diff --git a/.travis.yml b/.travis.yml
index 4354623..8d82629 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -49,10 +49,10 @@ before_install:
         exitcode=$((exitcode+$?));
         mv build/Multiprotocol.ino.bin ./binaries/multi-orangerx-aetr-blue-inv-v$MULTI_VERSION.bin;
         cp Multiprotocol/Multi.txt ./binaries/Multi.txt;
-        mkdir -p TOOLS/SCRIPTS;
-        cp Lua_scripts/*.lua TOOLS/SCRIPTS/;
-        cp Lua_scripts/*.txt TOOLS/SCRIPTS/;
-        zip ./binaries/MultiLuaScripts.zip TOOLS/SCRIPTS/*;
+        mkdir -p SCRIPTS/TOOLS;
+        cp Lua_scripts/*.lua SCRIPTS/TOOLS/;
+        cp Lua_scripts/*.txt SCRIPTS/TOOLS/;
+        zip ./binaries/MultiLuaScripts.zip SCRIPTS/TOOLS/*;
         return $exitcode; };
     elif [[ "$BOARD" == "multi4in1:avr:multiatmega328p:bootloader=none" ]]; then
       buildReleaseFiles(){
diff --git a/Lua_scripts/MultiChan.txt b/Lua_scripts/MultiChan.txt
index 6fa989d..4a2c3d0 100644
--- a/Lua_scripts/MultiChan.txt
+++ b/Lua_scripts/MultiChan.txt
@@ -54,7 +54,8 @@
 28,4,Flysky_AFHDS2A,PWM_IB16,0,CH5,CH6,CH7,CH8,CH9,CH10,CH11,CH12,CH13,CH14,CH15,CH16
 28,5,Flysky_AFHDS2A,PPM_IB16,0,CH5,CH6,CH7,CH8,CH9,CH10,CH11,CH12,CH13,CH14,CH15,CH16
 56,0,Flysky2A_RX,RX,0,CH5,CH6,CH7,CH8,CH9,CH10,CH11,CH12,CH13,CH14
-53,0,Flyzone,FZ-410,0
+53,0,Height,5ch,0,Gear
+53,1,Height,8ch,0,Gear,Gyro,Flap,Light
 25,0,FrSkyV,V8,0,CH5,CH6,CH7,CH8
 3,0,FrSkyD,D8,0,CH5,CH6,CH7,CH8
 3,0,FrSkyD,D8Cloned,0,CH5,CH6,CH7,CH8
@@ -134,9 +135,11 @@
 31,2,Q303,CX10D,1,Arm,Flip
 31,3,Q303,CX10WD,1,Arm,Flip
 72,0,Q90C,Std,0,FMode,VTX+
+74,0,RadioLink,Surface,0,CH5,CH6,CH7,CH8,FS_CH1,FS_CH2,FS_CH3,FS_CH4,FS_CH5,FS_CH6,FS_CH7,FS_CH8
+74,1,RadioLink,Air,0,CH5,CH6,CH7,CH8,FS_CH1,FS_CH2,FS_CH3,FS_CH4,FS_CH5,FS_CH6,FS_CH7,FS_CH8
+76,0,Realacc,R11,1,Flip,Light,Calib,HLess,RTH,UNK
 50,0,Redpine,Fast,0,sCH5,sCH6,sCH7,sCH8,sCH9,sCH10,sCH11,sCH12,sCH13,sCH14,sCH15,sCH16
 50,1,Redpine,Slow,0,sCH5,sCH6,sCH7,sCH8,sCH9,sCH10,sCH11,sCH12,sCH13,sCH14,sCH15,sCH16
-74,0,RadioLink,Surface,0,CH5,CH6,CH7,CH8,FS_CH1,FS_CH2,FS_CH3,FS_CH4,FS_CH5,FS_CH6,FS_CH7,FS_CH8
 21,0,SFHSS,Std,0,CH5,CH6,CH7,CH8
 19,0,Shenqi,Cycle,1
 68,0,Skyartec,Std,0,CH5,CH6,CH7
diff --git a/Multiprotocol/A7105_SPI.ino b/Multiprotocol/A7105_SPI.ino
index fe76637..9703d50 100644
--- a/Multiprotocol/A7105_SPI.ino
+++ b/Multiprotocol/A7105_SPI.ino
@@ -192,9 +192,9 @@ void A7105_AdjustLOBaseFreq(uint8_t cmd)
 					offset=(int16_t)FORCE_FLYSKY_TUNING;
 				#endif
 				break;
-			case PROTO_FLYZONE:
-				#ifdef FORCE_FLYZONE_TUNING
-					offset=(int16_t)FORCE_FLYZONE_TUNING;
+			case PROTO_HEIGHT:
+				#ifdef FORCE_HEIGHT_TUNING
+					offset=(int16_t)FORCE_HEIGHT_TUNING;
 				#endif
 				break;
 			case PROTO_PELIKAN:
@@ -287,8 +287,8 @@ const uint8_t PROGMEM FLYSKY_A7105_regs[] = {
 	0x01, 0x0f // 30 - 31
 };
 #endif
-#ifdef FLYZONE_A7105_INO
-const uint8_t PROGMEM FLYZONE_A7105_regs[] = {
+#ifdef HEIGHT_A7105_INO
+const uint8_t PROGMEM HEIGHT_A7105_regs[] = {
 	0xff, 0x42, 0x00, 0x07, 0x00, 0xff, 0xff ,0x00, 0x00, 0x00, 0x00, 0x01, 0x21, 0x05, 0x01, 0x50,	// 00 - 0f
 	0x9e, 0x4b, 0x00, 0x02, 0x16, 0x2b, 0x12, 0x00, 0x62, 0x80, 0x80, 0x00, 0x0a, 0x32, 0xc3, 0x1f,	// 10 - 1f
 	0x12, 0x00, 0x00, 0xff, 0x00, 0x00, 0x3a, 0x00, 0x3f, 0x47, 0x80, 0x03, 0x01, 0x45, 0x18, 0x00,	// 20 - 2f
@@ -327,10 +327,10 @@ void A7105_Init(void)
 	uint8_t *A7105_Regs=0;
     uint8_t vco_calibration0, vco_calibration1;
 	
