Add correction off warning

sa_core.c

@@ -2043,7 +2043,7 @@ pureRSSI_t get_frequency_correction(freq_t f)      // Frequency dependent RSSI c
   int c=CORRECTION_LOW;
   if (setting.mode == M_GENHIGH) {
     c = CORRECTION_HIGH;
-    return(0.0);
+    return float_TO_PURE_RSSI(0.0);
   }
 #ifdef TINYSA4
   if (setting.mode == M_LOW) {

ui_sa.c

@@ -3961,6 +3961,12 @@ redraw_cal_status:
     y = add_quick_menu(y += YSTEP, (menuitem_t *)menu_config);
   }
 
+  if (setting.disable_correction){
+    ili9341_set_foreground(LCD_BRIGHT_COLOR_GREEN);
+    lcd_printf(x, y, "Corr:\nOFF");
+    y += 2*YSTEP;
+  }
+
 #endif
   // Cal output
   if (setting.refer >= 0) {