Projet: Fabrication d’une balise WSPR Mulibande. Elle change de fréquence, se synchronise par GPS en horraire et correction du SI en fréquence. Ceci est encore en construction.

I.La carte mère

1.Le Schema

Kicad file here: main_card_v3

2.PCB

3.Code

Code: bwfinal

Library:libraries

In Arduino 1.8.5

#include <SoftwareSerial.h>
#include <TinyGPS++.h>
#include "si5351.h"
#include "Wire.h"
#include <LiquidCrystal_I2C.h>
#include <EEPROM.h>

LiquidCrystal_I2C lcd(0x3F, 2, 1, 0, 4, 5, 6, 7, 3, POSITIVE);

Si5351 si5351;

SoftwareSerial ss(7, 6);
TinyGPSPlus gps;

String inputStringUSBSerial = "";
boolean stringCompleteUSBSerial = false;

#define ppsPin  2
#define PAPin 3

// Broches d'adresse filtres antennes
const byte PIN_ADDR_A = 8;
const byte PIN_ADDR_B = 9;
const byte PIN_ADDR_C = 10;
const byte PIN_ADDR_D = 11;
// Broche de signal filtres antennes
const byte PIN_SIG = 12;
#define resetantenna  6

unsigned int tcount = 2;
unsigned long mult = 0;

int32_t measdif = 0, measdif_old = 2147483647, calfact = 0, calfact_old = 0;
uint64_t meas_freqC = 0;
volatile boolean CorectFlag = false;
volatile boolean CorectFlagCycle = false;

volatile boolean sendTX = false;
volatile bool s_GpsOneSecTick = false;
volatile boolean LCDpoint = false;

char txCall[] = "F4HTB";
char txLoc[] = "JJ00";//"JJ00";
char txPow[] = "30";

byte sec = 0;
volatile bool synctime = false;
byte cycle = 0;

byte WSPRSISymb[162];
bool WSPRSISymbGen = 0;

unsigned long  Frequencys[20]   = {};//{0,14095600L, 14095600L, 0, 14095600L, 14095600L};//Frequency by cycle
byte   FtoAnt[20]       = {};//{1,1, 2, 1, 2, 1}; //antenna by cycle
#define ncycles 19 //0 to n ° cycles

//******************************************************************
// Others functions
//******************************************************************
void waitticks() {
  while (!s_GpsOneSecTick) {
    delayMicroseconds(100);
  }
}

/*****************************************************************
  write for filters and antenna
*****************************************************************/
void writeAnalogMux(byte channel) {

  // On disable la valeur courante
  digitalWrite(PIN_SIG, LOW);
  delayMicroseconds(100);

  // On selectionne la voie
  digitalWrite(PIN_ADDR_A, bitRead(channel, 0));
  digitalWrite(PIN_ADDR_B, bitRead(channel, 1));
  digitalWrite(PIN_ADDR_C, bitRead(channel, 2));
  digitalWrite(PIN_ADDR_D, bitRead(channel, 3));
  delayMicroseconds(100);

  // On ecrit la valeur courante
  digitalWrite(PIN_SIG, HIGH);
  delay(10);
}

void selectfilter(long freqf = 0, int filter = 1) {
  if (freqf != 0) {
    if (freqf > 30000000) {
      filter = 1;
    }
    else if (freqf < 2000000) {
      filter = 2;
    }
    else if (freqf < 4000000) {
      filter = 3;
    }
    else if (freqf < 10500000) {
      filter = 4;
    }
    else if (freqf < 21000000) {
      filter = 5;
    }
    else if (freqf < 30000000) {
      filter = 6;
    }
  }
  writeAnalogMux((filter - 1));
}

void selectantenna(int antenna) {
  antenna += 6;
  writeAnalogMux(resetantenna);
  delayMicroseconds(100);
  writeAnalogMux(antenna);
}

//******************************************************************
// LCD Function
//******************************************************************
void lcdmess(String mess, int line) {
  while (mess.length() < 16)mess = mess + " ";
  lcd.home ();
  lcd.setCursor(0, line);
  lcd.print(mess);
}

void LCDprintpoint() {
  lcd.setCursor(15, 1);
  if (LCDpoint) {
    lcd.print(".");
  }
  else {
    lcd.print(" ");
  }
  LCDpoint = ! LCDpoint;
}

//******************************************************************
// Clock correction functions
//******************************************************************
void PPSinterrupt()
{
  if (!CorectFlagCycle)tcount++;
  if (tcount == 4)                               // Start counting the 2.5 MHz signal from Si5351A CLK0
  {
    TCCR1B = 7;                                  //Clock on rising edge of pin 5
  }
  else if (tcount == 44)                              //The 40 second gate time elapsed - stop counting
  {
    TCCR1B = 0;                                  //Turn off counter
    meas_freqC = mult * 0x10000 + TCNT1;
    CorectFlag = true;
    TCNT1 = 0;                                   //Reset count to zero
    mult = 0;
    tcount = 0;                                  //Reset the seconds counter
  }
  sec++;
  if (sec >= 120)sec = 0;
  s_GpsOneSecTick = true;
}

void correctFreqSI() {
  measdif = (int32_t)(meas_freqC - (uint64_t)(100000000)); // Error E calculation
  calfact = (measdif * 5) + calfact_old; // compute the new calfact
  if ((abs(measdif_old) <= abs(measdif))) {
    calfact = calfact_old;
    if (calfact != 0)CorectFlagCycle = true;
    measdif_old = 2147483647;
  }
  else {
    CorectFlagCycle = false;
    calfact_old = calfact;
  }
  si5351.set_correction(calfact, SI5351_PLL_INPUT_XO);
  si5351.set_freq(250000000ULL, SI5351_CLK2);
  measdif_old = measdif;
  lcdmess("CalFact " +  String(calfact) + " " + String(CorectFlagCycle), 1);
  CorectFlag = false;
}

// Timer 1 overflow intrrupt vector.
ISR(TIMER1_OVF_vect)
{
  mult++;                                          //Increment multiplier
  TIFR1 = (1 << TOV1);                             //Clear overlow flag
}

//******************************************************************
// Locator calculation function
//******************************************************************

void calcLocator(char *dst, double lat, double lon) {
  int o1, o2, o3;
  int a1, a2, a3;
  double remainder;
  // longitude
  remainder = lon + 180.0;
  o1 = (int)(remainder / 20.0);
  remainder = remainder - (double)o1 * 20.0;
  o2 = (int)(remainder / 2.0);
  remainder = remainder - 2.0 * (double)o2;
  o3 = (int)(12.0 * remainder);

