the block might be used, for every block, and the flowgraphs will live in the git repo.
    1 KB (172 words) - 17:33, 20 August 2019
  • Vector Insert
    [[Category:Block Docs]] ...o have an example flowgraph showing how the block might be used, for every block, and the flowgraphs will live in the git repo.
    919 bytes (137 words) - 13:55, 28 August 2019
  • Float To UChar
    [[Category:Block Docs]]
    147 bytes (19 words) - 04:32, 21 July 2019
  • BER Curve Gen.
    [[Category:Block Docs]] This is a hier block that... (someone fill this in)
    1 KB (179 words) - 00:24, 19 April 2020
  • Skip Head
    [[Category:Block Docs]] ...o have an example flowgraph showing how the block might be used, for every block, and the flowgraphs will live in the git repo.
    1 KB (184 words) - 09:58, 24 February 2022
  • PDU Remove
    [[Category:Block Docs]] <b>Note for 3.10</b> This block has been moved from gr-blocks to gr-pdu, which causes a name change of the
    1 KB (177 words) - 14:22, 27 January 2022
  • Descrambler
    [[Category:Block Docs]] Descramble an input stream using an LFSR. This block works on the LSB only of the input data stream, i.e., on an "unpacked binar
    1,015 bytes (155 words) - 00:22, 18 August 2019
  • Differential Decoder
    [[Category:Block Docs]] ; Block definition
    932 bytes (137 words) - 05:38, 11 August 2022
  • Differential Encoder
    [[Category:Block Docs]] ; Block definition
    932 bytes (136 words) - 17:32, 10 August 2022
  • Short To Float
    [[Category:Block Docs]] ; Block definition
    763 bytes (100 words) - 02:16, 10 December 2020
  • Dummy Encoder Definition
    [[Category:Block Docs]] ...o have an example flowgraph showing how the block might be used, for every block, and the flowgraphs will live in the git repo.
    1 KB (194 words) - 13:21, 25 January 2022
  • LDPC Encoder Definition
    [[Category:Block Docs]] This block can be used to create an LDPC Encoder object that can then be used in other
    1 KB (205 words) - 10:34, 6 June 2022
  • QT GUI App Background
    This block sets the application window background to the specified graphic and/or colo ; Block definition
    1 KB (142 words) - 12:35, 16 November 2020
  • Time Delta
    ...dd_system_time block). This is useful for benchmarking PDU operations. The block also maintains running estimates of mean and variance, accessible by getter ; Block definition
    1 KB (190 words) - 14:53, 1 November 2022
  • Take/Skip To PDU
    The Take/Skip To PDU block can be used to sample a streaming input and convert it to a PDU message for ; Block definition
    1 KB (151 words) - 14:41, 14 December 2021
  • Stretch
    [[Category:Block Docs]] ...o have an example flowgraph showing how the block might be used, for every block, and the flowgraphs will live in the git repo.
    926 bytes (135 words) - 14:24, 11 September 2019
  • Viterbi Decoder
    [[Category:Block Docs]] ; Block size
    1 KB (143 words) - 14:21, 30 November 2020
  • Bit Inner Interleaver
    [[Category:Block Docs]] bit interleaver block size is 126.
    946 bytes (140 words) - 02:50, 3 December 2020
  • Rail
    [[Category:Block Docs]] ...o have an example flowgraph showing how the block might be used, for every block, and the flowgraphs will live in the git repo.
    1 KB (153 words) - 16:39, 20 August 2019
  • Message Pair to Var
    <p>This block converts an input message pair to the value of a gnuradio variable.</p> ...or this block, <name> is ignored. The variable to be set is specified as a block parameter. More information on PMTs in general can be found in [[Polymorphi
    1 KB (192 words) - 12:33, 5 May 2023
  • Dummy Decoder Definition
    [[Category:Block Docs]] ...o have an example flowgraph showing how the block might be used, for every block, and the flowgraphs will live in the git repo.
    934 bytes (144 words) - 00:27, 18 August 2019
  • Mute
    [[Category:Block Docs]] output = input or zero if muted. Similar to [[Selector]] block.
    905 bytes (132 words) - 16:41, 13 December 2020
  • Tag Debug
    [[Category:Block Docs]] This block collects all tags sent to it on all input ports and displays them to stdout
    2 KB (288 words) - 11:15, 1 February 2022
  • Viterbi
    [[Category:Block Docs]] ; Block size (''R'')
    1 KB (212 words) - 14:41, 6 September 2019
  • Stream Mux
    [[Category:Block Docs]] Stream muxing block to multiplex many streams into one with a specified format.
