DVB-S2 Transmitter and Receiver Loopback

Browser-safe DVB-S2 short-frame QPSK transmitter and DVB-S2RX FEC receiver loopback
Author Marc
Category DVB-S2
Blocks 14
Connections 13
File dvbs2/dvbs2_loopback.grc
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Blocks used

Block	Module	Used
BBdeheader	`gr-dvbs2rx`	1
BBdescrambler	`gr-dvbs2rx`	1
BBheader	`gr-dvbs2`	1
BBscrambler	`gr-dvbs2`	1
BCH Decoder	`gr-dvbs2rx`	1
BCH Encoder	`gr-dvbs2`	1
DVB-S2X Modulator	`gr-dvbs2`	1
Interleaver	`gr-dvbs2`	1
LDPC Decoder	`gr-dvbs2rx`	1
LDPC Encoder	`gr-dvbs2`	1
QT GUI Constellation Sink	`GNU Radio`	1
Throttle	`GNU Radio`	1
Vector Source	`GNU Radio`	1
WASM Packet Rate Sink	`GNU Radio`	1
Flowgraph source

dvbs2/dvbs2_loopback.grc
options:
    parameters:
        author: Marc
        copyright: ''
        description: Browser-safe DVB-S2 short-frame QPSK transmitter and DVB-S2RX FEC receiver loopback
        generate_options: qt_gui
        id: DVB_S2_Transmitter_and_Receiver_Loopback
        title: DVB-S2 Transmitter and Receiver Loopback
    states:
        coordinate: [10, 10]
        rotation: 0
        state: enabled
blocks:
-   name: channel_throttle
    id: blocks_throttle2
    parameters:
        affinity: ''
        alias: ''
        comment: ''
        ignoretag: 'True'
        limit: auto
        maximum: '0.1'
        maxoutbuf: '0'
        minoutbuf: '0'
        samples_per_second: '320000'
        type: complex
        vlen: '1'
    states:
        coordinate: [400, 630]
        rotation: 0
        state: enabled
-   name: decoded_packet_rate
    id: wasm_packet_rate_sink
    parameters:
        affinity: ''
        alias: ''
        comment: ''
        items_per_packet: '188'
        label: Decoded transport packets
        name: DVB-S2 Receiver
        type: byte
        unit: ' pkt/s'
        update_time: '2'
    states:
        coordinate: [410, 1040]
        rotation: 0
        state: enabled
-   name: rx_bbdeheader
    id: dvbs2rx_bbdeheader_bb
    parameters:
        affinity: ''
        alias: ''
        comment: ''
        framesize1: FECFRAME_NORMAL
        framesize2: FECFRAME_SHORT
        maxoutbuf: '0'
        minoutbuf: '0'
        rate1: C1_2
        rate2: C1_3
        rate3: C1_4
        rate4: C1_5_MEDIUM
        rate5: C1_2
        standard: STANDARD_DVBS2
    states:
        coordinate: [80, 1010]
        rotation: 0
        state: enabled
-   name: rx_bbdescrambler
    id: dvbs2rx_bbdescrambler_bb
    parameters:
        affinity: ''
        alias: ''
        comment: ''
        framesize1: FECFRAME_NORMAL
        framesize2: FECFRAME_SHORT
        maxoutbuf: '0'
        minoutbuf: '0'
        rate1: C1_2
        rate2: C1_3
        rate3: C1_4
        rate4: C1_5_MEDIUM
        rate5: C1_2
        standard: STANDARD_DVBS2
    states:
        coordinate: [1440, 590]
        rotation: 0
        state: enabled
-   name: rx_bch_decoder
    id: dvbs2rx_bch_decoder_bb
    parameters:
        affinity: ''
        alias: ''
        comment: ''
        framesize1: FECFRAME_NORMAL
        framesize2: FECFRAME_SHORT
        maxoutbuf: '0'
        minoutbuf: '0'
        outputmode: OM_MESSAGE
        rate1: C1_2
        rate2: C1_3
        rate3: C1_4
        rate4: C1_5_MEDIUM
        rate5: C1_2
        standard: STANDARD_DVBS2
    states:
        coordinate: [1110, 580]
        rotation: 0
        state: enabled
-   name: rx_ldpc_decoder
    id: dvbs2rx_ldpc_decoder_cb
    parameters:
        affinity: ''
        alias: ''
        comment: ''
        constellation1: MOD_QPSK
        constellation2: MOD_QPSK
        framesize1: FECFRAME_NORMAL
        framesize2: FECFRAME_SHORT
        infomode: INFO_OFF
        maxoutbuf: '0'
        minoutbuf: '0'
        outputmode: OM_MESSAGE
        rate1: C1_2
        rate2: C1_3
        rate3: C1_4
        rate4: C1_5_MEDIUM
        rate5: C1_2
        standard: STANDARD_DVBS2
    states:
        coordinate: [730, 550]
        rotation: 0
        state: enabled
-   name: transmitted_constellation
    id: qtgui_const_sink_x
    parameters:
        affinity: ''
        alias: ''
        alpha1: '1'
        autoscale: 'False'
        axislabels: 'True'
        color1: '"blue"'
        comment: ''
        grid: 'True'
        label1: DVB-S2 QPSK
        legend: 'True'