  // latitude
  remainder = lat + 90.0;
  a1 = (int)(remainder / 10.0);
  remainder = remainder - (double)a1 * 10.0;
  a2 = (int)(remainder);
  remainder = remainder - (double)a2;
  a3 = (int)(24.0 * remainder);
  dst[0] = (char)o1 + 'A';
  dst[1] = (char)a1 + 'A';
  dst[2] = (char)o2 + '0';
  dst[3] = (char)a2 + '0';
}

//******************************************************************
// Function for wait time to send
//******************************************************************

void gpsgatetime ()
{
  if (CorectFlagCycle) {
    cycle++;
    while ((Frequencys[cycle] == -1) && (cycle != ncycles))cycle++;
    if (cycle == ncycles)cycle = 0;
    if (Frequencys[cycle] == 0) {
      selectfilter();
      CorectFlagCycle = false;
      synctime = false;
    }
  }
  if (Frequencys[cycle] != 0)TX();
}

//******************************************************************
// TX Function
//******************************************************************

void TX() {
  sendTX = true;
  selectantenna(FtoAnt[cycle]);
  selectfilter(Frequencys[cycle]);
  digitalWrite(PAPin, HIGH);
  long freqWSPRSI = (Frequencys[cycle] + (long)(random(145, 155) * 10)) * 100;
  lcdmess(String(freqWSPRSI) + " C" + String(cycle) + " A" + String(FtoAnt[cycle]), 0);
  dtxinfo();
  waitticks();
  si5351.output_enable(SI5351_CLK0, 1);
  for (int element = 0; element < 162; element++) {
    si5351.set_freq((freqWSPRSI + (WSPRSISymb[element] * 14648) / 100), SI5351_CLK0);
    delay(680); delayMicroseconds(2666);
  }
  si5351.output_enable(SI5351_CLK0, 0);
  digitalWrite(PAPin, LOW);
  sendTX = false;
}

//******************************************************************
// sequence de programmation operateur
//******************************************************************

void initcyclesepprom() {
  for (byte i = 0; i <= ncycles; i++) {
    Frequencys[i] = EEPROMReadlong(i * 4);
  }
  for (byte i = 0; i <= ncycles; i++) {
    FtoAnt[i] = EEPROMReadlong((i * 4) + 100);
    delay(1);//bug epprom
  }
  for (byte i = 0; i <= 6; i++) {
    txCall[i] = char(int(EEPROMReadlong(((i * 4) + 400))));
    if (txCall[i] == '\0')break;
    delay(1);//bug epprom
  }
}

void savcyclesepprom() {
  for (byte i = 0; i <= ncycles; i++) {
    EEPROMWritelong(i * 4, Frequencys[i]);
  }
  for (byte i = 0; i <= ncycles; i++) {
    EEPROMWritelong(((i * 4) + 100), FtoAnt[i]);
  }
  for (byte i = 0; i <= sizeof(txCall); i++) {
    EEPROMWritelong(((i * 4) + 400), int(txCall[i]));
  }
}

void showprog() {
  for (int i = 0; i <= ncycles; i++) {
    if (Frequencys[i] != -1 && FtoAnt[i] != -1) {
      Serial.println("C" + String(i) + " freq:" + String(Frequencys[i]) + "hz");
      Serial.println("C" + String(i) + " ant:" + String(FtoAnt[i]));
    }
  }
  Serial.println("QRZ " + String(txCall));
}

void initprog() {
  lcdmess(F("Init..."), 0);

  Serial.println(F("s show infos"));
  Serial.println(F("d 01 del cycle 1"));
  Serial.println(F("a cycle/freq/ant add,max 20, (a 01/014095600/3)"));
  Serial.println(F("q set qrz"));
  Serial.println(F("r save"));

  while (inputStringUSBSerial[0] != 'e') {
    while (Serial.available()) {
      char inChar = (char)Serial.read();
      if (inChar != '\n') {
        inputStringUSBSerial += inChar;
      } else {
        stringCompleteUSBSerial = true;
      }
    }
    if (stringCompleteUSBSerial) {
      if (inputStringUSBSerial[0] == 'd') {
        Frequencys[inputStringUSBSerial.substring(2, 4).toInt()] = -1;
        FtoAnt[inputStringUSBSerial.substring(2, 4).toInt()] = -1;
      }
      if (inputStringUSBSerial[0] == 'a') {
        char tarray[10];
        inputStringUSBSerial.substring(5, 14).toCharArray(tarray, sizeof(tarray));
        Frequencys[inputStringUSBSerial.substring(2, 4).toInt()] = atol(tarray);
        FtoAnt[inputStringUSBSerial.substring(2, 4).toInt()] = inputStringUSBSerial.substring(15, 16).toInt();
      }
      if (inputStringUSBSerial[0] == 'r') {
        savcyclesepprom();
        initcyclesepprom();
        showprog();
        Serial.println(F("You can reset"));
      }
      if (inputStringUSBSerial[0] == 's') {
        showprog();
      }
      if (inputStringUSBSerial[0] == 'q') {
        inputStringUSBSerial.substring(2, 7).toCharArray(txCall, (inputStringUSBSerial.length() - 1)); 
      }
      inputStringUSBSerial = "";
      stringCompleteUSBSerial = false;
    }
  }
}


void EEPROMWritelong(int address, long value)
{
  //Decomposition from a long to 4 bytes by using bitshift.
  //One = Most significant -> Four = Least significant byte
  byte four = (value & 0xFF);
  byte three = ((value >> 8) & 0xFF);
  byte two = ((value >> 16) & 0xFF);
  byte one = ((value >> 24) & 0xFF);

  //Write the 4 bytes into the eeprom memory.
  EEPROM.write(address, four);
  EEPROM.write(address + 1, three);
  EEPROM.write(address + 2, two);
  EEPROM.write(address + 3, one);
}

long EEPROMReadlong(long address)
{
  //Read the 4 bytes from the eeprom memory.
  long four = EEPROM.read(address);
  long three = EEPROM.read(address + 1);
  long two = EEPROM.read(address + 2);
  long one = EEPROM.read(address + 3);

  //Return the recomposed long by using bitshift.
  return ((four << 0) & 0xFF) + ((three << 8) & 0xFFFF) + ((two << 16) & 0xFFFFFF) + ((one << 24) & 0xFFFFFFFF);
}


