diff --git a/app/main.c b/app/main.c
index cbb089c..2aa73a1 100644
--- a/app/main.c
+++ b/app/main.c
@@ -334,6 +334,7 @@ static void MAIN_Key_DIGITS(KEY_Code_t Key, bool bKeyPressed, bool bKeyHeld)
 //		#endif
 		if (IS_FREQ_CHANNEL(gTxVfo->CHANNEL_SAVE))
 		{	// user is entering frequency
+	
 			uint32_t Frequency;
 
 			if (gInputBoxIndex < 6)
@@ -349,16 +350,22 @@ static void MAIN_Key_DIGITS(KEY_Code_t Key, bool bKeyPressed, bool bKeyHeld)
 
 			NUMBER_Get(gInputBox, &Frequency);
 
-//			if (Frequency < bx_start1_Hz || Frequency >= bx_stop2_Hz)
-//			{	// the BK4819 chip does not do this frequency range
-//			}
-//			else
-//			if (Frequency >= bx_stop1_Hz && Frequency < bx_start2_Hz)
-//			{	// the BK4819 chip does not do this frequency range
-//			}
-//			else
-//			if (gSetting_350EN || Frequency < 35000000 || Frequency >= 40000000)
-			if (RX_FREQUENCY_Check(Frequency) == 0)
+			if (Frequency < LowerLimitFrequencyBandTable[0])
+			{
+				Frequency = LowerLimitFrequencyBandTable[0];
+			}
+			else
+			if (Frequency >= bx_stop1_Hz && Frequency < bx_start2_Hz)
+			{	// move the frequency to the closest limit
+				const uint32_t center = (bx_stop1_Hz + bx_start2_Hz) / 2;
+				Frequency = (Frequency < center) ? bx_stop1_Hz - 10 : bx_start2_Hz;
+			}
+			else
+			if (Frequency > UpperLimitFrequencyBandTable[6])
+			{
+				Frequency = UpperLimitFrequencyBandTable[6];
+			}
+			
 			{
 				unsigned int i;
 				for (i = 0; i < 7; i++)
@@ -380,8 +387,9 @@ static void MAIN_Key_DIGITS(KEY_Code_t Key, bool bKeyPressed, bool bKeyHeld)
 							RADIO_ConfigureChannel(Vfo, 2);
 						}
 
-						Frequency += 75;
-
+//						Frequency += 75;                        // is this for rounding
+						Frequency += gTxVfo->StepFrequency / 2; // this is though
+						
 						gTxVfo->freq_config_RX.Frequency = FREQUENCY_FloorToStep(Frequency, gTxVfo->StepFrequency, LowerLimitFrequencyBandTable[gTxVfo->Band]);
 
 						gRequestSaveChannel = 1;
diff --git a/firmware.bin b/firmware.bin
index b4badb5..f824da8 100644
Binary files a/firmware.bin and b/firmware.bin differ
diff --git a/firmware.packed.bin b/firmware.packed.bin
index af1f3b0..4e37676 100644
Binary files a/firmware.packed.bin and b/firmware.packed.bin differ
diff --git a/frequencies.c b/frequencies.c
index faf71cd..d68ee6a 100644
--- a/frequencies.c
+++ b/frequencies.c
@@ -21,7 +21,7 @@
 // the BK4819 has 2 bands it covers, 18MHz ~ 630MHz and 760MHz ~ 1300MHz
 
 const uint32_t bx_start1_Hz = 1800000;		// 18MHz
-const uint32_t bx_stop1_Hz  = 1800000;		// 630MHz
+const uint32_t bx_stop1_Hz  = 63000000;		// 630MHz
 
 const uint32_t bx_start2_Hz = 76000000;		// 760MHz
 const uint32_t bx_stop2_Hz  = 130000000;	// 1300MHz
@@ -189,7 +189,7 @@ int TX_FREQUENCY_Check(const uint32_t Frequency)
 
 	if (Frequency < LowerLimitFrequencyBandTable[0] || Frequency > UpperLimitFrequencyBandTable[6])
 		return -1;
-	if (Frequency >= 63000000 && Frequency < 75700000)
+	if (Frequency >= bx_stop1_Hz && Frequency < bx_start2_Hz)
 		return -1;
 
 	switch (gSetting_F_LOCK)
@@ -254,7 +254,7 @@ int RX_FREQUENCY_Check(const uint32_t Frequency)
 
 	if (Frequency < LowerLimitFrequencyBandTable[0] || Frequency > UpperLimitFrequencyBandTable[6])
 		return -1;
-	if (Frequency >= 63000000 && Frequency < 75700000)
+	if (Frequency >= bx_stop1_Hz && Frequency < bx_start2_Hz)
 		return -1;
 
 	return 0;   // OK frequency