-	#ifdef FLYZONE_A7105_INO
-		if(protocol==PROTO_FLYZONE)
+	#ifdef HEIGHT_A7105_INO
+		if(protocol==PROTO_HEIGHT)
 		{
-			A7105_Regs=(uint8_t*)FLYZONE_A7105_regs;
+			A7105_Regs=(uint8_t*)HEIGHT_A7105_regs;
 			A7105_WriteID(0x25A53C45);
 		}
 		else
@@ -383,6 +383,10 @@ void A7105_Init(void)
 				if(i==0x20) val=0x1E;
 			}
 		#endif
+		#ifdef HEIGHT_A7105_INO
+			if(protocol==PROTO_HEIGHT && sub_protocol==HEIGHT_8CH)
+				if(i==0x03) val=0x0A;
+		#endif
 		if( val != 0xFF)
 			A7105_WriteReg(i, val);
 	}
@@ -437,7 +441,7 @@ void A7105_Init(void)
 					case PROTO_FLYSKY:
 						vco_calibration1=0x08;
 						break;
-					case PROTO_FLYZONE:
+					case PROTO_HEIGHT:
 						vco_calibration1=0x02;
 						break;
 					case PROTO_PELIKAN:
diff --git a/Multiprotocol/AFHDS2A_Rx_a7105.ino b/Multiprotocol/AFHDS2A_Rx_a7105.ino
index c90c1d5..1c4cc51 100644
--- a/Multiprotocol/AFHDS2A_Rx_a7105.ino
+++ b/Multiprotocol/AFHDS2A_Rx_a7105.ino
@@ -104,6 +104,7 @@ uint16_t AFHDS2A_Rx_callback()
 