//******************************************************************
// Mains
//******************************************************************

void setup() {
  Serial.begin(9600);

  ////Serial init
  pinMode(A7, INPUT);
  pinMode(A0, INPUT);
  pinMode(A1, INPUT);
  pinMode(PAPin, OUTPUT);
  digitalWrite(PAPin, LOW);
  ss.begin(9600);

  //SI5351 init -17463
  si5351.init(SI5351_CRYSTAL_LOAD_8PF, 0, 0);
  si5351.set_correction(0, SI5351_PLL_INPUT_XO);
  si5351.set_pll(SI5351_PLL_FIXED, SI5351_PLLA);
  si5351.drive_strength(SI5351_CLK2, SI5351_DRIVE_8MA);
  si5351.drive_strength(SI5351_CLK0, SI5351_DRIVE_8MA);
  si5351.set_freq(250000000ULL, SI5351_CLK2);// 250000000ULL 259547697
  si5351.set_freq(1000000ULL, SI5351_CLK1);
  si5351.set_freq(1000000ULL, SI5351_CLK0);
  si5351.output_enable(SI5351_CLK2, 1);
  si5351.output_enable(SI5351_CLK1, 0);
  si5351.output_enable(SI5351_CLK0, 0);
  si5351.update_status();
  delay(500);


  //PPS correction init
  //Set up Timer1 as a frequency counter - input at pin 5
  TCCR1B = 0;                                    //Disable Timer5 during setup
  TCCR1A = 0;                                    //Reset
  TCNT1  = 0;                                    //Reset counter to zero
  TIFR1  = 1;                                    //Reset overflow
  TIMSK1 = 1;                                    //Turn on overflow flag
  pinMode(ppsPin, INPUT);// Inititalize GPS 1pps input
  attachInterrupt(digitalPinToInterrupt(ppsPin), PPSinterrupt, RISING);// Set 1PPS pin 2 for external interrupt input

  // Place les broches d'adresse en sortie et à LOW pour filtres et antennes
  pinMode(PIN_SIG, OUTPUT);
  pinMode(PIN_ADDR_A, OUTPUT);
  pinMode(PIN_ADDR_B, OUTPUT);
  pinMode(PIN_ADDR_C, OUTPUT);
  pinMode(PIN_ADDR_D, OUTPUT);
  digitalWrite(PIN_SIG, LOW);
  digitalWrite(PIN_ADDR_A, LOW);
  digitalWrite(PIN_ADDR_B, LOW);
  digitalWrite(PIN_ADDR_C, LOW);
  digitalWrite(PIN_ADDR_D, LOW);

  lcd.begin (16, 2);
  lcd.setBacklight(HIGH);
  lcdmess(F("WSPR Beacon"), 0);
  lcdmess(F("Tests"), 1);
  delay(2000);

  //test antennas last on 1
  for (int i = 6; i >= 1; i--) {
    selectantenna(i);
    lcdmess("Ant " + String(i), 1);
    delay(200);
  }

  //test filters last on bypass
  for (int i = 6; i >= 1; i--) {
    selectfilter(0, i);
    lcdmess("Fil " + String(i), 1);
    delay(200);
  }

  lcdmess(txCall, 1);
  Serial.println(F("Send key go init"));
  initcyclesepprom();
  delay(5000);
  if (Serial.available()) {
    initprog();
  }
}



void loop() {
  while (synctime) {
    waitticks();
    if (!sendTX) {
      if (CorectFlag && (Frequencys[cycle] == 0))correctFreqSI();
      if (sec == 0)gpsgatetime();
      lcdmess("Sleep C" + String(cycle) + " " + String(sec) + " s" , 0);
      LCDprintpoint();
    }
    s_GpsOneSecTick = false;
  }
  while (!synctime) {
    synctimegps();
  }
  dtxinfo();
}


void synctimegps() {
  waitticks();
  waitticks();
  if (ss.available()) {
    if (gps.encode(ss.read())) {
      if (gps.location.isUpdated()) {
        if (strcmp(txLoc, "JJ00") == 0) {
          calcLocator(txLoc, gps.location.lat(), gps.location.lng());
          if (WSPRSISymbGen == 0)WSPRSIEncode(txCall, txLoc, txPow);
          s_GpsOneSecTick = false;
        } else if (gps.date.isValid() && gps.time.isValid() && (int(gps.time.second()) > 2)) {
          sec = int(gps.time.second()) + (int((gps.time.minute() % 2 )) * 60);
          s_GpsOneSecTick = false;
          waitticks();
          synctime = true;
          ss.end();
        }
      } else if (s_GpsOneSecTick) {
        s_GpsOneSecTick = false;
        lcdmess(F("GPS Sync."), 0);
        LCDprintpoint();
      }
    }
  } else {
    if (!ss.isListening())ss.begin(9600);
    ss.flush();
  }
}

void dtxinfo(){
  lcdmess(String((char*)txCall) + " " + String((char*)txLoc) + " " + String((char*)txPow) + "d", 1);
}

/*************************************************************************
  WSPRSI message encoder
  http://www.g4jnt.com/Coding%5CWSPRSI_Coding_Process.pdf
**************************************************************************/
void WSPRSIEncode(char * callWSPRSIProc, char * locWSPRSIProc, char * powWSPRSIProc)
{
  char callsign[] = "      ";
  char encode_call[] = "       ";
  char locator[] = "    ";
  char power[] = "00";
  byte pwr_lvl;
  char ch;
  int counter = 0;

  ch = *callWSPRSIProc++;
  while (ch != '\0')
  {
    callsign[counter] = ch;
    ch = *callWSPRSIProc++;
    counter++;
  }
  counter = 0;
  ch = *locWSPRSIProc++;
  while (ch != '\0')
  {
    locator[counter] = ch;
    ch = *locWSPRSIProc++;
    counter++;
  }

  counter = 0;
  ch = *powWSPRSIProc++;
  while (ch != '\0')
  {
    power[counter] = ch;
    ch = *powWSPRSIProc++;
    counter++;
  }

  for (int i = 0; i < 6; i++) {
    if (callsign[i] == ' ')
    {
      callsign[i] = callsign[i] + 4;
    }
    else if (callsign[i] > 47 && callsign[i] < 58)
    {
      callsign[i] = callsign[i] - 48;
    }
    else if (callsign[i] > 64 && callsign[i] < 91)
    {
      callsign[i] = callsign[i] - 55;
    }
    else if (callsign[i] > 96 && callsign[i] < 123)
    {
      callsign[i] = callsign[i] - 87;
    }
  }

  if (callsign[2] > 9) {
    encode_call[0] = 36;
    for (int i = 0; i < 5; i++)
    {
      encode_call[i + 1] = callsign [i];
    }
  }