    1 KB (211 words) - 14:59, 29 October 2020
  • Convolutional Interleaver
    [[Category:Block Docs]] : size of a block.
    859 bytes (118 words) - 00:50, 1 December 2020
  • CODEC2 Audio Encoder
    ; Block definition [[Category:Block Docs]]
    866 bytes (112 words) - 02:08, 10 December 2020
  • CODEC2 Audio Decoder
    ; Block definition [[Category:Block Docs]]
    866 bytes (112 words) - 02:12, 10 December 2020
  • GMSK Modulator
    [[Category:Block Docs]] GMSK modulator block.
    1 KB (186 words) - 17:12, 11 September 2019
  • Fractional Interpolator
    [[Category:Block Docs]] ...o have an example flowgraph showing how the block might be used, for every block, and the flowgraphs will live in the git repo.
    2 KB (237 words) - 13:27, 3 September 2019
  • Encode CCSDS 27
    [[Category:Block Docs]] This block performs convolutional encoding using the CCSDS standard polynomial ("Voyag
    1 KB (186 words) - 12:56, 20 August 2019
  • Tagged Stream Align
    [[Category:Block Docs]] ...o have an example flowgraph showing how the block might be used, for every block, and the flowgraphs will live in the git repo.
    897 bytes (139 words) - 15:42, 23 August 2019
  • PDU Filter
    [[Category:Block Docs]] <b>Note for 3.10</b> This block has been moved from gr-blocks to gr-pdu, which causes a name change of the
    2 KB (233 words) - 14:12, 27 January 2022
  • Soapy RTLSDR Source
    [[Category:Block Docs]] The RTLSDR Source Block is used to stream samples from a RTLSDR device (i.e. act as the receiver).
    1 KB (138 words) - 19:27, 20 December 2021
  • Convolutional Deinterleaver
    [[Category:Block Docs]] : size of a block.
    871 bytes (120 words) - 14:23, 30 November 2020
  • Add
    [[Category:Block Docs]] This flowgraph uses an Add Block to generate the classic "dial tone".<br>
    1 KB (168 words) - 09:23, 25 August 2022
  • Bit Interleaver
    [[Category:Block Docs]] Part of the DVB block set. Bit interleaves DVB-T2 FEC baseband frames.
    858 bytes (117 words) - 12:16, 20 December 2021
  • PDU Set
    [[Category:Block Docs]] <b>Note for 3.10</b> This block has been moved from gr-blocks to gr-pdu, which causes a name change of the
    1 KB (153 words) - 14:27, 27 January 2022
  • Add Const
    [[Category:Block Docs]] This block adds a constant value to each item that passes through it.
    3 KB (484 words) - 09:30, 25 August 2022
  • Multiply Const
    [[Category:Block Docs]] See [[Fast_Multiply_Const]] for a more performant version of this block for '''scalar''' values only.
    2 KB (288 words) - 16:34, 24 October 2021
  • Interleave
    [[Category:Block Docs]] This block interleaves blocks of samples. For each input connection, the samples are i
    2 KB (272 words) - 19:32, 30 July 2023
  • Differential Phasor
    [[Category:Block Docs]] ...o have an example flowgraph showing how the block might be used, for every block, and the flowgraphs will live in the git repo.
    1 KB (193 words) - 09:36, 11 October 2023
  • QT GUI Check Box
    [[Category:Block Docs]] This block creates a variable check box. Leave the label blank to use the variable id
    470 bytes (76 words) - 03:11, 15 July 2019
  • IQ Imbalance Generator
    [[Category:Block Docs]] This hierarchical block implements the single branch IQ imbalance transmitter and receiver models.