 	switch(phase) {
 	case AFHDS2A_RX_BIND1:
+		if(IS_BIND_DONE) return initAFHDS2A_Rx();	// Abort bind
 		if (AFHDS2A_Rx_data_ready()) {
 			A7105_ReadData(AFHDS2A_RX_TXPACKET_SIZE);
 			if ((packet[0] == 0xbb && packet[9] == 0x01) ||	(packet[0] == 0xbc && packet[9] <= 0x02)) {
@@ -118,6 +119,7 @@ uint16_t AFHDS2A_Rx_callback()
 		return 10000;
 
 	case AFHDS2A_RX_BIND2:
+		if(IS_BIND_DONE) return initAFHDS2A_Rx();	// Abort bind
 		// got 2nd bind packet from tx ?
 		if (AFHDS2A_Rx_data_ready()) {
 			A7105_ReadData(AFHDS2A_RX_TXPACKET_SIZE);
@@ -143,6 +145,7 @@ uint16_t AFHDS2A_Rx_callback()
 		packet[9] = 0x01;
 		packet[10] = 0x00;
 		memset(&packet[11], 0xFF, 26);
+		A7105_SetTxRxMode(TX_EN);
 		A7105_WriteData(AFHDS2A_RX_RXPACKET_SIZE, packet_count++ & 1 ? 0x0D : 0x8C);
 		phase |= AFHDS2A_RX_WAIT_WRITE;
 		return 1700;
@@ -153,6 +156,7 @@ uint16_t AFHDS2A_Rx_callback()
 		while (micros() - pps_timer < 700) // Wait max 700µs, using serial+telemetry exit in about 120µs
 			if (!(A7105_ReadReg(A7105_00_MODE) & 0x01))
 				break;
+		A7105_SetTxRxMode(RX_EN);
 		A7105_Strobe(A7105_RX);
 		phase &= ~AFHDS2A_RX_WAIT_WRITE;
 		return 10000;
diff --git a/Multiprotocol/Bayang_Rx_nrf24l01.ino b/Multiprotocol/Bayang_Rx_nrf24l01.ino
index 31197b6..d85230f 100644
--- a/Multiprotocol/Bayang_Rx_nrf24l01.ino
+++ b/Multiprotocol/Bayang_Rx_nrf24l01.ino
@@ -129,6 +129,7 @@ uint16_t Bayang_Rx_callback()
 
 	switch (phase) {
 	case BAYANG_RX_BIND:
+		if(IS_BIND_DONE) return initBayang_Rx();	// Abort bind
 		if (NRF24L01_ReadReg(NRF24L01_07_STATUS) & _BV(NRF24L01_07_RX_DR)) {
 			// data received from TX
 			if (XN297_ReadPayload(packet, BAYANG_RX_PACKET_SIZE) && ( packet[0] == 0xA4 || packet[0] == 0xA2 ) && Bayang_Rx_check_validity()) {
diff --git a/Multiprotocol/FrSkyR9_sx1276.ino b/Multiprotocol/FrSkyR9_sx1276.ino
index 1f2f752..02d4882 100644
--- a/Multiprotocol/FrSkyR9_sx1276.ino
+++ b/Multiprotocol/FrSkyR9_sx1276.ino
@@ -102,6 +102,61 @@ static void __attribute__((unused)) FrSkyR9_build_packet()
 	packet[25] = crc >> 8;				// high byte
 }
 
