diff --git a/Multiprotocol/FX_nrf24l01.ino b/Multiprotocol/FX_nrf24l01.ino
index b28af53..dd21443 100644
--- a/Multiprotocol/FX_nrf24l01.ino
+++ b/Multiprotocol/FX_nrf24l01.ino
@@ -18,18 +18,21 @@ Multiprotocol is distributed in the hope that it will be useful,
 
 #include "iface_xn297.h"
 
-#define FX_INITIAL_WAIT     500
-#define FX_BIND_COUNT	    300		//3sec
-#define FX_SWITCH			20
-#define FX_NUM_CHANNELS     4
+#define FX_INITIAL_WAIT				500
+#define FX_BIND_COUNT				300		//3sec
+#define FX_SWITCH					20
+#define FX_NUM_CHANNELS				4
 
-#define FX816_PACKET_PERIOD 10000
-#define FX816_BIND_CHANNEL  40
-#define FX816_PAYLOAD_SIZE  6
+#define FX816_PACKET_PERIOD			10000
+#define FX816_BIND_CHANNEL			40
+#define FX816_PAYLOAD_SIZE			6
+#define FX816_CH_OFFSET				3
 
-#define FX620_PACKET_PERIOD 3250
-#define FX620_BIND_CHANNEL  18
-#define FX620_PAYLOAD_SIZE  7
+#define FX620_PACKET_PERIOD 		3250
+#define FX620_BIND_PACKET_PERIOD	4500
+#define FX620_BIND_CHANNEL			18
+#define FX620_PAYLOAD_SIZE			7
+#define FX620_CH_OFFSET				1
 
 #define FORCE_FX620_ID
 
@@ -45,15 +48,15 @@ static void __attribute__((unused)) FX_send_packet()
 	memset(packet,0x00,packet_length);
 
 	//Channels
-	uint8_t offset=sub_protocol == FX816 ? 3:1;
-	uint8_t val=convert_channel_8b(AILERON);		// Can FX620 have a proportional value, the original radio does not but...
+	uint8_t offset=sub_protocol == FX816 ? FX816_CH_OFFSET:FX620_CH_OFFSET;
+	uint8_t val=convert_channel_8b(AILERON);
 	if(val>127+FX_SWITCH)
 		packet[offset] = sub_protocol == FX816 ? 1:0xFF;
 	else if(val<127-FX_SWITCH)
 		packet[offset] = sub_protocol == FX816 ? 2:0x00;
 	else
 		packet[offset] = sub_protocol == FX816 ? 0:0x7F;
-	packet[offset+1] = convert_channel_16b_limit(THROTTLE,0,100);
+	packet[offset+1] = convert_channel_16b_limit(THROTTLE,0,100);	//FX816:0x00..0x63, FX620:0x00..0x5E but that should work
 
 	//Bind and specifics
 	if(sub_protocol == FX816)
@@ -86,7 +89,7 @@ static void __attribute__((unused)) FX_send_packet()
 	packet[packet_length-1]=val;
 
 	//Debug
-	#if 0
+	#if 1
 		for(uint8_t i=0;i<packet_length;i++)
 			debug("%02X ",packet[i]);
 		debugln("");
@@ -121,8 +124,8 @@ static void __attribute__((unused)) FX_initialize_txid()
 		//I didn't open the plane to find out if I could connect there so this is the best I came up with with few trial and errors...
 		rx_tx_addr[0]=0x35+(rx_tx_addr[3]&0x07);							//Original dump=0x35
 		rx_tx_addr[1]=0x09;													//Original dump=0x09
-		memcpy(hopping_frequency,"\x09\x1B\x30\x42",FX816_NUM_CHANNELS);	//Original dump=9=0x09,27=0x1B,48=0x30,66=0x42
-		for(uint8_t i=0;i<FX816_NUM_CHANNELS;i++)
+		memcpy(hopping_frequency,"\x09\x1B\x30\x42",FX_NUM_CHANNELS);		//Original dump=9=0x09,27=0x1B,48=0x30,66=0x42
+		for(uint8_t i=0;i<FX_NUM_CHANNELS;i++)
 			hopping_frequency[i]+=rx_tx_addr[3]&0x07;
 
 		packet_length = FX816_PAYLOAD_SIZE;
@@ -136,13 +139,11 @@ static void __attribute__((unused)) FX_initialize_txid()
 		memcpy(rx_tx_addr,(uint8_t*)"\x34\xA9\x32",3);
 		hopping_frequency[0] = 0x18;	//on dump: 24 34 44 54
 		#endif
-		//no idea if this is true...
-		hopping_frequency[1] = 10 + hopping_frequency[0];
-		hopping_frequency[2] = 20 + hopping_frequency[0];
-		hopping_frequency[3] = 30 + hopping_frequency[0];
+		for(uint8_t i=1;i<FX_NUM_CHANNELS;i++)
+			hopping_frequency[i] = i*10 + hopping_frequency[0];
 
 		packet_length = FX620_PAYLOAD_SIZE;
-		packet_period = FX620_PACKET_PERIOD;
+		packet_period = FX620_BIND_PACKET_PERIOD;
 	}
 }
 
@@ -156,7 +157,10 @@ uint16_t FX_callback()
 		{
 			BIND_DONE;
 			if(sub_protocol == FX620)
+			{
 				XN297_SetTXAddr(rx_tx_addr, 3);
+				packet_period = FX620_PACKET_PERIOD;
+			}
 		}
 	FX_send_packet();
 	return packet_period;
diff --git a/Multiprotocol/Multiprotocol.h b/Multiprotocol/Multiprotocol.h
index 52cf078..8f17876 100644
--- a/Multiprotocol/Multiprotocol.h
+++ b/Multiprotocol/Multiprotocol.h
@@ -19,7 +19,7 @@
 #define VERSION_MAJOR		1
 #define VERSION_MINOR		3
 #define VERSION_REVISION	3
-#define VERSION_PATCH_LEVEL	16
+#define VERSION_PATCH_LEVEL	17
 
 #define MODE_SERIAL 0