diff --git a/demod/dfm09dm_dft.c b/demod/dfm09dm_dft.c
index 2cdf145..2577a9f 100644
--- a/demod/dfm09dm_dft.c
+++ b/demod/dfm09dm_dft.c
@@ -32,7 +32,7 @@ typedef struct {
     int frnr;
     int sonde_typ;
     ui32_t SN6;
-    ui32_t SN9;
+    ui32_t SN;
     int week; int gpssec;
     int jahr; int monat; int tag;
     int std; int min; float sek;
@@ -56,6 +56,8 @@ int option_verbose = 0,  // ausfuehrliche Anzeige
     wavloaded = 0;
 int wav_channel = 0;     // audio channel: left
 
+int ptu_out = 0;
+
 int start = 0;
 
 
@@ -197,7 +199,7 @@ int dat_out(ui8_t *dat_bits) {
 
     if (fr_id == 1) {
         // 00..31: ? GPS-Sats in Sicht?
-        msek = bits2val(dat_bits+32, 16);
+        msek = bits2val(dat_bits+32, 16);  // UTC (= GPS - 18sec  ab 1.1.2017)
         gpx.sek = msek/1000.0;
     }
 
@@ -328,7 +330,7 @@ float get_Temp2(float *meas) { // meas[0..4]
     R = (f-f1)/g;                    // meas[0,3,4] > 0 ?
     if (R > 0)  T = 1/(1/T0 + 1/B0 * log(R/R0));
 
-    if (option_ptu && option_verbose == 2) {
+    if (option_ptu && ptu_out && option_verbose == 2) {
         printf("  (Rso: %.1f , Rb: %.1f)", Rs_o/1e3, Rb/1e3);
     }
 
@@ -375,22 +377,30 @@ float get_Temp4(float *meas) { // meas[0..4]
 }
 
 
-#define SNbit 0x0100
+#define RSNbit 0x0100  // radiosonde DFM-06,DFM-09
+#define PSNbit 0x0200  // pilotsonde PS-15
 int conf_out(ui8_t *conf_bits) {
     int conf_id;
     int ret = 0;
     int val, hl;
+    ui32_t SN6, SN;
     static int chAbit, chA[2];
-    ui32_t SN6, SN9;
+    static int chCbit, chC[2];
+    static int chDbit, chD[2];
+    static int ch7bit, ch7[2];
+    static ui32_t SN_A, SN_C, SN_D, SN_7;
 
     conf_id = bits2val(conf_bits, 4);
 