  /*****************************************************************
    Callsign encoding
  *****************************************************************/
  unsigned long N;

  N = encode_call[0];
  N = 36 * N + encode_call[1];
  N = 10 * N + encode_call[2];
  N = 27 * N + encode_call[3] - 10;
  N = 27 * N + encode_call[4] - 10;
  N = 27 * N + encode_call[5] - 10;

  /*****************************************************************
    Locator encoding
  *****************************************************************/
  unsigned long M1;

  for (int i = 0; i < 4; i++) {
    if (locator[i] > 64 && locator[i] < 83) {
      locator[i] = locator[i] - 65;
    }
    else if (locator[i] > 96 && locator[i] < 123)
    {
      locator[i] = locator[i] - 97;
    }
    else if (locator[i] > 47 && locator[i] < 58) {
      locator[i] = locator[i] - 48;
    }
  }

  M1 = 180 * (179 - 10 * locator[0] - locator[2]) + 10 * locator[1] + locator[3];

  /*****************************************************************
    Power encoding
  *****************************************************************/
  pwr_lvl = 10 * (power[0] - '0') + power[1] - '0';

  /*****************************************************************
    Locator + power packing
  *****************************************************************/
  unsigned long M;
  M = 128 * M1 + pwr_lvl + 64;

  /*****************************************************************
    Bit packing
  *****************************************************************/
  unsigned char c[11];

  c[0] = N >> 20; // 8 MSB
  c[1] = N >> 12; // 8 next
  c[2] = N >> 4;  // 8 next
  c[3] = N << 4;  // 4 LSB -> 4 MSB c[3]
  c[3] = c[3] + (0x0f & M >> 18);
  c[4] = M >> 10;
  c[5] = M >> 2;
  c[6] = M << 6;
  c[7] = 0;
  c[8] = 0;
  c[9] = 0;
  c[10] = 0;

  /*****************************************************************
    Convolutional encoding
  *****************************************************************/
  unsigned long reg = 0;
  int conv;
  int conv_byte = 0;
  int compt_bits = 0;
  byte S[162];

  conv = c[0];
  int m = 0;

  for (int i = 0; i < 81; i++) {
    if (compt_bits % 8 == 0) {
      conv = c[conv_byte];
      conv_byte++;
    }
    reg = reg | bitRead(conv, 7);

    S[m++] = WSPRSIparity(reg & 0xf2d05351);
    S[m++] = WSPRSIparity(reg & 0xe4613c47);

    compt_bits++;
    conv = conv << 1;
    reg = reg << 1;
  }


  /*****************************************************************
    Interleaving
  *****************************************************************/

  byte D[162];
  int p = 0;
  byte temp = 0;
  int j = 0;

  for (int i = 0; i < 256; i++)
  {
    j = i;
    temp = j;
    for (int k = 0; k < 8; k++) {
      bitWrite(j, k , bitRead(temp, 7 - k));
    }
    if (j < 162) {
      D[j] = S[p];
      p++;
    }
  }

  /*****************************************************************
    Merge with sync vector
  *****************************************************************/
  const static byte Sync[] PROGMEM = {1, 1, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 1, 1, 1, 0, 0, 0, 1, 0, 0, 1, 0, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 1, 0, 1, 0, 0, 0, 0, 0, 0, 1, 0, 1, 1,
                                      0, 0, 1, 1, 0, 1, 0, 0, 0, 1, 1, 0, 1, 0, 0, 0, 0, 1, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 0, 1, 0, 0, 1, 0, 1, 1, 0, 0, 0, 1, 1, 0, 1, 0, 1, 0, 0, 0, 1, 0,
                                      0, 0, 0, 0, 1, 0, 0, 1, 0, 0, 1, 1, 1, 0, 1, 1, 0, 0, 1, 1, 0, 1, 0, 0, 0, 1, 1, 1, 0, 0, 0, 0, 0, 1, 0, 1, 0, 0, 1, 1, 0, 0, 0, 0, 0, 0, 0, 1, 1, 0,
                                      1, 0, 1, 1, 0, 0, 0, 1, 1, 0, 0, 0
                                     };

  for (int i = 0; i < 162; i++) {
    WSPRSISymb[i] = pgm_read_word(&Sync[i]) + 2 * D[i];
  }
  WSPRSISymbGen = 1;
}

/*****************************************************************
  Parity calculator
*****************************************************************/
byte WSPRSIparity(unsigned long tempo) {
  byte par = 0;
  for (int k = 0; k < 32; k++) {
    par = par ^ (tempo & 0x01);
    tempo = tempo >> 1;
  }
  return par;
}