+static uint8_t __attribute__((unused)) FrSkyR9_CRC8(uint8_t *p, uint8_t l)
+{
+	uint8_t crc = 0xFF;
+	for (uint8_t i = 0; i < l; i++)
+    {
+		crc = crc ^ p[i];
+		for ( uint8_t j = 0; j < 8; j++ ) 
+			if ( crc & 0x80 )
+			{
+				crc <<= 1;
+				crc ^= 0x07;
+			}
+			else
+				crc <<= 1;
+	}
+	return crc;
+}
+
+static void __attribute__((unused)) FrSkyR9_build_EU_packet()
+{
+	//ID
+	packet[0] = rx_tx_addr[1];
+	packet[1] = rx_tx_addr[2];
+	packet[2] = rx_tx_addr[3];
+
+	//Hopping
+	packet[3] = FrSkyX_chanskip;		// step size and last 2 channels start index
+
+	//RX number
+	packet[4] = RX_num;					// receiver number from OpenTX
+
+	//Channels
+	//TODO FrSkyX_channels(5,4);			// Set packet[5]=failsafe and packet[6..11]=4 channels data
+
+	//Bind
+	if(IS_BIND_IN_PROGRESS)
+	{
+		packet[5] = 0x01;				// bind indicator
+		if((sub_protocol & 2) == 0)
+			packet[5] |= 0x10;			// 16CH
+		// if(sub_protocol & 1)
+			// packet[5] |= 0x20;			// 868
+		if(binding_idx&0x01)
+			packet[5] |= 0x40;			// telem OFF
+		if(binding_idx&0x02)
+			packet[5] |= 0x80;			// ch9-16
+	}
+
+	//Sequence and send SPort
+	packet[12] = (FrSkyX_RX_Seq << 4)|0x08;	//TX=8 at startup
+
+	//CRC
+	packet[13] = FrSkyR9_CRC8(packet, 13);
+}
+
 uint16_t initFrSkyR9()
 {
 	//Check frequencies
@@ -127,6 +182,12 @@ uint16_t initFrSkyR9()
 		FrSkyFormat=1;											// 8 channels
 	debugln("%dCH", FrSkyFormat&1 ? 8:16);
 	
+	//EU packet length
+	if( (sub_protocol & 0xFD) == R9_EU )
+		packet_length=14;
+	else
+		packet_length=26;
+
 	//SX1276 Init
 	SX1276_SetMode(true, false, SX1276_OPMODE_SLEEP);
 	SX1276_SetMode(true, false, SX1276_OPMODE_STDBY);
@@ -146,7 +207,8 @@ uint16_t initFrSkyR9()
 	SX1276_SetHopPeriod(0);										// 0 = disabled, we hop frequencies manually
 	SX1276_SetPaDac(true);
 	SX1276_SetTxRxMode(TX_EN);									// Set RF switch to TX
-
+	//Enable all IRQ flags
+	SX1276_WriteReg(SX1276_11_IRQFLAGSMASK,0x00);
 	FrSkyX_telem_init();
 	
 	hopping_frequency_no=0;
@@ -168,14 +230,17 @@ uint16_t FrSkyR9_callback()
 			// output_power: 2 dBm (17-(15-OutputPower) (if pa_boost_pin == true))
 			SX1276_SetPaConfig(true, 7, 0);						// Lowest power for the T18
 			//Build packet
-			FrSkyR9_build_packet();
+			if( packet_length == 26 )
+				FrSkyR9_build_packet();
+			else
+				FrSkyR9_build_EU_packet();
 			phase++;
 			return 460;											// Frequency settle time
 		case FRSKYR9_DATA:
 			//Set RF switch to TX
 			SX1276_SetTxRxMode(TX_EN);
 			//Send packet
-			SX1276_WritePayloadToFifo(packet, 26);
+			SX1276_WritePayloadToFifo(packet, packet_length);
 			SX1276_SetMode(true, false, SX1276_OPMODE_TX);
 #if not defined TELEMETRY
 			phase=FRSKYR9_FREQ;
@@ -192,6 +257,8 @@ uint16_t FrSkyR9_callback()
 			SX1276_WriteReg(SX1276_0D_FIFOADDRPTR, 0x00);
 			//Set RF switch to RX
 			SX1276_SetTxRxMode(RX_EN);
+			//Clear all IRQ flags
+			SX1276_WriteReg(SX1276_12_REGIRQFLAGS,0xFF);
 			//Switch to RX
 			SX1276_WriteReg(SX1276_01_OPMODE, 0x85);
 			phase++;
@@ -230,8 +297,6 @@ uint16_t FrSkyR9_callback()
 				FrSkyX_telem_init();							// Reset telemetry
 			else
 				telemetry_link=1;								// Send telemetry out anyway
-			//Clear all flags
-			SX1276_WriteReg(SX1276_12_REGIRQFLAGS,0xFF);
 			phase=FRSKYR9_FREQ;
 			break;
 #endif
diff --git a/Multiprotocol/FrSky_Rx_cc2500.ino b/Multiprotocol/FrSky_Rx_cc2500.ino
index 47bcc06..0bfa84d 100644
--- a/Multiprotocol/FrSky_Rx_cc2500.ino
+++ b/Multiprotocol/FrSky_Rx_cc2500.ino
@@ -358,7 +358,6 @@ static void __attribute__((unused)) frsky_rx_data()
 