    1 KB (187 words) - 00:27, 12 August 2019
  • TCP Source
    ...ck connects to a server at the given address and port. In server mode, the block starts a local listener on the given port and accepts the first client conn ...resses. If an IPv6 address is detected as the destination IP address, the block will automatically adjust for proper connection. Just make sure your IPv6
    2 KB (228 words) - 01:49, 2 September 2023
  • TCP Sink
    ...ck connects to a server at the given address and port. In server mode, the block starts a local listener on the given port and accepts the first client conn ...resses. If an IPv6 address is detected as the destination IP address, the block will automatically adjust for proper connection. Just make sure your IPv6
    2 KB (264 words) - 08:18, 18 December 2020
  • Import
    [[Category:Block Docs]] ...we used the Import block to import fftpack from scipy (the argument to the block is 'from scipy import fftpack'). fftpack is then used to set the variable t
    784 bytes (119 words) - 21:27, 16 May 2023
  • Char To Float
    [[Category:Block Docs]] This flowgraph compares this block with the [[Char To Short]] which multiplies by 256 by default. Note that t
    1 KB (171 words) - 10:35, 5 August 2022
  • Packet Header Generator (Default)
    [[Category:Block Docs]] ...t header for a tagged, streamed packet based on the specified length. This block is a special case of [[Packet Header Generator]]
    1 KB (215 words) - 13:42, 8 August 2023
  • Viterbi Combo
    [[Category:Block Docs]] ; Block Size (''R'')
    2 KB (227 words) - 14:41, 6 September 2019
  • And
    [[Category:Block Docs]] ; Block definition
    888 bytes (143 words) - 08:34, 31 January 2022
  • Log Power FFT
    [[Category:Block Docs]] ...o have an example flowgraph showing how the block might be used, for every block, and the flowgraphs will live in the git repo.
    1 KB (189 words) - 10:00, 4 November 2022
  • Rational Resampler
    [[Category:Block Docs]] This block only works when the output language of the flowgraph is Python.
    1 KB (192 words) - 13:35, 3 May 2023
  • Constellation Decoder
    [[Category:Block Docs]] ; Block definition
    843 bytes (112 words) - 14:24, 22 March 2023
  • RFNoC TX Radio
    <!-- /dcs/local/share/gnuradio/grc/blocks/uhd_rfnoc_tx_radio.block.yml --> ;Block Args
    2 KB (219 words) - 16:53, 2 November 2023
  • SCCC Decoder
    [[Category:Block Docs]] ; Block size
    1 KB (219 words) - 14:41, 6 September 2019
  • Tag Share
    [[Category:Block Docs]] ...further signal processing that should be done on the complex stream. This block allows the detection tags to be added to the complex stream to trigger down
    1 KB (216 words) - 17:55, 20 August 2019
  • FEC Extended Encoder
    [[Category:Block Docs]] : Object defined by an LDPC_Encoder_Definition block
    1 KB (159 words) - 14:50, 3 December 2020
  • Trellis Metrics
    [[Category:Block Docs]] ...o have an example flowgraph showing how the block might be used, for every block, and the flowgraphs will live in the git repo.
    1 KB (205 words) - 14:42, 6 September 2019
  • RFNoC Split Stream Block
    <!-- /dcs/local/share/gnuradio/grc/blocks/uhd_rfnoc_split_stream.block.yml --> This RFNoC block takes in a single CHDR stream and duplicates it, creating
    2 KB (273 words) - 14:01, 29 October 2023
  • JSON Config
    This block presents a JSON config file which is read in as a dictionary. If the id of this block is <code>json_config_0</code>, then you can access the samp rate
    1 KB (182 words) - 10:57, 20 June 2023
  • FEC Tagged Encoder
    [[Category:Block Docs]] Creates the encoder block for use in GNU Radio flowgraphs from a given FECAPI object derived from the
    2 KB (255 words) - 06:57, 2 June 2022
  • Regenerate
    [[Category:Block Docs]] If a peak is detected, this block outputs a 1 repeated every period samples until reset by detection of anoth
    1 KB (177 words) - 16:45, 20 August 2019
  • Ctrlport Probe
    [[Category:Block Docs]] ...o have an example flowgraph showing how the block might be used, for every block, and the flowgraphs will live in the git repo.
    1 KB (170 words) - 00:02, 18 August 2019
  • PDU To Stream
    ; Block definition ...ps://github.com/gnuradio/gnuradio/blob/master/gr-pdu/grc/pdu_pdu_to_stream.block.yml]
    1,002 bytes (135 words) - 11:35, 14 December 2021
  • Chunks to Symbols
    [[Category:Block Docs]] The combination of [[Packed to Unpacked]] followed by this block handles the general case of mapping from a stream of bytes or shorts into a
    1 KB (195 words) - 10:14, 26 January 2022
  • GMSK Demod
    [[Category:Block Docs]] Hierarchical block for Gaussian Minimum Shift Key (GMSK) demodulation.