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

184

185

186

187

188

189

190

191

192

193

194

195

196

197

198

199

200

201

202

203

204

205

206

207

208

209

210

211

212

213

214

215

216

217

218

219

220

221

222

223

224

225

226

227

228

229

230

231

232

233

234

235

236

237

238

239

240

241

242

243

244

245

246

247

248

249

250

251

252

253

254

255

256

257

258

259

260

261

262

263

264

265

266

267

268

269

270

271

272

273

274

275

276

277

278

279

280

281

282

283

284

285

286

287

288

289

290

291

292

293

294

295

296

297

298

299

300

301

302

303

304

305

306

307

308

309

310

311

312

313

314

315

316

317

318

319

320

321

322

323

324

325

326

327

328

329

330

331

332

333

334

335

336

337

338

339

340

341

342

343

344

345

346

347

348

349

350

351

352

353

354

355

356

357

358

359

360

361

362

363

364

365

366

367

368

369

370

371

372

373

374

375

376

377

378

379

380

381

382

383

384

385

386

387

388

389

390

391

392

393

394

395

396

397

398

399

400

401

402

403

404

405

406

407

408

409

410

411

412

413

414

415

416

417

418

419

420

421

422

423

424

425

426

427

428

429

430

431

432

433

434

435

436

437

438

439

440

441

442

443

444

445

446

447

448

449

450

451

452

453

454

455

456

457

458

459

460

461

462

463

464

465

466

467

468

469

470

471

472

473

474

475

476

477

478

479

480

481

482

483

484

485

486

487

488

489

490

491

492

493

494

495

496

497

498

499

500

501

502

503

504

505

506

507

508

509

510

511

512

513

514

515

516

517

518

519

520

521

522

523

524

525

526

527

528

529

530

531

532

533

534

535

536

537

538

539

540

541

542

543

544

545

546

547

548

549

550

551

552

553

554

555

556

557

558

559

560

561

562

563

564

565

566

567

568

569

570

571

572

573

574

575

576

577

578

579

580

581

582

583

584

585

586

587

588

589

590

591

592

593

594

595

596

597

598

599

600

601

602

603

604

605

606

607

608

609

610

611

612

613

614

615

616

617

618

619

620

621

622

623

624

625

626

627

628

629

630

631

632

633

634

635

636

637

638

639

640

641

642

643

644

645

646

647

648

649

650

651

652

653

654

655

656

657

658

659

660

661

662

663

664

665

666

667

668

669

670

671

672

673

674

675

676

677

678

679

680

681

682

683

684

685

686

687

688

689

690

691

692

693

694

695

696

697

698

699

700

701

702

703

704

705

706

707

708

709

710

711

712

713

714

715

#include <SoftwareSerial.h>

#include <TinyGPS++.h>

#include "si5351.h"

#include "Wire.h"

#include <LiquidCrystal_I2C.h>

#include <EEPROM.h>

LiquidCrystal_I2C lcd(0x3F, 2, 1, 0, 4, 5, 6, 7, 3, POSITIVE);

Si5351 si5351;

SoftwareSerial ss(7, 6);

TinyGPSPlus gps;

String inputStringUSBSerial = "";

boolean stringCompleteUSBSerial = false;

#define ppsPin 2

#define PAPin 3

// Broches d'adresse filtres antennes

const byte PIN_ADDR_A = 8;

const byte PIN_ADDR_B = 9;

const byte PIN_ADDR_C = 10;

const byte PIN_ADDR_D = 11;

// Broche de signal filtres antennes

const byte PIN_SIG = 12;

#define resetantenna 6

unsigned int tcount = 2;

unsigned long mult = 0;

int32_t measdif = 0, measdif_old = 2147483647, calfact = 0, calfact_old = 0;

uint64_t meas_freqC = 0;

volatile boolean CorectFlag = false;

volatile boolean CorectFlagCycle = false;

volatile boolean sendTX = false;

volatile bool s_GpsOneSecTick = false;

volatile boolean LCDpoint = false;

char txCall[] = "F4HTB";

char txLoc[] = "JJ00";//"JJ00";

char txPow[] = "30";

byte sec = 0;

volatile bool synctime = false;

byte cycle = 0;

byte WSPRSISymb[162];

bool WSPRSISymbGen = 0;

unsigned long Frequencys[20] = {};//{0,14095600L, 14095600L, 0, 14095600L, 14095600L};//Frequency by cycle

byte FtoAnt[20] = {};//{1,1, 2, 1, 2, 1}; //antenna by cycle

#define ncycles 19 //0 to n ° cycles

//******************************************************************

// Others functions

//******************************************************************

void waitticks() {

while (!s_GpsOneSecTick) {

delayMicroseconds(100);

}

/*****************************************************************

write for filters and antenna

*****************************************************************/

void writeAnalogMux(byte channel) {

// On disable la valeur courante

digitalWrite(PIN_SIG, LOW);

delayMicroseconds(100);

// On selectionne la voie

digitalWrite(PIN_ADDR_A, bitRead(channel, 0));

digitalWrite(PIN_ADDR_B, bitRead(channel, 1));

digitalWrite(PIN_ADDR_C, bitRead(channel, 2));

digitalWrite(PIN_ADDR_D, bitRead(channel, 3));

delayMicroseconds(100);

// On ecrit la valeur courante

digitalWrite(PIN_SIG, HIGH);

delay(10);

}

void selectfilter(long freqf = 0, int filter = 1) {

if (freqf != 0) {

if (freqf > 30000000) {

filter = 1;

}

else if (freqf < 2000000) {

filter = 2;

}

else if (freqf < 4000000) {

filter = 3;

}

else if (freqf < 10500000) {

filter = 4;

}

else if (freqf < 21000000) {

filter = 5;

}

else if (freqf < 30000000) {

filter = 6;

}

writeAnalogMux((filter - 1));

}

void selectantenna(int antenna) {

antenna += 6;

writeAnalogMux(resetantenna);

delayMicroseconds(100);

writeAnalogMux(antenna);

}

//******************************************************************

// LCD Function

//******************************************************************

void lcdmess(String mess, int line) {

while (mess.length() < 16)mess = mess + " ";

lcd.home ();

lcd.setCursor(0, line);

lcd.print(mess);

}

void LCDprintpoint() {

lcd.setCursor(15, 1);

if (LCDpoint) {

lcd.print(".");

}

else {

lcd.print(" ");

}

LCDpoint = ! LCDpoint;

}

//******************************************************************

// Clock correction functions

//******************************************************************

void PPSinterrupt()

{

if (!CorectFlagCycle)tcount++;

if (tcount == 4) // Start counting the 2.5 MHz signal from Si5351A CLK0

{

TCCR1B = 7; //Clock on rising edge of pin 5

}

else if (tcount == 44) //The 40 second gate time elapsed - stop counting

{

TCCR1B = 0; //Turn off counter

meas_freqC = mult * 0x10000 + TCNT1;

CorectFlag = true;

TCNT1 = 0; //Reset count to zero

mult = 0;

tcount = 0; //Reset the seconds counter

}

sec++;

if (sec >= 120)sec = 0;

s_GpsOneSecTick = true;

}

void correctFreqSI() {

measdif = (int32_t)(meas_freqC - (uint64_t)(100000000)); // Error E calculation

calfact = (measdif * 5) + calfact_old; // compute the new calfact

if ((abs(measdif_old) <= abs(measdif))) {

calfact = calfact_old;

if (calfact != 0)CorectFlagCycle = true;

measdif_old = 2147483647;

}

else {

CorectFlagCycle = false;

calfact_old = calfact;

}

si5351.set_correction(calfact, SI5351_PLL_INPUT_XO);

si5351.set_freq(250000000ULL, SI5351_CLK2);

measdif_old = measdif;

lcdmess("CalFact " + String(calfact) + " " + String(CorectFlagCycle), 1);

CorectFlag = false;

}

// Timer 1 overflow intrrupt vector.