-    //if (conf_id > 6) gpx.SN6 = 0;  //// gpx.sonde_typ & 0xF = 9; // SNbit?
-
-    if ((gpx.sonde_typ & 0xFF) < 9  &&  conf_id == 6) {
-        SN6 = bits2val(conf_bits+4, 4*6);  // DFM-06: Kanal 6
-        if ( SN6 == gpx.SN6 ) {            // nur Nibble-Werte 0..9
-            gpx.sonde_typ = SNbit | 6;
+    // gibt es Kanaele > 6 (2-teilige ID)?
+    // if (conf_id > 6) gpx.SN6 = 0;  // -> DFM-09,PS-15  // SNbit?
+    //
+    // SN/ID immer im letzten Kanal?
+    if ((gpx.sonde_typ & 0xF) < 7  &&  conf_id == 6) {
+        SN6 = bits2val(conf_bits+4, 4*6);    // DFM-06: Kanal 6
+        if ( SN6 == gpx.SN6  &&  SN6 != 0) { // nur Nibble-Werte 0..9
+            gpx.sonde_typ = RSNbit | 6;
+            ptu_out = 6;
             ret = 6;
         }
         else {
@@ -400,22 +410,84 @@ int conf_out(ui8_t *conf_bits) {
     }
     if (conf_id == 0xA) {  // 0xACxxxxy
         val = bits2val(conf_bits+8, 4*5);
-        hl =  (val & 1) == 0;
+        hl =  (val & 1);  // val&0xF 0,1?
         chA[hl] = (val >> 4) & 0xFFFF;
         chAbit |= 1 << hl;
         if (chAbit == 3) {  // DFM-09: Kanal A
-            SN9 = (chA[1] << 16) | chA[0];
-            if ( SN9 == gpx.SN9 ) {
-                gpx.sonde_typ = SNbit | 9;
+            SN = (chA[0] << 16) | chA[1];
+            if ( SN == SN_A ) {
+                gpx.sonde_typ = RSNbit | 0xA;
+                gpx.SN = SN;
+                ptu_out = 9;
                 ret = 9;
             }
             else {
                 gpx.sonde_typ = 0;
             }
-            gpx.SN9 = SN9;
+            SN_A = SN;
             chAbit = 0;
         }
     }
+    if (conf_id == 0xC) {  // 0xCCxxxxy
+        val = bits2val(conf_bits+8, 4*5);
+        hl =  (val & 1);
+        chC[hl] = (val >> 4) & 0xFFFF;
+        chCbit |= 1 << hl;
+        if (chCbit == 3) {  // DFM-17? Kanal C
+            SN = (chC[0] << 16) | chC[1];
+            if ( SN == SN_C ) {
+                gpx.sonde_typ = RSNbit | 0xC;
+                gpx.SN = SN;
+                ptu_out = 9;
+                ret = 17;
+            }
+            else {
+                gpx.sonde_typ = 0;
+            }
+            SN_C = SN;
+            chCbit = 0;
+        }
+    }
+    if (conf_id == 0xD) {  // 0xDCxxxxy
+        val = bits2val(conf_bits+8, 4*5);
+        hl =  (val & 1);
+        chD[hl] = (val >> 4) & 0xFFFF;
+        chDbit |= 1 << hl;
+        if (chDbit == 3) {  // DFM-17? Kanal D
+            SN = (chD[0] << 16) | chD[1];
+            if ( SN == SN_D ) {
+                gpx.sonde_typ = RSNbit | 0xD;
+                gpx.SN = SN;
+                ptu_out = 9;
+                ret = 18;
+            }
+            else {
+                gpx.sonde_typ = 0;
+            }
+            SN_D = SN;
+            chDbit = 0;
+        }
+    }
+    if (conf_id == 0x7) {  // 0x70xxxxy
+        val = bits2val(conf_bits+8, 4*5);
+        hl =  (val & 1);
+        ch7[hl] = (val >> 4) & 0xFFFF;
+        ch7bit |= 1 << hl;
+        if (ch7bit == 3) {  // PS-15: Kanal 7
+            SN = (ch7[0] << 16) | ch7[1];
+            if ( SN == SN_7 ) {
+                gpx.sonde_typ = PSNbit | 0x7;
+                gpx.SN = SN;
+                ptu_out = 0;
+                ret = 15;
+            }
+            else {
+                gpx.sonde_typ = 0;
+            }
+            SN_7 = SN;
+            ch7bit = 0;
+        }
+    }
 
     if (conf_id >= 0 && conf_id <= 4) {
         val = bits2val(conf_bits+4, 4*6);
@@ -429,7 +501,7 @@ int conf_out(ui8_t *conf_bits) {
     }
 