 uint16_t initFrSky_Rx()
 {
-	state = 0;
 	frsky_rx_chanskip = 1;
 	hopping_frequency_no = 0;
 	rx_data_started = false;
@@ -383,6 +382,8 @@ uint16_t FrSky_Rx_callback()
 	static int8_t tune_low, tune_high;
 	uint8_t len, ch;
 
+	if(IS_BIND_DONE && phase != FRSKY_RX_DATA) return initFrSky_Rx();	// Abort bind
+
 	if ((prev_option != option) && (phase >= FRSKY_RX_DATA))
 	{
 		if (option == 0)
@@ -412,6 +413,7 @@ uint16_t FrSky_Rx_callback()
 					phase = FRSKY_RX_TUNE_LOW;
 					debugln("FRSKY_RX_TUNE_LOW");
 					frsky_rx_strobe_rx();
+					state = 0;
 					return 1000;
 				}
 			}
@@ -483,7 +485,7 @@ uint16_t FrSky_Rx_callback()
 						}
 					}
 					else
-						state=0x3FF; //No hop table for D16v2
+						state = 0x3FF; //No hop table for D16v2
 					if (state == 0x3FF)
 					{
 						debugln("Bind complete");
diff --git a/Multiprotocol/Flyzone_a7105.ino b/Multiprotocol/Height_a7105.ino
similarity index 79%
rename from Multiprotocol/Flyzone_a7105.ino
rename to Multiprotocol/Height_a7105.ino
index 6accb00..6377459 100644
--- a/Multiprotocol/Flyzone_a7105.ino
+++ b/Multiprotocol/Height_a7105.ino
@@ -14,16 +14,16 @@
  */
 // Compatible with FZ-410 TX
 
-#if defined(FLYZONE_A7105_INO)
+#if defined(HEIGHT_A7105_INO)
 
 #include "iface_a7105.h"
 
-//#define FLYZONE_FORCEID
+//#define HEIGHT_FORCEID
 
-#define FLYZONE_BIND_COUNT	220		// 5 sec
-#define FLYZONE_BIND_CH		0x18	// TX, RX for bind end is 0x17
+#define HEIGHT_BIND_COUNT	220		// 5 sec
+#define HEIGHT_BIND_CH		0x18	// TX, RX for bind end is 0x17
 
-static void __attribute__((unused)) flyzone_build_packet()
+static void __attribute__((unused)) HEIGHT_build_packet()
 {
     packet[0] = 0xA5;
     packet[1] = rx_tx_addr[2];
@@ -33,11 +33,17 @@ static void __attribute__((unused)) flyzone_build_packet()
 	packet[5] = convert_channel_8b(THROTTLE);	//00..FF
 	packet[6] = convert_channel_8b(RUDDER);		//00..80..FF
     packet[7] = convert_channel_8b(CH5);		//00..80..FF
+    if(sub_protocol == HEIGHT_8CH)
+	{
+		packet[8] = convert_channel_8b(CH6);	//00..80..FF
+		packet[9] = convert_channel_8b(CH7);	//00..80..FF
+		packet[10] = convert_channel_8b(CH8);	//00..80..FF
+	}
 }
 
