Reset the sample count at the beginning of each transmission.

DStarTX.cpp

@@ -212,6 +212,8 @@ void CDStarTX::process()
 
   if (type == DSTAR_HEADER && m_poLen == 0U) {
     if (!m_tx) {
+      m_count = 0U;
+
       for (uint16_t i = 0U; i < m_txDelay; i++)
         m_poBuffer[m_poLen++] = BIT_SYNC;
     } else {
@@ -237,6 +239,9 @@ void CDStarTX::process()
   }
  
   if (type == DSTAR_DATA && m_poLen == 0U) {
+    if (!m_tx)
+      m_count = 0U;
+
     // Pop the type byte off
     m_buffer.get();