     // STM32-status: Bat, MCU-Temp
-    if ((gpx.sonde_typ & 0xFF) == 9) { // DFM-09 (STM32)
+    if ((gpx.sonde_typ & 0xF) == 0xA) { // DFM-09 (STM32)
         if (conf_id == 0x5) { // voltage
             val = bits2val(conf_bits+8, 4*4);
             gpx.status[0] = val/1000.0;
@@ -468,7 +540,7 @@ void print_gpx() {
           printf(" vH: %5.2f ", gpx.horiV);
           printf(" D: %5.1f ", gpx.dir);
           printf(" vV: %5.2f ", gpx.vertV);
-          if (option_ptu) {
+          if (option_ptu  &&  ptu_out) {
               float t = get_Temp(gpx.meas24);
               if (t > -270.0) printf("  T=%.1fC ", t);
               if (option_verbose == 2) {
@@ -481,19 +553,32 @@ void print_gpx() {
                   printf(" f4: %.2f ", gpx.meas24[4]);
               }
           }
-          if (option_verbose == 2  &&  (gpx.sonde_typ & 0xFF) == 9) {
+          if (option_verbose == 2  &&  (gpx.sonde_typ & 0xF) == 0xA) {
               printf("  U: %.2fV ", gpx.status[0]);
               printf("  Ti: %.1fK ", gpx.status[1]);
           }
-          if (option_verbose  &&  (gpx.sonde_typ & SNbit))
+          if ( option_verbose )
           {
-              if ((gpx.sonde_typ & 0xFF) == 6) {
-                  printf(" (ID%1d:%06X) ", gpx.sonde_typ & 0xF, gpx.SN6);
+              if (gpx.sonde_typ & RSNbit)
+              {
+                  if ((gpx.sonde_typ & 0xF) == 6) { // DFM-06
+                      printf(" (ID6:%06X) ", gpx.SN6);
+                  }
+                  if ((gpx.sonde_typ & 0xF) == 0xA) { // DFM-09
+                      printf(" (ID9:%06u) ", gpx.SN);
+                  }
+                  if ((gpx.sonde_typ & 0xF) == 0xC || // DFM-17?
+                      (gpx.sonde_typ & 0xF) == 0xD ) {
+                      printf(" (ID-%1X:%06u) ", gpx.sonde_typ & 0xF, gpx.SN);
+                  }
+                  gpx.sonde_typ ^= RSNbit;
               }
-              if ((gpx.sonde_typ & 0xFF) == 9) {
-                  printf(" (ID%1d:%06u) ", gpx.sonde_typ & 0xF, gpx.SN9);
+              if (gpx.sonde_typ & PSNbit) {
+                  if ((gpx.sonde_typ & 0xF) == 0x7) { // PS-15?
+                      printf(" (ID15:%06u) ", gpx.SN);
+                  }
+                  gpx.sonde_typ ^= PSNbit;
               }
-              gpx.sonde_typ ^= SNbit;
           }
       }
       printf("\n");
@@ -642,7 +727,7 @@ int main(int argc, char **argv) {
             option_inv = 0x1;
         }
         else if ( (strcmp(*argv, "--ecc") == 0) ) { option_ecc = 1; }
-        else if ( (strcmp(*argv, "--ptu") == 0) ) { option_ptu = 1; }
+        else if ( (strcmp(*argv, "--ptu") == 0) ) { option_ptu = 1;  ptu_out = 1; }
         else if ( (strcmp(*argv, "--ch2") == 0) ) { wav_channel = 1; }  // right channel (default: 0=left)
         else if ( (strcmp(*argv, "--ths") == 0) ) {
             ++argv;
diff --git a/dfm/dfm06ptu.c b/dfm/dfm06ptu.c
index a743c99..3722450 100644
--- a/dfm/dfm06ptu.c
+++ b/dfm/dfm06ptu.c
@@ -37,9 +37,7 @@ typedef struct {
     int frnr;
     int sonde_typ;
     ui32_t SN6;
-    ui32_t SN9;
-    ui32_t SN15;
-    ui32_t SN17;
+    ui32_t SN;
     int week; int gpssec;
     int jahr; int monat; int tag;
     int std; int min; float sek;
@@ -715,18 +713,20 @@ int conf_out(ui8_t *conf_bits) {
     int conf_id;
     int ret = 0;
     int val, hl;
+    ui32_t SN6, SN;
     static int chAbit, chA[2];
-    ui32_t SN6, SN9;
-    static int ch7bit, ch7[2];
-    ui32_t SN15;
     static int chCbit, chC[2];
-    ui32_t SN17;
+    static int chDbit, chD[2];
+    static int ch7bit, ch7[2];
+    static ui32_t SN_A, SN_C, SN_D, SN_7;
 
     conf_id = bits2val(conf_bits, 4);
 