ISR(TIMER1_OVF_vect)

{

mult++; //Increment multiplier

TIFR1 = (1 << TOV1); //Clear overlow flag

}

//******************************************************************

// Locator calculation function

//******************************************************************

void calcLocator(char *dst, double lat, double lon) {

int o1, o2, o3;

int a1, a2, a3;

double remainder;

// longitude

remainder = lon + 180.0;

o1 = (int)(remainder / 20.0);

remainder = remainder - (double)o1 * 20.0;

o2 = (int)(remainder / 2.0);

remainder = remainder - 2.0 * (double)o2;

o3 = (int)(12.0 * remainder);

// latitude

remainder = lat + 90.0;

a1 = (int)(remainder / 10.0);

remainder = remainder - (double)a1 * 10.0;

a2 = (int)(remainder);

remainder = remainder - (double)a2;

a3 = (int)(24.0 * remainder);

dst[0] = (char)o1 + 'A';

dst[1] = (char)a1 + 'A';

dst[2] = (char)o2 + '0';

dst[3] = (char)a2 + '0';

}

//******************************************************************

// Function for wait time to send

//******************************************************************

void gpsgatetime ()

{

if (CorectFlagCycle) {

cycle++;

while ((Frequencys[cycle] == -1) && (cycle != ncycles))cycle++;

if (cycle == ncycles)cycle = 0;

if (Frequencys[cycle] == 0) {

selectfilter();

CorectFlagCycle = false;

synctime = false;

}

if (Frequencys[cycle] != 0)TX();

}

//******************************************************************

// TX Function

//******************************************************************

void TX() {

sendTX = true;

selectantenna(FtoAnt[cycle]);

selectfilter(Frequencys[cycle]);

digitalWrite(PAPin, HIGH);

long freqWSPRSI = (Frequencys[cycle] + (long)(random(145, 155) * 10)) * 100;

lcdmess(String(freqWSPRSI) + " C" + String(cycle) + " A" + String(FtoAnt[cycle]), 0);

dtxinfo();

waitticks();

si5351.output_enable(SI5351_CLK0, 1);

for (int element = 0; element < 162; element++) {

si5351.set_freq((freqWSPRSI + (WSPRSISymb[element] * 14648) / 100), SI5351_CLK0);

delay(680); delayMicroseconds(2666);

}

si5351.output_enable(SI5351_CLK0, 0);

digitalWrite(PAPin, LOW);

sendTX = false;

}

//******************************************************************

// sequence de programmation operateur

//******************************************************************

void initcyclesepprom() {

for (byte i = 0; i <= ncycles; i++) {

Frequencys[i] = EEPROMReadlong(i * 4);

}

for (byte i = 0; i <= ncycles; i++) {

FtoAnt[i] = EEPROMReadlong((i * 4) + 100);

delay(1);//bug epprom

}

for (byte i = 0; i <= 6; i++) {

txCall[i] = char(int(EEPROMReadlong(((i * 4) + 400))));

if (txCall[i] == '\0')break;

delay(1);//bug epprom

}

void savcyclesepprom() {

for (byte i = 0; i <= ncycles; i++) {

EEPROMWritelong(i * 4, Frequencys[i]);

}

for (byte i = 0; i <= ncycles; i++) {

EEPROMWritelong(((i * 4) + 100), FtoAnt[i]);

}

for (byte i = 0; i <= sizeof(txCall); i++) {

EEPROMWritelong(((i * 4) + 400), int(txCall[i]));

}

void showprog() {

for (int i = 0; i <= ncycles; i++) {

if (Frequencys[i] != -1 && FtoAnt[i] != -1) {

Serial.println("C" + String(i) + " freq:" + String(Frequencys[i]) + "hz");

Serial.println("C" + String(i) + " ant:" + String(FtoAnt[i]));

}

Serial.println("QRZ " + String(txCall));

}

void initprog() {

lcdmess(F("Init..."), 0);

Serial.println(F("s show infos"));

Serial.println(F("d 01 del cycle 1"));

Serial.println(F("a cycle/freq/ant add,max 20, (a 01/014095600/3)"));

Serial.println(F("q set qrz"));

Serial.println(F("r save"));

while (inputStringUSBSerial[0] != 'e') {

while (Serial.available()) {

char inChar = (char)Serial.read();

if (inChar != '\n') {

inputStringUSBSerial += inChar;

} else {

stringCompleteUSBSerial = true;

}

if (stringCompleteUSBSerial) {

if (inputStringUSBSerial[0] == 'd') {

Frequencys[inputStringUSBSerial.substring(2, 4).toInt()] = -1;

FtoAnt[inputStringUSBSerial.substring(2, 4).toInt()] = -1;

}

if (inputStringUSBSerial[0] == 'a') {

char tarray[10];

inputStringUSBSerial.substring(5, 14).toCharArray(tarray, sizeof(tarray));

Frequencys[inputStringUSBSerial.substring(2, 4).toInt()] = atol(tarray);

FtoAnt[inputStringUSBSerial.substring(2, 4).toInt()] = inputStringUSBSerial.substring(15, 16).toInt();

}

if (inputStringUSBSerial[0] == 'r') {

savcyclesepprom();

initcyclesepprom();

showprog();

Serial.println(F("You can reset"));

}

if (inputStringUSBSerial[0] == 's') {

showprog();

}

if (inputStringUSBSerial[0] == 'q') {

inputStringUSBSerial.substring(2, 7).toCharArray(txCall, (inputStringUSBSerial.length() - 1));

}

inputStringUSBSerial = "";

stringCompleteUSBSerial = false;

}

void EEPROMWritelong(int address, long value)

{

//Decomposition from a long to 4 bytes by using bitshift.

//One = Most significant -> Four = Least significant byte

byte four = (value & 0xFF);

byte three = ((value >> 8) & 0xFF);

byte two = ((value >> 16) & 0xFF);

byte one = ((value >> 24) & 0xFF);

//Write the 4 bytes into the eeprom memory.