-uint16_t ReadFlyzone()
+uint16_t ReadHeight()
 {
-	#ifndef FORCE_FLYZONE_TUNING
+	#ifndef FORCE_HEIGHT_TUNING
 		A7105_AdjustLOBaseFreq(1);
 	#endif
 	if(IS_BIND_IN_PROGRESS)
@@ -45,7 +51,7 @@ uint16_t ReadFlyzone()
 		packet[0] = 0x1B;
 		packet[1] = rx_tx_addr[2];
 		packet[2] = rx_tx_addr[3];
-		A7105_WriteData(3, FLYZONE_BIND_CH);
+		A7105_WriteData(3, HEIGHT_BIND_CH);
 		if (bind_counter--==0)
 			BIND_DONE;
 		return 22700;
@@ -58,8 +64,8 @@ uint16_t ReadFlyzone()
 			#ifdef MULTI_SYNC
 				telemetry_set_input_sync(20*1500);
 			#endif
-			flyzone_build_packet();
-			A7105_WriteData(8, hopping_frequency[0]);
+			HEIGHT_build_packet();
+			A7105_WriteData(sub_protocol?11:8, hopping_frequency[0]);
 			A7105_SetPower();
 		}
 		else
@@ -72,14 +78,14 @@ uint16_t ReadFlyzone()
 	return 1500;
 }
 
-uint16_t initFlyzone()
+uint16_t initHeight()
 {
 	A7105_Init();
 
 	hopping_frequency[0]=((random(0xfefefefe) & 0x0F)+2)<<2;
 	hopping_frequency[1]=hopping_frequency[0]+0x50;
 	
-	#ifdef FLYZONE_FORCEID
+	#ifdef HEIGHT_FORCEID
 		rx_tx_addr[2]=0x35;
 		rx_tx_addr[3]=0xD0;
 		hopping_frequency[0]=0x18;
@@ -87,7 +93,7 @@ uint16_t initFlyzone()
 	#endif
 	
 	phase=255;
-	bind_counter = FLYZONE_BIND_COUNT;
+	bind_counter = HEIGHT_BIND_COUNT;
 	return 2400;
 }
 #endif
diff --git a/Multiprotocol/Multi.txt b/Multiprotocol/Multi.txt
index 803e6e9..0e4020e 100644
--- a/Multiprotocol/Multi.txt
+++ b/Multiprotocol/Multi.txt
@@ -50,7 +50,7 @@
 50,Redpine,Fast,Slow
 51,Potensic,A20
 52,ZSX,280
-53,Flyzone,FZ-410
+53,Height,5ch,8ch
 54,Scanner
 55,Frsky_RX,RX,CloneTX
 56,AFHDS2A_RX
@@ -71,4 +71,6 @@
 71,JJRC345
 72,Q90C
 73,Kyosho
-74,RadioLink,Surface
\ No newline at end of file
+74,RadioLink,Surface
+76,Realacc,R11
+77,OMP
\ No newline at end of file
diff --git a/Multiprotocol/Multi_Names.ino b/Multiprotocol/Multi_Names.ino
index f549c2f..c339f44 100644
--- a/Multiprotocol/Multi_Names.ino
+++ b/Multiprotocol/Multi_Names.ino
@@ -72,7 +72,7 @@ const char STR_KF606[]		="KF606";
 const char STR_REDPINE[]	="Redpine";
 const char STR_POTENSIC[]	="Potensi";
 const char STR_ZSX[]		="ZSX";
-const char STR_FLYZONE[]	="FlyZone";
+const char STR_HEIGHT[]		="Height";
 const char STR_SCANNER[]	="Scanner";
 const char STR_FRSKY_RX[]	="FrSkyRX";
 const char STR_AFHDS2A_RX[]	="FS2A_RX";
@@ -88,6 +88,8 @@ const char STR_PROPEL[]		="Propel";
 const char STR_SKYARTEC[]	="Skyartc";
 const char STR_KYOSHO[]		="Kyosho";
 const char STR_RLINK[]		="RadLink";
+const char STR_REALACC[]	="Realacc";
+const char STR_OMP[]		="OMP";
 const char STR_TEST[]		="Test";
 const char STR_FAKE[]		="Fake";
 