-    //if (conf_id > 6) gpx.SN6 = 0;  // -> DFM-09,PS-15  // SNbit?
-
-    if ((gpx.sonde_typ & 0xFF) < 9  &&  conf_id == 6) {
+    // gibt es Kanaele > 6 (2-teilige ID)?
+    // if (conf_id > 6) gpx.SN6 = 0;  // -> DFM-09,PS-15  // SNbit?
+    //
+    // SN/ID immer im letzten Kanal?
+    if ((gpx.sonde_typ & 0xF) < 7  &&  conf_id == 6) {
         SN6 = bits2val(conf_bits+4, 4*6);    // DFM-06: Kanal 6
         if ( SN6 == gpx.SN6  &&  SN6 != 0) { // nur Nibble-Werte 0..9
             gpx.sonde_typ = RSNbit | 6;
@@ -740,61 +740,84 @@ int conf_out(ui8_t *conf_bits) {
     }
     if (conf_id == 0xA) {  // 0xACxxxxy
         val = bits2val(conf_bits+8, 4*5);
-        hl =  (val & 1) == 0;
+        hl =  (val & 1);  // val&0xF 0,1?
         chA[hl] = (val >> 4) & 0xFFFF;
         chAbit |= 1 << hl;
         if (chAbit == 3) {  // DFM-09: Kanal A
-            SN9 = (chA[1] << 16) | chA[0];
-            if ( SN9 == gpx.SN9 ) {
-                gpx.sonde_typ = RSNbit | 9;
+            SN = (chA[0] << 16) | chA[1];
+            if ( SN == SN_A ) {
+                gpx.sonde_typ = RSNbit | 0xA;
+                gpx.SN = SN;
                 ptu_out = 9;
                 ret = 9;
             }
             else {
                 gpx.sonde_typ = 0;
             }
-            gpx.SN9 = SN9;
+            SN_A = SN;
             chAbit = 0;
         }
     }
-    if (conf_id == 0x7) {  // 0x70xxxxy
-        val = bits2val(conf_bits+8, 4*5);
-        hl =  (val & 1) == 0;
-        ch7[hl] = (val >> 4) & 0xFFFF;
-        ch7bit |= 1 << hl;
-        if (ch7bit == 3) {  // PS-15: Kanal 7
-            SN15 = (ch7[1] << 16) | ch7[0];
-            if ( SN15 == gpx.SN15 ) {
-                gpx.sonde_typ = PSNbit | 15;
-                ptu_out = 0;
-                ret = 15;
-            }
-            else {
-                gpx.sonde_typ = 0;
-            }
-            gpx.SN15 = SN15;
-            ch7bit = 0;
-        }
-    }
     if (conf_id == 0xC) {  // 0xCCxxxxy
         val = bits2val(conf_bits+8, 4*5);
-        hl =  (val & 1) == 0;
+        hl =  (val & 1);
         chC[hl] = (val >> 4) & 0xFFFF;
         chCbit |= 1 << hl;
-        if (chCbit == 3) {  // DFM-17: Kanal C
-            SN17 = (chC[1] << 16) | chC[0];
-            if ( SN17 == gpx.SN17 ) {
-                gpx.sonde_typ = RSNbit | 17;
+        if (chCbit == 3) {  // DFM-17? Kanal C
+            SN = (chC[0] << 16) | chC[1];
+            if ( SN == SN_C ) {
+                gpx.sonde_typ = RSNbit | 0xC;
+                gpx.SN = SN;
                 ptu_out = 9;
                 ret = 17;
             }
             else {
                 gpx.sonde_typ = 0;
             }
-            gpx.SN17 = SN17;
+            SN_C = SN;
             chCbit = 0;
         }
     }
+    if (conf_id == 0xD) {  // 0xDCxxxxy
+        val = bits2val(conf_bits+8, 4*5);
+        hl =  (val & 1);
+        chD[hl] = (val >> 4) & 0xFFFF;
+        chDbit |= 1 << hl;
+        if (chDbit == 3) {  // DFM-17? Kanal D
+            SN = (chD[0] << 16) | chD[1];
+            if ( SN == SN_D ) {
+                gpx.sonde_typ = RSNbit | 0xD;
+                gpx.SN = SN;
+                ptu_out = 9;
+                ret = 18;
+            }
+            else {
+                gpx.sonde_typ = 0;
+            }
+            SN_D = SN;
+            chDbit = 0;
+        }
+    }
+    if (conf_id == 0x7) {  // 0x70xxxxy
+        val = bits2val(conf_bits+8, 4*5);
+        hl =  (val & 1);
+        ch7[hl] = (val >> 4) & 0xFFFF;
+        ch7bit |= 1 << hl;
+        if (ch7bit == 3) {  // PS-15: Kanal 7
+            SN = (ch7[0] << 16) | ch7[1];
+            if ( SN == SN_7 ) {
+                gpx.sonde_typ = PSNbit | 0x7;
+                gpx.SN = SN;
+                ptu_out = 0;
+                ret = 15;
+            }
+            else {
+                gpx.sonde_typ = 0;
+            }
+            SN_7 = SN;
+            ch7bit = 0;
+        }
+    }
 
