added debug_mode test in CW mode

cubesatsim/cubesatsim.ino

@@ -379,6 +379,7 @@ void send_cw() {
   strcat(telem, callsign);
   strcat(telem, space);
   strcat(telem, tlm_str);  // don't send payload since it isn't encoded and has "."
+  if (debug_mode)	
     print_string(telem);
 //  Serial.println(strlen(telem));