@@ -125,7 +127,7 @@ const char STR_SUBTYPE_GD00X[] =      "\x05""GD_V1""GD_V2";
 const char STR_SUBTYPE_REDPINE[] =    "\x04""Fast""Slow";
 const char STR_SUBTYPE_POTENSIC[] =   "\x03""A20";
 const char STR_SUBTYPE_ZSX[] =        "\x07""280JJRC";
-const char STR_SUBTYPE_FLYZONE[] =    "\x05""FZ410";
+const char STR_SUBTYPE_HEIGHT[] =    "\x03""5ch""8ch";
 const char STR_SUBTYPE_FX816[] =      "\x03""P38";
 const char STR_SUBTYPE_XN297DUMP[] =  "\x07""250Kbps""1Mbps\0 ""2Mbps\0 ""Auto\0  ""NRF\0   ";
 const char STR_SUBTYPE_ESKY150[] =    "\x03""4ch""7ch";
@@ -140,8 +142,9 @@ const char STR_SUBTYPE_FRSKYL[] =     "\x08""LR12\0   ""LR12 6ch";
 const char STR_SUBTYPE_WFLY[] =       "\x06""WFR0xS";
 const char STR_SUBTYPE_HOTT[] =       "\x07""Sync\0  ""No_Sync";
 const char STR_SUBTYPE_PELIKAN[] =    "\x04""Pro\0""Lite";
-const char STR_SUBTYPE_V761[] =       "\x03""3CH""4CH";
-const char STR_SUBTYPE_RLINK[] =      "\x07""Surface";
+const char STR_SUBTYPE_V761[] =       "\x03""3ch""4ch";
+const char STR_SUBTYPE_RLINK[] =      "\x07""Surface""Air\0   ";
+const char STR_SUBTYPE_REALACC[] =     "\x03""R11";
 