     if (conf_id >= 0 && conf_id <= 4) {
         val = bits2val(conf_bits+4, 4*6);
@@ -808,7 +831,7 @@ int conf_out(ui8_t *conf_bits) {
     }
 
     // STM32-status: Bat, MCU-Temp
-    if ((gpx.sonde_typ & 0xFF) == 9) { // DFM-09 (STM32)
+    if ((gpx.sonde_typ & 0xF) == 0xA) { // DFM-09 (STM32)
         if (conf_id == 0x5) { // voltage
             val = bits2val(conf_bits+8, 4*4);
             gpx.status[0] = val/1000.0;
@@ -860,7 +883,7 @@ void print_gpx() {
                   printf(" f4: %.2f ", gpx.meas24[4]);
               }
           }
-          if (option_verbose == 2  &&  (gpx.sonde_typ & 0xFF) == 9) {
+          if (option_verbose == 2  &&  (gpx.sonde_typ & 0xF) == 0xA) {
               printf("  U: %.2fV ", gpx.status[0]);
               printf("  Ti: %.1fK ", gpx.status[1]);
           }
@@ -868,20 +891,21 @@ void print_gpx() {
           {
               if (gpx.sonde_typ & RSNbit)
               {
-                  if ((gpx.sonde_typ & 0xFF) == 6) {
-                      printf(" (ID%1d:%06X) ", gpx.sonde_typ & 0xF, gpx.SN6);
+                  if ((gpx.sonde_typ & 0xF) == 6) { // DFM-06
+                      printf(" (ID6:%06X) ", gpx.SN6);
                   }
-                  if ((gpx.sonde_typ & 0xFF) == 9) {
-                      printf(" (ID%1d:%06u) ", gpx.sonde_typ & 0xF, gpx.SN9);
+                  if ((gpx.sonde_typ & 0xF) == 0xA) { // DFM-09
+                      printf(" (ID9:%06u) ", gpx.SN);
                   }
-                  if ((gpx.sonde_typ & 0xFF) == 17) {
-                      printf(" (ID%2d:%06u) ", gpx.sonde_typ & 0xFF, gpx.SN17);
+                  if ((gpx.sonde_typ & 0xF) == 0xC || // DFM-17?
+                      (gpx.sonde_typ & 0xF) == 0xD ) {
+                      printf(" (ID-%1X:%06u) ", gpx.sonde_typ & 0xF, gpx.SN);
                   }
                   gpx.sonde_typ ^= RSNbit;
               }
               if (gpx.sonde_typ & PSNbit) {
-                  if ((gpx.sonde_typ & 0xFF) == 15) {
-                      printf(" (ID15:%06u) ", gpx.SN15);
+                  if ((gpx.sonde_typ & 0xF) == 0x7) { // PS-15?
+                      printf(" (ID15:%06u) ", gpx.SN);
                   }
                   gpx.sonde_typ ^= PSNbit;
               }