EEPROM.write(address, four);

EEPROM.write(address + 1, three);

EEPROM.write(address + 2, two);

EEPROM.write(address + 3, one);

}

long EEPROMReadlong(long address)

{

//Read the 4 bytes from the eeprom memory.

long four = EEPROM.read(address);

long three = EEPROM.read(address + 1);

long two = EEPROM.read(address + 2);

long one = EEPROM.read(address + 3);

//Return the recomposed long by using bitshift.

return ((four << 0) & 0xFF) + ((three << 8) & 0xFFFF) + ((two << 16) & 0xFFFFFF) + ((one << 24) & 0xFFFFFFFF);

}

//******************************************************************

// Mains

//******************************************************************

void setup() {

Serial.begin(9600);

////Serial init

pinMode(A7, INPUT);

pinMode(A0, INPUT);

pinMode(A1, INPUT);

pinMode(PAPin, OUTPUT);

digitalWrite(PAPin, LOW);

ss.begin(9600);

//SI5351 init -17463

si5351.init(SI5351_CRYSTAL_LOAD_8PF, 0, 0);

si5351.set_correction(0, SI5351_PLL_INPUT_XO);

si5351.set_pll(SI5351_PLL_FIXED, SI5351_PLLA);

si5351.drive_strength(SI5351_CLK2, SI5351_DRIVE_8MA);

si5351.drive_strength(SI5351_CLK0, SI5351_DRIVE_8MA);

si5351.set_freq(250000000ULL, SI5351_CLK2);// 250000000ULL 259547697

si5351.set_freq(1000000ULL, SI5351_CLK1);

si5351.set_freq(1000000ULL, SI5351_CLK0);

si5351.output_enable(SI5351_CLK2, 1);

si5351.output_enable(SI5351_CLK1, 0);

si5351.output_enable(SI5351_CLK0, 0);

si5351.update_status();

delay(500);

//PPS correction init

//Set up Timer1 as a frequency counter - input at pin 5

TCCR1B = 0; //Disable Timer5 during setup

TCCR1A = 0; //Reset

TCNT1 = 0; //Reset counter to zero

TIFR1 = 1; //Reset overflow

TIMSK1 = 1; //Turn on overflow flag

pinMode(ppsPin, INPUT);// Inititalize GPS 1pps input

attachInterrupt(digitalPinToInterrupt(ppsPin), PPSinterrupt, RISING);// Set 1PPS pin 2 for external interrupt input

// Place les broches d'adresse en sortie et à LOW pour filtres et antennes

pinMode(PIN_SIG, OUTPUT);

pinMode(PIN_ADDR_A, OUTPUT);

pinMode(PIN_ADDR_B, OUTPUT);

pinMode(PIN_ADDR_C, OUTPUT);

pinMode(PIN_ADDR_D, OUTPUT);

digitalWrite(PIN_SIG, LOW);

digitalWrite(PIN_ADDR_A, LOW);

digitalWrite(PIN_ADDR_B, LOW);

digitalWrite(PIN_ADDR_C, LOW);

digitalWrite(PIN_ADDR_D, LOW);

lcd.begin (16, 2);

lcd.setBacklight(HIGH);

lcdmess(F("WSPR Beacon"), 0);

lcdmess(F("Tests"), 1);

delay(2000);

//test antennas last on 1

for (int i = 6; i >= 1; i--) {

selectantenna(i);

lcdmess("Ant " + String(i), 1);

delay(200);

}

//test filters last on bypass

for (int i = 6; i >= 1; i--) {

selectfilter(0, i);

lcdmess("Fil " + String(i), 1);

delay(200);

}

lcdmess(txCall, 1);

Serial.println(F("Send key go init"));

initcyclesepprom();

delay(5000);

if (Serial.available()) {

initprog();

}

void loop() {

while (synctime) {

waitticks();

if (!sendTX) {

if (CorectFlag && (Frequencys[cycle] == 0))correctFreqSI();

if (sec == 0)gpsgatetime();

lcdmess("Sleep C" + String(cycle) + " " + String(sec) + " s" , 0);

LCDprintpoint();

}

s_GpsOneSecTick = false;

}

while (!synctime) {

synctimegps();

}

dtxinfo();

}

void synctimegps() {

waitticks();

if (ss.available()) {

if (gps.encode(ss.read())) {

if (gps.location.isUpdated()) {

if (strcmp(txLoc, "JJ00") == 0) {

calcLocator(txLoc, gps.location.lat(), gps.location.lng());

if (WSPRSISymbGen == 0)WSPRSIEncode(txCall, txLoc, txPow);

s_GpsOneSecTick = false;

} else if (gps.date.isValid() && gps.time.isValid() && (int(gps.time.second()) > 2)) {

sec = int(gps.time.second()) + (int((gps.time.minute() % 2 )) * 60);

s_GpsOneSecTick = false;

waitticks();

synctime = true;

ss.end();

}

} else if (s_GpsOneSecTick) {

s_GpsOneSecTick = false;

lcdmess(F("GPS Sync."), 0);

LCDprintpoint();

}

} else {

if (!ss.isListening())ss.begin(9600);

ss.flush();

}

void dtxinfo(){

lcdmess(String((char*)txCall) + " " + String((char*)txLoc) + " " + String((char*)txPow) + "d", 1);

}

/*************************************************************************

WSPRSI message encoder

http://www.g4jnt.com/Coding%5CWSPRSI_Coding_Process.pdf

**************************************************************************/

void WSPRSIEncode(char * callWSPRSIProc, char * locWSPRSIProc, char * powWSPRSIProc)

{

char callsign[] = " ";

char encode_call[] = " ";

char locator[] = " ";

char power[] = "00";

byte pwr_lvl;

char ch;

int counter = 0;

ch = *callWSPRSIProc++;

while (ch != '\0')

{

callsign[counter] = ch;

ch = *callWSPRSIProc++;

counter++;

}

counter = 0;

ch = *locWSPRSIProc++;

while (ch != '\0')

{

locator[counter] = ch;

ch = *locWSPRSIProc++;

counter++;

}

counter = 0;

ch = *powWSPRSIProc++;

while (ch != '\0')

{

power[counter] = ch;

ch = *powWSPRSIProc++;

counter++;

}

for (int i = 0; i < 6; i++) {

if (callsign[i] == ' ')

{

callsign[i] = callsign[i] + 4;

}

else if (callsign[i] > 47 && callsign[i] < 58)

{

callsign[i] = callsign[i] - 48;

}

else if (callsign[i] > 64 && callsign[i] < 91)

{

callsign[i] = callsign[i] - 55;

}

else if (callsign[i] > 96 && callsign[i] < 123)

{

callsign[i] = callsign[i] - 87;

}

if (callsign[2] > 9) {

encode_call[0] = 36;

for (int i = 0; i < 5; i++)

{

encode_call[i + 1] = callsign [i];

}

/*****************************************************************

Callsign encoding

*****************************************************************/

unsigned long N;

N = encode_call[0];

N = 36 * N + encode_call[1];

N = 10 * N + encode_call[2];

N = 27 * N + encode_call[3] - 10;

N = 27 * N + encode_call[4] - 10;

N = 27 * N + encode_call[5] - 10;

