Big number repaired

nanovna.h

@@ -563,9 +563,11 @@ extern uint16_t graph_bottom;
 #ifdef TINYSA4
 #define BIG_WATERFALL   180
 #define SMALL_WATERFALL 240
+#define BIG_NUMBER_SPACE BIG_WATERFALL
 #else
 #define BIG_WATERFALL   90
 #define SMALL_WATERFALL 180
+#define BIG_NUMBER_SPACE SMALL_WATERFALL
 #endif
 #define NO_WATERFALL    CHART_BOTTOM
 #define CHART_BOTTOM   (LCD_HEIGHT-10)

plot.c

@@ -2185,7 +2185,7 @@ static void update_level_meter(void){
 void
 set_level_meter(void)
 {
-  if (setting.level_meter)       graph_bottom = BIG_WATERFALL;
+  if (setting.level_meter)       graph_bottom = BIG_NUMBER_SPACE;
 //  else if (setting.level_meter == W_BIG)    graph_bottom = BIG_WATERFALL;
   else /*if (setting.level_meter == W_OFF)*/graph_bottom = NO_WATERFALL;
   _grid_y = graph_bottom / NGRIDY;