{
  "__comment1__": "customizable rig identification -- will allow multiple rigs to be on the multicast",
  "ID": "Rig#1", 
  "VFOs": [
  {
    "Name": "VFOA",
    "Freq": 14074000, 
    "Mode": "USB",
    "Width": 5000, 
    "RX": true, 
    "TX": false
  },
  {
    "Name": "VFOB",
    "Freq": 14076000,
    "Mode": "USB",
    "Width": 5000,
    "RX": false,
    "TX": false
  }],

  "__comment_spectrum__": "Rigs that have spectrum output may include this data",
  "Spectra": [
  {
    "Name": "Main",
    "Length": 475,
    "__comment_spectrum_data__": "2-char hex bytes so data len=2*Length",
    "Data": "00AAFF75BD2AAA...",
    "Type": "FIXED|CENTER",
    "MinLevel": 0,
    "MaxLevel": 140,
    "MinStrength": -100,
    "MaxStrength": 0,

    "__comment_spectrum_center__": "If Type=CENTER, the following fields will be present:",
    "CenterFreq": 14267000,
    "Span": 25000,

    "__comment_spectrum_fixed__": "If SpectrumType=FIXED, the following fields will be present:",
    "LowFreq": 14000000,
    "HighFreq": 14250000
  },
  {
    "Name": "Sub",
    "Length": 475,
    "__comment_spectrum_data__": "2-char hex bytes so data len=2*Length",
    "Data": "00AAFF75BD2AAA...",
    "Type": "FIXED|CENTER",
    "MinLevel": 0,
    "MaxLevel": 140,
    "MinStrength": -100,
    "MaxStrength": 0,

    "__comment_spectrum_center__": "If Type=CENTER, the following fields will be present:",
    "CenterFreq": 14267000,
    "Span": 25000,

    "__comment_spectrum_fixed__": "If SpectrumType=FIXED, the following fields will be present:",
    "LowFreq": 14000000,
    "HighFreq": 14250000
  }],
  "LastCommand": {
     "ID": "MyApp 123", 
     "Command": "set_freq VFOA 14074000",
     "Status": "OK"
  },

  "Split": true,
  "SatMode": false,
  "Rig": "Dummy",
  "App": "Hamlib",
  "__comment_version__": "protocol version date YYYYMMDD",
  "Version": "20210520", 
  "__comment_seq__": "Seq is 1-up sequence number 32-bit -- wraps around to 1 from 2^32-1",
  "Seq": 1,  
  "__comment_crc__": "32-bit CRC of entire JSON record replacing the CRC value with 0x00000000",
  "CRC": "0x00000000"
}