diff --git a/gnuradio scripts/TX/US_LongFast.grc b/gnuradio scripts/TX/US_LongFast.grc
new file mode 100644
index 0000000..7f4140c
--- /dev/null
+++ b/gnuradio scripts/TX/US_LongFast.grc	
@@ -0,0 +1,490 @@
+options:
+  parameters:
+    author: Tapparel Joachim@EPFL,TCL
+    catch_exceptions: 'True'
+    category: '[GRC Hier Blocks]'
+    cmake_opt: ''
+    comment: ''
+    copyright: ''
+    description: ''
+    gen_cmake: 'On'
+    gen_linking: dynamic
+    generate_options: qt_gui
+    hier_block_src_path: '.:'
+    id: lora_TX
+    max_nouts: '0'
+    output_language: python
+    placement: (0,0)
+    qt_qss_theme: ''
+    realtime_scheduling: ''
+    run: 'True'
+    run_command: '{python} -u {filename}'
+    run_options: prompt
+    sizing_mode: fixed
+    thread_safe_setters: ''
+    title: ''
+    window_size: ''
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [8, 8.0]
+    rotation: 0
+    state: enabled
+
+blocks:
+- name: bandpass250k
+  id: variable_band_pass_filter_taps
+  parameters:
+    beta: '6.76'
+    comment: ''
+    gain: '1.0'
+    high_cutoff_freq: lora_250bandwidth/2
+    low_cutoff_freq: -lora_250bandwidth/2
+    samp_rate: samp_rate
+    type: complex_band_pass
+    value: ''
+    width: lora_250bandwidth/50
+    win: window.WIN_HAMMING
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [1048, 4.0]
+    rotation: 0
+    state: enabled
+- name: center_250KHz
+  id: variable
+  parameters:
+    comment: ''
+    value: '906875000'
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [288, 80.0]
+    rotation: 0
+    state: enabled
+- name: center_freq
+  id: variable
+  parameters:
+    comment: ''
+    value: '906875000'
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [184, 80.0]
+    rotation: 0
+    state: enabled
+- name: cr_44
+  id: variable
+  parameters:
+    comment: ''
+    value: '0'
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [488, 8.0]
+    rotation: 0
+    state: enabled
+- name: cr_45
+  id: variable
+  parameters:
+    comment: ''
+    value: '1'
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [544, 8.0]
+    rotation: 0
+    state: enabled
+- name: cr_46
+  id: variable
+  parameters:
+    comment: ''
+    value: '2'
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [488, 72.0]
+    rotation: 0
+    state: enabled
+- name: cr_47
+  id: variable
+  parameters:
+    comment: ''
+    value: '3'
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [544, 72.0]
+    rotation: 0
+    state: enabled
+- name: cr_48
+  id: variable
+  parameters:
+    comment: ''
+    value: '8'
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [488, 136.0]
+    rotation: 0
+    state: enabled
+- name: has_crc
+  id: variable
+  parameters:
+    comment: ''
+    value: 'True'
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [712, 8.0]
+    rotation: 0
+    state: enabled
+- name: impl_head
+  id: variable
+  parameters:
+    comment: ''
+    value: 'False'
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [624, 8.0]
+    rotation: 0
+    state: enabled
+- name: lora_250bandwidth
+  id: variable
+  parameters:
+    comment: ''
+    value: '250000'
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [272, 8.0]
+    rotation: 0
+    state: enabled
+- name: preamble_length
+  id: variable
+  parameters:
+    comment: ''
+    value: '16'
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [624, 80.0]
+    rotation: 0
+    state: enabled
+- name: samp_rate
+  id: variable
+  parameters:
+    comment: ''
+    value: '1000000'
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [184, 8.0]
+    rotation: 0
+    state: enabled
+- name: sf_11
+  id: variable
+  parameters:
+    comment: ''
+    value: '11'
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [408, 8.0]
+    rotation: 0
+    state: enabled
+- name: sync_word
+  id: variable
+  parameters:
+    comment: 'Technically the sync-word here for meshtastic is 0x2b
+
+      Trying this leads to no data gathered.
+
+      Using the [0,0] works.'