        marker1: '0'
        name: DVB-S2 Transmitted Constellation
        size: '1024'
        style1: '1'
        tr_chan: '0'
        tr_level: '0'
        tr_mode: qtgui.TRIG_MODE_FREE
        tr_slope: qtgui.TRIG_SLOPE_POS
        tr_tag: ''
        update_time: '0.1'
        width1: '1'
        xmax: '2'
        xmin: '-2'
        ymax: '2'
        ymin: '-2'
    states:
        coordinate: [730, 850]
        rotation: 0
        state: enabled
-   name: transport_stream_packet
    id: blocks_vector_source_x
    parameters:
        affinity: ''
        alias: ''
        comment: ''
        maxoutbuf: '0'
        minoutbuf: '0'
        repeat: 'True'
        tags: '[]'
        type: byte
        vector: '[71, 64, 0, 16, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 118, 119, 120, 121, 122, 123, 124, 125, 126, 127, 128, 129, 130, 131, 132, 133, 134, 135, 136, 137, 138, 139, 140, 141, 142, 143, 144, 145, 146, 147, 148, 149, 150, 151, 152, 153, 154, 155, 156, 157, 158, 159, 160, 161, 162, 163, 164, 165, 166, 167, 168, 169, 170, 171, 172, 173, 174, 175, 176, 177, 178, 179, 180, 181, 182, 183]'
        vlen: '1'
    states:
        coordinate: [10, 300]
        rotation: 0
        state: enabled
-   name: tx_bbheader
    id: dvbs2_bbheader_bb
    parameters:
        affinity: ''
        alias: ''
        comment: ''
        constellation1: MOD_QPSK
        constellation2: MOD_QPSK
        constellation3: MOD_QPSK
        constellation4: MOD_QPSK
        framesize1: FECFRAME_SHORT
        framesize2: FECFRAME_NORMAL
        framesize3: FECFRAME_NORMAL
        framesize4: FECFRAME_NORMAL
        goldcode1: '0'
        goldcode2: '0'
        goldcode3: '0'
        goldcode4: '0'
        maxoutbuf: '0'
        minoutbuf: '0'
        nstreams: '1'
        pilots1: PILOTS_OFF
        pilots2: PILOTS_OFF
        pilots3: PILOTS_OFF
        pilots4: PILOTS_OFF
        rate1_1: C1_4
        rate1_2: C1_5_MEDIUM
        rate1_3: C1_2
        rate2_1: C1_4
        rate2_2: C1_5_MEDIUM
        rate2_3: C1_4
        rate3_1: C1_4
        rate3_2: C1_5_MEDIUM
        rate3_3: C1_4
        rate4_1: C1_4
        rate4_2: C1_5_MEDIUM
        rate4_3: C1_4
        rolloff: RO_0_20
    states:
        coordinate: [360, 190]
        rotation: 0
        state: enabled
-   name: tx_bbscrambler
    id: dvbs2_bbscrambler_bb
    parameters:
        affinity: ''
        alias: ''
        comment: ''
        maxoutbuf: '0'
        minoutbuf: '0'
    states:
        coordinate: [690, 310]
        rotation: 0
        state: enabled
-   name: tx_bch_encoder
    id: dvbs2_bch_bb
    parameters:
        affinity: ''
        alias: ''
        comment: ''
        maxoutbuf: '0'
        minoutbuf: '0'
    states:
        coordinate: [940, 310]
        rotation: 0
        state: enabled
-   name: tx_interleaver
    id: dvbs2_interleaver_bb
    parameters:
        affinity: ''
        alias: ''
        comment: ''
        maxoutbuf: '0'
        minoutbuf: '0'
    states:
        coordinate: [1450, 310]
        rotation: 0
        state: enabled
-   name: tx_ldpc_encoder
    id: dvbs2_ldpc_bb
    parameters:
        affinity: ''
        alias: ''
        comment: ''
        maxoutbuf: '0'
        minoutbuf: '0'
    states:
        coordinate: [1190, 310]
        rotation: 0
        state: enabled
-   name: tx_qpsk_modulator
    id: dvbs2_modulator_bc
    parameters:
        affinity: ''
        alias: ''
        comment: ''
        maxoutbuf: '0'
        minoutbuf: '0'
    states:
        coordinate: [80, 650]
        rotation: 0
        state: enabled
connections:
- [channel_throttle, '0', rx_ldpc_decoder, '0']
- [channel_throttle, '0', transmitted_constellation, '0']
- [rx_bbdeheader, '0', decoded_packet_rate, '0']
- [rx_bbdescrambler, '0', rx_bbdeheader, '0']
- [rx_bch_decoder, '0', rx_bbdescrambler, '0']
- [rx_ldpc_decoder, '0', rx_bch_decoder, '0']
- [transport_stream_packet, '0', tx_bbheader, '0']
- [tx_bbheader, '0', tx_bbscrambler, '0']
- [tx_bbscrambler, '0', tx_bch_encoder, '0']
- [tx_bch_encoder, '0', tx_ldpc_encoder, '0']
- [tx_interleaver, '0', tx_qpsk_modulator, '0']
- [tx_ldpc_encoder, '0', tx_interleaver, '0']
- [tx_qpsk_modulator, '0', channel_throttle, '0']
metadata:
    file_format: 1
    grc_version: 3.11.0.0