 
 VFOEvent event_pop(void)
 {
-  // Must protect from RE code fiddling with queue
+  // Must protect from RE code while fiddling with queue
   noInterrupts();
 
   // if queue empty, return None event

    
    if (CommandIndex < MAX_COMMAND_LEN)
    { 
      CommandBuffer[CommandIndex++] = ch;
    }
    
    if (ch == COMMAND_END_CHAR)   // if end of command, execute it
    {
      char answer[1024];
      
      CommandBuffer[CommandIndex] = '\0';
      Serial.printf(F("%s\n"), do_external_cmd(answer, CommandBuffer, CommandIndex-1));

}

//----------------------------------------
// Frequency commands:
//     FSnnnnnnnn;  set frequency to 'nnnnnnnn'
//     FG;          get frequency
//----------------------------------------