    1 KB (177 words) - 17:08, 11 September 2019
  • PCCC Decoder
    [[Category:Block Docs]] ; Block Size
    1 KB (210 words) - 15:33, 4 September 2019
  • Hilbert
    [[Category:Block Docs]] ; Block definition
    633 bytes (84 words) - 01:09, 28 March 2020
  • LDPC Bit Flip Decoder Definition
    [[Category:Block Docs]] This block creates a LDPC Bit Flip Decoder Definition variable.
    1 KB (199 words) - 13:35, 21 December 2021
  • Frequency Xlating FFT Filter
    [[Category:Block Docs]] This is a hier block, consisting of a [[FFT Filter]] block and a [[Rotator]] block. It performs the same function as the [[Frequency Xlating FIR Filter]], ex
    1 KB (231 words) - 03:52, 15 July 2019
  • AGC
    [[Category:Block Docs]] This flowgraph shows an Automatic Gain Control block in an AM receiver.
    2 KB (225 words) - 16:14, 4 December 2021
  • Tagged Stream to PDU
    [[Category:Block Docs]] <b>Note for 3.10</b> This block has been moved from gr-blocks to gr-pdu, which causes a name change of the
    1 KB (164 words) - 14:42, 27 January 2022
  • DVB-S2X Modulator
    [[Category:Block Docs]] ...c_tx.grc here]. You can transmit this signal by removing the [[Throttle]] block and adding an SDR sink to the output of the FFT filter.
    969 bytes (134 words) - 14:26, 20 December 2021
  • Vector to Streams
    [[Category:Block Docs]] ...o have an example flowgraph showing how the block might be used, for every block, and the flowgraphs will live in the git repo.
    994 bytes (156 words) - 16:53, 20 August 2019
  • Packet Header Parser (Default)
    [[Category:Block Docs]] Post header metadata as a PMT. In a sense, this is the inverse block to [[Packet Header Generator (Default)]]. The difference is, the parsed hea
    2 KB (257 words) - 13:53, 8 August 2023
  • Complex to Imag
    [[Category:Block Docs]]
    257 bytes (36 words) - 16:33, 13 July 2020
  • TUNTAP PDU
    [[Category:Block Docs]] GNU Radio needs root privileges to use this block.
    1 KB (218 words) - 09:48, 31 January 2022
  • LDPC Decoder Definition
    [[Category:Block Docs]] : For parallel execution of multiple instances of the block (more info is needed on this)
    1 KB (177 words) - 13:37, 21 December 2021
  • Python Module
    [[Category:Block Docs]] block. Example:
    702 bytes (122 words) - 02:50, 10 August 2023
  • Interleaver
    [[Category:Block Docs]] ...o have an example flowgraph showing how the block might be used, for every block, and the flowgraphs will live in the git repo.
    1,007 bytes (145 words) - 10:52, 3 August 2019
  • Repeat
    [[Category:Block Docs]] ; Block definition
    1,014 bytes (139 words) - 11:12, 1 February 2022
  • Streams to Vector
    [[Category:Block Docs]] ...o have an example flowgraph showing how the block might be used, for every block, and the flowgraphs will live in the git repo.
    1 KB (193 words) - 17:22, 20 August 2019
  • Randomizer
    [[Category:Block Docs]] ...o have an example flowgraph showing how the block might be used, for every block, and the flowgraphs will live in the git repo.
    1 KB (180 words) - 13:32, 11 September 2019
  • Trellis Permutation
    [[Category:Block Docs]] ...o have an example flowgraph showing how the block might be used, for every block, and the flowgraphs will live in the git repo.
    1 KB (209 words) - 14:42, 6 September 2019
  • Log10
    [[Category:Block Docs]] This block handles null and negative samples by using, for each sample, the max betwee
    1 KB (153 words) - 09:09, 11 July 2019
  • WBFM Receive PLL
    [[Category:Block Docs]] Hierarchical block for demodulating a broadcast FM signal.
    1 KB (150 words) - 18:09, 22 August 2023
  • FMComms2/3/4 Sink
    <!-- /dcs/local/share/gnuradio/grc/blocks/iio_fmcomms2_sink.block.yml --> ; Block definition
    2 KB (203 words) - 01:44, 31 October 2023
  • Interpolating FIR Filter
    [[Category:Block Docs]] The block create finite impulse response (FIR) filters that perform the convolution i
    2 KB (275 words) - 11:15, 3 August 2019
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