Set auto reflevel of onsetting scale

sa_core.c

@@ -1952,9 +1952,9 @@ void draw_cal_status(void)
   ili9341_set_foreground(color);
   y += YSTEP + YSTEP/2 ;
   if (MODE_LOW(setting.mode))
-      ili9341_drawstring_7x13("M:L", x, y);
+      ili9341_drawstring_7x13("LOW", x, y);
   else
-    ili9341_drawstring_7x13("M:H", x, y);
+    ili9341_drawstring_7x13("HIGH", x, y);
 
 
   y = HEIGHT-7 + OFFSETY;

ui_sa.c

@@ -1790,6 +1790,8 @@ set_numeric_value(void)
     set_sweep_frequency(ST_CW, uistat.value);
     break;
   case KM_SCALE:
+    if (UNIT_IS_LINEAR(setting.unit))
+      set_auto_reflevel(false);
     set_scale(uistat.value);
     break;
   case KM_REFPOS: