diff --git a/main.c b/main.c
index 0065daa..47e1d3b 100644
--- a/main.c
+++ b/main.c
@@ -991,9 +991,9 @@ config_t config = {
   .high_correction_frequency = { 240000000, 280000000, 300000000, 400000000, 500000000, 600000000, 700000000, 800000000, 900000000, 960000000 },
   .high_correction_value = { 0, 0, 0, 0, 0.0, 0, 0, 0, 0, 0 },
   .setting_frequency_10mhz = 10000000,
-  .cor_am = -14,
-  .cor_wfm = -17,
-  .cor_nfm = -17,
+  .cor_am = -8,
+  .cor_wfm = -15,
+  .cor_nfm = -15,
   .ext_zero_level = 128,
 #endif
 #ifdef TINYSA4
diff --git a/nanovna.h b/nanovna.h
index e082c4d..02903e0 100644
--- a/nanovna.h
+++ b/nanovna.h
@@ -1077,7 +1077,7 @@ typedef struct properties {
 
 //sizeof(properties_t) == 0x1200
 
-#define CONFIG_MAGIC 0x434f4e49 /* 'CONF' */
+#define CONFIG_MAGIC 0x434f4e4A /* 'CONF' */
 
 extern int16_t lastsaveid;
 //extern properties_t *active_props;
diff --git a/sa_core.c b/sa_core.c
index 52d7176..e8e723d 100644
--- a/sa_core.c
+++ b/sa_core.c
@@ -35,7 +35,7 @@
 #endif
 #endif
 // uint8_t dirty = true;
-int scandirty = true;
+uint8_t scandirty = true;
 
 setting_t setting;
 freq_t frequencies[POINTS_COUNT];
@@ -565,7 +565,7 @@ void set_modulation(int m)
 
 void set_modulation_frequency(int f)
 {
-  if (50 <= f && f <= 6000) {
+  if (50 <= f && f <= 7000) {
     setting.modulation_frequency = f;
     dirty = true;
   }
@@ -1074,7 +1074,7 @@ void set_unit(int u)
     if (S_IS_AUTO(setting.lna))
       setting.lna = S_AUTO_OFF;
   } else {
-    r = 10 * round((r*1.2)/10.0);
+    r = 10 * roundf((r*1.2)/10.0);
     set_reflevel(r);
     set_scale(10);
     if (S_IS_AUTO(setting.agc))
@@ -1303,7 +1303,8 @@ static void calculate_step_delay(void)
       SI4432_step_delay = 0;
     } else {
       // Search index in table depend from RBW
-      volatile uint16_t i=0;
+      uint16_t i=0;
+
       for (i=0;i<ARRAY_COUNT(step_delay_table)-1;i++)
         if (actual_rbw_x10 >= step_delay_table[i].rbw_x10)
           break;
diff --git a/si4432.c b/si4432.c
index b645193..fe817b6 100644
--- a/si4432.c
+++ b/si4432.c
@@ -1129,7 +1129,7 @@ void ADF4351_prep_frequency(int channel, unsigned long freq, int drive)  // freq
     MOD = (PFDRFout[channel] / OutputChannelSpacing) + 0.01;
 //    MOD = 3125;
     FRACF = (((RFout * OutputDivider) / PFDRFout[channel]) - INTA) * MOD;
-    FRAC = round(FRACF);
+    FRAC = roundf(FRACF);
 
   while (FRAC > 4095 || MOD > 4095) {
     FRAC = FRAC >> 1;
diff --git a/ui.c b/ui.c
index 242601f..31b06d5 100644
--- a/ui.c
+++ b/ui.c
@@ -1592,19 +1592,6 @@ menu_is_multiline(const char *label)
   return n;
 }
 
-static void
-draw_numeric_area_frame(void)
-{
-  ili9341_set_foreground(LCD_INPUT_TEXT_COLOR);
-  ili9341_set_background(LCD_INPUT_BG_COLOR);
-
-  ili9341_fill(0, LCD_HEIGHT-NUM_INPUT_HEIGHT, LCD_WIDTH, NUM_INPUT_HEIGHT);
-  char *name = keypads_mode_tbl[keypad_mode].name;
-  int lines = menu_is_multiline(name);
-  ili9341_drawstring_7x13(name, 10, LCD_HEIGHT-NUM_INPUT_HEIGHT + (NUM_INPUT_HEIGHT-lines*bFONT_STR_HEIGHT)/2);
-  //ili9341_drawfont(KP_KEYPAD, 300, 216);
-}
-
 static void
 draw_numeric_input(const char *buf)
 {
@@ -1634,10 +1621,25 @@ draw_numeric_input(const char *buf)
   ili9341_fill(x, LCD_HEIGHT-NUM_INPUT_HEIGHT+4, LCD_WIDTH-x-1, NUM_FONT_GET_WIDTH+2+8);
   if (buf[0] == 0 && kp_help_text != NULL) {
     int  lines = menu_is_multiline(kp_help_text);
+    ili9341_set_foreground(LCD_INPUT_TEXT_COLOR);
     ili9341_drawstring_7x13(kp_help_text, 64+NUM_FONT_GET_WIDTH+2, LCD_HEIGHT-(lines*bFONT_GET_HEIGHT+NUM_INPUT_HEIGHT)/2);
   }
 }
 
+static void
+draw_numeric_area_frame(void)
+{
+  ili9341_set_foreground(LCD_INPUT_TEXT_COLOR);
+  ili9341_set_background(LCD_INPUT_BG_COLOR);
+
+  ili9341_fill(0, LCD_HEIGHT-NUM_INPUT_HEIGHT, LCD_WIDTH, NUM_INPUT_HEIGHT);
+  char *name = keypads_mode_tbl[keypad_mode].name;
+  int lines = menu_is_multiline(name);
+  ili9341_drawstring_7x13(name, 10, LCD_HEIGHT-NUM_INPUT_HEIGHT + (NUM_INPUT_HEIGHT-lines*bFONT_STR_HEIGHT)/2);
+  //ili9341_drawfont(KP_KEYPAD, 300, 216);
+  draw_numeric_input("");
+}
+
 #ifdef __VNA__
 static void
 menu_item_modify_attribute(const menuitem_t *menu, int item,