+    value: '[16,88]'
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [760, 80.0]
+    rotation: 0
+    state: enabled
+- name: blocks_throttle2_0
+  id: blocks_throttle2
+  parameters:
+    affinity: ''
+    alias: ''
+    comment: ''
+    ignoretag: 'True'
+    limit: auto
+    maximum: '0.1'
+    maxoutbuf: '0'
+    minoutbuf: '0'
+    samples_per_second: samp_rate*10
+    type: complex
+    vlen: '1'
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [792, 432.0]
+    rotation: 0
+    state: enabled
+- name: lora_sdr_add_crc_0
+  id: lora_sdr_add_crc
+  parameters:
+    affinity: ''
+    alias: ''
+    comment: ''
+    has_crc: has_crc
+    maxoutbuf: '0'
+    minoutbuf: '0'
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [640, 288.0]
+    rotation: 0
+    state: enabled
+- name: lora_sdr_gray_demap_0
+  id: lora_sdr_gray_demap
+  parameters:
+    affinity: ''
+    alias: ''
+    comment: ''
+    maxoutbuf: '0'
+    minoutbuf: '0'
+    sf: sf_11
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [480, 448.0]
+    rotation: 0
+    state: enabled
+- name: lora_sdr_hamming_enc_0
+  id: lora_sdr_hamming_enc
+  parameters:
+    affinity: ''
+    alias: ''
+    comment: ''
+    cr: cr_45
+    maxoutbuf: '0'
+    minoutbuf: '0'
+    sf: sf_11
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [640, 368.0]
+    rotation: 180
+    state: enabled
+- name: lora_sdr_header_0
+  id: lora_sdr_header
+  parameters:
+    affinity: ''
+    alias: ''
+    comment: ''
+    cr: cr_45
+    has_crc: has_crc
+    impl_head: impl_head
+    maxoutbuf: '0'
+    minoutbuf: '0'
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [488, 272.0]
+    rotation: 0
+    state: enabled
+- name: lora_sdr_interleaver_0
+  id: lora_sdr_interleaver
+  parameters:
+    affinity: ''
+    alias: ''
+    bw: lora_250bandwidth
+    comment: ''
+    cr: cr_45
+    ldro: '2'
+    maxoutbuf: '0'
+    minoutbuf: '0'
+    sf: '11'
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [504, 352.0]
+    rotation: 180
+    state: enabled
+- name: lora_sdr_modulate_0
+  id: lora_sdr_modulate
+  parameters:
+    affinity: ''
+    alias: ''
+    bw: lora_250bandwidth
+    comment: ''
+    frame_zero_padd: int(20*2**sf_11*samp_rate/lora_250bandwidth)
+    maxoutbuf: '0'
+    minoutbuf: '8200'
+    preamb_len: preamble_length
+    samp_rate: samp_rate
+    sf: sf_11
+    sync_words: sync_word
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [640, 432.0]
+    rotation: 0
+    state: enabled
+- name: lora_sdr_whitening_0_0
+  id: lora_sdr_whitening
+  parameters:
+    affinity: ''
+    alias: ''
+    comment: ''
+    is_hex: 'True'
+    length_tag_name: '''packet_len'''
+    maxoutbuf: '0'
+    minoutbuf: '0'
+    separator: ''','''
+    source_type: message_strobe
+    use_length_tag: 'False'
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [264, 288.0]
+    rotation: 0
+    state: enabled
+- name: qtgui_waterfall_sink_x_0
+  id: qtgui_waterfall_sink_x
+  parameters:
+    affinity: ''
+    alias: ''
+    alpha1: '1.0'
+    alpha10: '1.0'
+    alpha2: '1.0'
+    alpha3: '1.0'
+    alpha4: '1.0'
+    alpha5: '1.0'
+    alpha6: '1.0'
+    alpha7: '1.0'
+    alpha8: '1.0'
+    alpha9: '1.0'
+    axislabels: 'True'
+    bw: samp_rate
+    color1: '0'
+    color10: '0'
+    color2: '0'
+    color3: '0'
+    color4: '0'
+    color5: '0'
+    color6: '0'
+    color7: '0'
+    color8: '0'
+    color9: '0'
+    comment: ''
+    fc: center_250KHz
+    fftsize: '32768'
+    freqhalf: 'True'
+    grid: 'False'
+    gui_hint: ''
+    int_max: '10'
+    int_min: '-140'
+    label1: ''
+    label10: ''
+    label2: ''
+    label3: ''
+    label4: ''
+    label5: ''
+    label6: ''
+    label7: ''
+    label8: ''
+    label9: ''
+    legend: 'True'
+    maxoutbuf: '0'
+    minoutbuf: '0'
+    name: '"Channel Model"'
+    nconnections: '1'
+    showports: 'False'
+    type: complex
+    update_time: '0.10'
+    wintype: window.WIN_BLACKMAN_hARRIS
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [1000, 328.0]
+    rotation: 0
+    state: enabled
+- name: soapy_hackrf_sink_0
+  id: soapy_hackrf_sink
+  parameters:
+    affinity: ''
+    alias: ''
+    amp: 'False'
+    bandwidth: '0'
+    center_freq: center_freq
+    comment: ''
+    dev_args: hackrf=0
+    samp_rate: samp_rate
+    type: fc32
+    vga: '16'
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [1000, 440.0]
+    rotation: 0
+    state: enabled
+- name: zeromq_pull_msg_source_0
+  id: zeromq_pull_msg_source
+  parameters:
+    address: tcp://0.0.0.0:30004
+    affinity: ''
+    alias: ''
+    bind: 'True'
+    comment: ''
+    maxoutbuf: '0'
+    minoutbuf: '0'
+    timeout: '100'
+  states:
+    bus_sink: false
+    bus_source: false
+    bus_structure: null
+    coordinate: [32, 280.0]
+    rotation: 0
+    state: enabled
+
+connections:
+- [blocks_throttle2_0, '0', qtgui_waterfall_sink_x_0, '0']
+- [blocks_throttle2_0, '0', soapy_hackrf_sink_0, '0']
+- [lora_sdr_add_crc_0, '0', lora_sdr_hamming_enc_0, '0']
+- [lora_sdr_gray_demap_0, '0', lora_sdr_modulate_0, '0']
+- [lora_sdr_hamming_enc_0, '0', lora_sdr_interleaver_0, '0']
+- [lora_sdr_header_0, '0', lora_sdr_add_crc_0, '0']
+- [lora_sdr_interleaver_0, '0', lora_sdr_gray_demap_0, '0']
+- [lora_sdr_modulate_0, '0', blocks_throttle2_0, '0']
+- [lora_sdr_whitening_0_0, '0', lora_sdr_header_0, '0']
+- [zeromq_pull_msg_source_0, out, lora_sdr_whitening_0_0, msg]
+
+metadata:
+  file_format: 1
+  grc_version: 3.10.9.2