diff --git a/app/app.c b/app/app.c
index 733d8bf..1b0e13c 100644
--- a/app/app.c
+++ b/app/app.c
@@ -1182,8 +1182,7 @@ void APP_TimeSlice10ms(void)
 		if (gRxVfo->Modulation == MODULATION_AM && gSetting_AM_fix)
 			AM_fix_10ms(gEeprom.RX_VFO);
 #endif
-    char a[2]="SB";
-    UART_Send((uint8_t *)&a,2);
+
     if (UART_IsCommandAvailable())
     {
         char a[2]="OK";
diff --git a/app/uart.c b/app/uart.c
index c6cbf9a..7c904fa 100644
--- a/app/uart.c
+++ b/app/uart.c
@@ -514,11 +514,9 @@ bool UART_IsCommandAvailable(void)
     return (CRC_Calculate(UART_Command.Buffer, Size) != CRC) ? false : true;
 }
 
- void UART_HandleCommand(void)
+void UART_HandleCommand(void)
 {
-//    volatile uint16_t CMD_ID=
-
-     switch (UART_Command.Header.ID)
+    switch (UART_Command.Header.ID)
     {
         case 0x0514:
             CMD_0514(UART_Command.Buffer);