diff --git a/ubitx_20/ubitx.h b/ubitx_20/ubitx.h
index f3c399f..20872b8 100644
--- a/ubitx_20/ubitx.h
+++ b/ubitx_20/ubitx.h
@@ -21,16 +21,16 @@
 //==============================================================================
 //Depending on the type of LCD mounted on the uBITX, uncomment one of the options below.
 //You must select only one.
-//#define UBITX_DISPLAY_LCD1602P      //LCD mounted on unmodified uBITX
+#define UBITX_DISPLAY_LCD1602P      //LCD mounted on unmodified uBITX
 //#define UBITX_DISPLAY_LCD1602I      //I2C type 16 x 02 LCD
-#define UBITX_DISPLAY_LCD1602I_DUAL
+//#define UBITX_DISPLAY_LCD1602I_DUAL
 //#define UBITX_DISPLAY_LCD2004P      //24 x 04 LCD (Parallel)
 //#define UBITX_DISPLAY_LCD2004I        //I2C type 24 x 04 LCD
 
 #define I2C_LCD_MASTER_ADDRESS_DEFAULT  0x3F     //0x27  //DEFAULT, if Set I2C Address by uBITX Manager, read from EEProm
 #define I2C_LCD_SECOND_ADDRESS_DEFAULT  0x27     //0x27  //only using Dual LCD Mode
 
-//#define EXTEND_KEY_GROUP1           //MODE, BAND(-), BAND(+), STEP
+#define EXTEND_KEY_GROUP1           //MODE, BAND(-), BAND(+), STEP
 //#define EXTEND_KEY_GROUP2           //Numeric (0~9), Point(.), Enter  //Not supported in Version 1.0x
 
 #define ENABLE_FACTORYALIGN
@@ -41,7 +41,7 @@ extern byte I2C_LCD_SECOND_ADDRESS;         //only using Dual LCD Mode
 
 #define SMeterLatency   3  //1 is 0.25 sec
 
-#ifdef defined(UBITX_DISPLAY_LCD1602I)
+#ifdef UBITX_DISPLAY_LCD1602I
   #define USE_I2C_LCD
 #elif defined(UBITX_DISPLAY_LCD1602I_DUAL)
   #define USE_I2C_LCD
@@ -122,7 +122,7 @@ extern byte I2C_LCD_SECOND_ADDRESS;         //only using Dual LCD Mode
 extern unsigned long frequency;
 extern byte WsprMSGCount;
 extern byte sMeterLevels[9];
-extern int KeyValues[16][2];    //ADC value Ranges for Extend Key
+extern byte KeyValues[16][2];    //ADC value Ranges for Extend Key
 
 extern void printLine1(const char *c);
 extern void printLine2(const char *c);
diff --git a/ubitx_20/ubitx_20.ino b/ubitx_20/ubitx_20.ino
index 5902aef..2b716e4 100644
--- a/ubitx_20/ubitx_20.ino
+++ b/ubitx_20/ubitx_20.ino
@@ -186,7 +186,7 @@ byte I2C_LCD_MASTER_ADDRESS;        //0x27  //if Set I2C Address by uBITX Manage
 byte I2C_LCD_SECOND_ADDRESS;         //only using Dual LCD Mode
 
 
-int KeyValues[16][2];
+byte KeyValues[16][2];
 /*= {
   {1023, 1025},   //1
   {707, 711},   //5
diff --git a/ubitx_20/ubitx_lcd_1602Dual.ino b/ubitx_20/ubitx_lcd_1602Dual.ino
index a8105c7..8c698ac 100644
--- a/ubitx_20/ubitx_lcd_1602Dual.ino
+++ b/ubitx_20/ubitx_lcd_1602Dual.ino
@@ -721,7 +721,8 @@ void idle_process()
       newSMeter = analogRead(ANALOG_SMETER);
   
       //Faster attack, Slower release
-      currentSMeter = (newSMeter > currentSMeter ? ((currentSMeter * 3 + newSMeter * 7) + 5) / 10 : ((currentSMeter * 7 + newSMeter * 3) + 5) / 10);
+      //currentSMeter = (newSMeter > currentSMeter ? ((currentSMeter * 3 + newSMeter * 7) + 5) / 10 : ((currentSMeter * 7 + newSMeter * 3) + 5) / 10);
+      currentSMeter = (currentSMeter * 3 + newSMeter * 7) / 10; //remarked becaused of have already Latency time
   
       scaledSMeter = 0;
       for (byte s = 8; s >= 1; s--) {
diff --git a/ubitx_20/ubitx_ui.ino b/ubitx_20/ubitx_ui.ino
index faf8f53..57fa1a9 100644
--- a/ubitx_20/ubitx_ui.ino
+++ b/ubitx_20/ubitx_ui.ino
@@ -184,6 +184,8 @@ int getBtnStatus(void){
     return FKEY_PRESS;
   else
   {
+    readButtonValue = readButtonValue / 4;
+    
     for (int i = 0; i < 16; i++)
       if (KeyValues[i][0] <= readButtonValue && KeyValues[i][1] >= readButtonValue)
         return i;