   //
   //
 
-  a_string = F("$FHMTA,");
+  a_string = F("$WIMTA,");
   append_float_to_string(a_string, temperature);
   a_string += F(",F*");
 

  //
  //

  a_string = F("$FHMDA,");
  append_float_to_string(a_string, pressure);
  a_string += F(",I,");
  append_float_to_string(a_string, pressure * 0.03386388158);

  // 	Then the old school MMB for Air Pressure
  //

  a_string = F("$WIMMB,");
  append_float_to_string(a_string, pressure);
  a_string += F(",I,");
  append_float_to_string(a_string, pressure * 0.03386388158);