/*****************************************************************

Locator encoding

*****************************************************************/

unsigned long M1;

for (int i = 0; i < 4; i++) {

if (locator[i] > 64 && locator[i] < 83) {

locator[i] = locator[i] - 65;

}

else if (locator[i] > 96 && locator[i] < 123)

{

locator[i] = locator[i] - 97;

}

else if (locator[i] > 47 && locator[i] < 58) {

locator[i] = locator[i] - 48;

}

M1 = 180 * (179 - 10 * locator[0] - locator[2]) + 10 * locator[1] + locator[3];

/*****************************************************************

Power encoding

*****************************************************************/

pwr_lvl = 10 * (power[0] - '0') + power[1] - '0';

/*****************************************************************

Locator + power packing

*****************************************************************/

unsigned long M;

M = 128 * M1 + pwr_lvl + 64;

/*****************************************************************

Bit packing

*****************************************************************/

unsigned char c[11];

c[0] = N >> 20; // 8 MSB

c[1] = N >> 12; // 8 next

c[2] = N >> 4; // 8 next

c[3] = N << 4; // 4 LSB -> 4 MSB c[3]

c[3] = c[3] + (0x0f & M >> 18);

c[4] = M >> 10;

c[5] = M >> 2;

c[6] = M << 6;

c[7] = 0;

c[8] = 0;

c[9] = 0;

c[10] = 0;

/*****************************************************************

Convolutional encoding

*****************************************************************/

unsigned long reg = 0;

int conv;

int conv_byte = 0;

int compt_bits = 0;

byte S[162];

conv = c[0];

int m = 0;

for (int i = 0; i < 81; i++) {

if (compt_bits % 8 == 0) {

conv = c[conv_byte];

conv_byte++;

}

reg = reg | bitRead(conv, 7);

S[m++] = WSPRSIparity(reg & 0xf2d05351);

S[m++] = WSPRSIparity(reg & 0xe4613c47);

compt_bits++;

conv = conv << 1;

reg = reg << 1;

}

/*****************************************************************

Interleaving

*****************************************************************/

byte D[162];

int p = 0;

byte temp = 0;

int j = 0;

for (int i = 0; i < 256; i++)

{

j = i;

temp = j;

for (int k = 0; k < 8; k++) {

bitWrite(j, k , bitRead(temp, 7 - k));

}

if (j < 162) {

D[j] = S[p];

p++;

}

/*****************************************************************

Merge with sync vector

*****************************************************************/

const static byte Sync[] PROGMEM = {1, 1, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 1, 1, 1, 0, 0, 0, 1, 0, 0, 1, 0, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 1, 0, 1, 0, 0, 0, 0, 0, 0, 1, 0, 1, 1,

0, 0, 1, 1, 0, 1, 0, 0, 0, 1, 1, 0, 1, 0, 0, 0, 0, 1, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 0, 1, 0, 0, 1, 0, 1, 1, 0, 0, 0, 1, 1, 0, 1, 0, 1, 0, 0, 0, 1, 0,

0, 0, 0, 0, 1, 0, 0, 1, 0, 0, 1, 1, 1, 0, 1, 1, 0, 0, 1, 1, 0, 1, 0, 0, 0, 1, 1, 1, 0, 0, 0, 0, 0, 1, 0, 1, 0, 0, 1, 1, 0, 0, 0, 0, 0, 0, 0, 1, 1, 0,

1, 0, 1, 1, 0, 0, 0, 1, 1, 0, 0, 0

};

for (int i = 0; i < 162; i++) {

WSPRSISymb[i] = pgm_read_word(&Sync[i]) + 2 * D[i];

}

WSPRSISymbGen = 1;

}

/*****************************************************************

Parity calculator

*****************************************************************/

byte WSPRSIparity(unsigned long tempo) {

byte par = 0;

for (int k = 0; k < 32; k++) {

par = par ^ (tempo & 0x01);

tempo = tempo >> 1;

}

return par;

}

II. Amplifier

J’utilise un amplificateur 1w trouvé sur ebay.

J’y ai adjoint un relai:

Commandé par:

III.Platine de filtres

Kicad file here:Filtres_v3

1.Le Schema

Pour les valeur des self et condensateur se reporter à excellent site:

http://www.wa4dsy.net/filter/filterdesign.html

Puis http://toroids.info/ pour le bobinage des tores.

Utilisez des FT37-2 et FT37-6.

2.PCB

3.Mesures au VNA:

a)Le bypass pour 2222m, 630m, 50mhz et 144mhz. (filtre à mettre sur la sortie sélectionnée ou au cul de l’antenne…)

b)160m

c)80m

d)40m, 30m

e)20m, 17m

f)15m, 12m, 10m

4.La photo

IV.Commutateur d’antennes

Kicad file here:commutateur_v3

1.Schéma

2.PCB

V.Commande filtres et antennes

1.Schéma

A venir

2.Module:

Auquel j’ai adjoint des 2N2222 + R 1Kohm.

3.Photo

In Progress!!!

TODO Liste:

-Finir platine commutateur antennes.

2 réflexions au sujet de « Balise WSPR Multibandes, 1w, syncho GPS,multi antennes et filtres (update 28/07/2018) »

F1EYG dit :

1 novembre 2018 à 10 h 11 min

Superbe construction !!
Je teste actuellement deux solution , la premiere batie autour d’un pi mais j ai effectivement a rajouter des fltres passe bande et surtout leur commande et c’est difficille d’inclure ce code dans un code deja existant !!
La seconde autour d’un redpitaya !! impressionant mais la platine est cher pour faire juste une balise
Votre solution est super mais j ai un pb avec la realisation des cuivres ! avez vous une solution
73
F1EYG

Répondre
1. F4HTB dit :
  
  3 novembre 2018 à 16 h 46 min
  
  Bonjour Cher OM.
  
  Concernant la réalisation des cuivres, je les fais moi même.
  Je n’ai pas réellement de solutions à vous proposer.
  
  J’utilise la technique de l’acide chlorhydrique et eau oxygénée qui se révèle très pratique pour tirer des prototypes.
  Concernant l’insolation, je me suis fabriquer une insoleuse maison.
  
  Sous peux, je mettrais en ligne une version de platine SI5351 adjoint à un ocxo 50mhz et compatible avec cette balise.
  
  Cordialement,
  
  Répondre

Laisser un commentaire Annuler la réponse

Ce site utilise Akismet pour réduire les indésirables. En savoir plus sur comment les données de vos commentaires sont utilisées.