hacky.js

var radio = require('./')()
var shortTimeFT = require("stft")

var BAUD_RATE = 1
var TIME_PER_BIT = 1000 / BAUD_RATE
var SYNC_PERIOD = 5000

radio.setFrequency(2.49e9)
radio.setSampleRate(320e3)
radio.setBandwidth(640e3)
radio.setLNAGain(30)
radio.setVGAGain(40)
radio.setTxGain(40)
 

function onFreq(re, im) {
 console.log(re.length , " - ", im.length); 
}
 
//var stft = shortTimeFT(1, 1024, onFreq)
var stft = shortTimeFT(1, 262144, onFreq)
 
//Feed stuff into signal 

function demod (radio) {
  var total = 0
  var bytes = 0
  var low = Infinity
  var high = 0
  radio.startRx(function (data, done) {
    var array = new Float32Array(data.length)
    for (var i = 0; i < data.length; i++) {
      array[i] = data[i] / 255;
    }
   // console.log(data.length);
    stft(array);


    done()
  })
}

function mod (radio, message) {
  var bits = bitfield(message)
  var bitN = 0
  radio.startTx(function (data, done) {
    data.fill(bits.get(bitN) ? 127 : 0)
    done()
  })
  setInterval(function () {
    bitN++
    if (bitN === message.length * 8) bitN = 0
  }, TIME_PER_BIT)
}

demod(radio)