 enum
 {
@@ -224,8 +227,8 @@ const mm_protocol_definition multi_protocols[] = {
 	#if defined(AFHDS2A_RX_A7105_INO)
 		{PROTO_AFHDS2A_RX, STR_AFHDS2A_RX,0, NO_SUBTYPE,            OPTION_NONE    },
 	#endif
-	#if defined(FLYZONE_A7105_INO)
-		{PROTO_FLYZONE,    STR_FLYZONE,   1, STR_SUBTYPE_FLYZONE,   OPTION_NONE    },
+	#if defined(HEIGHT_A7105_INO)
+		{PROTO_HEIGHT,    STR_HEIGHT,   2, STR_SUBTYPE_HEIGHT,   OPTION_NONE    },
 	#endif
 	#if defined(FQ777_NRF24L01_INO)
 		{PROTO_FQ777,      STR_FQ777,     0, NO_SUBTYPE,            OPTION_NONE    },
@@ -305,6 +308,9 @@ const mm_protocol_definition multi_protocols[] = {
 	#if defined(NCC1701_NRF24L01_INO)
 		{PROTO_NCC1701,    STR_NCC1701,   0, NO_SUBTYPE,            OPTION_NONE    },
 	#endif
+	#if defined(OMP_NRF24L01_INO)
+		{PROTO_OMP,        STR_OMP,       0, NO_SUBTYPE,            OPTION_RFTUNE  },
+	#endif
 	#if defined(PELIKAN_A7105_INO)
 		{PROTO_PELIKAN,    STR_PELIKAN  , 2, STR_SUBTYPE_PELIKAN,   OPTION_NONE    },	
 	#endif
@@ -323,12 +329,15 @@ const mm_protocol_definition multi_protocols[] = {
 	#if defined(Q90C_NRF24L01_INO)
 		{PROTO_Q90C,       STR_Q90C,      0, NO_SUBTYPE,            OPTION_RFTUNE  },
 	#endif
+	#if defined(RLINK_CC2500_INO)
+		{PROTO_RLINK,      STR_RLINK,     2, STR_SUBTYPE_RLINK,     OPTION_RFTUNE  },
+	#endif
+	#if defined(REALACC_NRF24L01_INO)
+		{PROTO_REALACC,    STR_REALACC,   1, STR_SUBTYPE_REALACC,   OPTION_NONE    },
+	#endif
 	#if defined(REDPINE_CC2500_INO)
 		{PROTO_REDPINE,    STR_REDPINE,   2, STR_SUBTYPE_REDPINE,   OPTION_RFTUNE  },
 	#endif
-	#if defined(RLINK_CC2500_INO)
-		{PROTO_RLINK,      STR_RLINK,     1, STR_SUBTYPE_RLINK,     OPTION_RFTUNE  },
-	#endif
 	#if defined(SCANNER_CC2500_INO)
 	//	{PROTO_SCANNER,    STR_SCANNER,   0, NO_SUBTYPE,            OPTION_NONE    },
 	#endif
diff --git a/Multiprotocol/Multiprotocol.h b/Multiprotocol/Multiprotocol.h
index f6040ce..295973e 100644
--- a/Multiprotocol/Multiprotocol.h
+++ b/Multiprotocol/Multiprotocol.h
@@ -19,7 +19,7 @@
 #define VERSION_MAJOR		1
 #define VERSION_MINOR		3
 #define VERSION_REVISION	1
-#define VERSION_PATCH_LEVEL	45
+#define VERSION_PATCH_LEVEL	56
 
 //******************
 // Protocols
@@ -79,7 +79,7 @@ enum PROTOCOLS
 	PROTO_REDPINE	= 50,	// =>CC2500
 	PROTO_POTENSIC	= 51,	// =>NRF24L01
 	PROTO_ZSX		= 52,	// =>NRF24L01
-	PROTO_FLYZONE	= 53,	// =>A7105
+	PROTO_HEIGHT	= 53,	// =>A7105
 	PROTO_SCANNER	= 54,	// =>CC2500
 	PROTO_FRSKY_RX	= 55,	// =>CC2500
 	PROTO_AFHDS2A_RX= 56,	// =>A7105
@@ -101,6 +101,8 @@ enum PROTOCOLS
 	PROTO_Q90C		= 72,	// =>NRF24L01 or CC2500
 	PROTO_KYOSHO	= 73,	// =>A7105
 	PROTO_RLINK		= 74,	// =>CC2500
+	PROTO_REALACC	= 76,	// =>NRF24L01
+	PROTO_OMP		= 77,	// =>NRF24L01
 
 	PROTO_FAKE		= 126,	// =>CC2500+NRF24L01
 	PROTO_TEST		= 127,	// =>CC2500
@@ -114,7 +116,7 @@ enum Flysky
 	V912	= 3,
 	CX20	= 4,
 };
-enum Flyzone
+enum Height
 {
 	FZ410	= 0,
 };
@@ -390,6 +392,12 @@ enum V761
 	V761_4CH	= 1,
 };
 
+enum HEIGHT
+{
+	HEIGHT_5CH	= 0,
+	HEIGHT_8CH	= 1,
+};
+
 #define NONE 		0
 #define P_HIGH		1
 #define P_LOW		0
@@ -596,17 +604,17 @@ enum {
 };
 
 // A7105 power
-//	Power amp is ~+16dBm so:
+// The numbers do not take into account any outside amplifier
 enum A7105_POWER
 {
-	A7105_POWER_0 = 0x00<<3 | 0x00,	// TXPOWER_100uW  = -23dBm == PAC=0 TBG=0
-	A7105_POWER_1 = 0x00<<3 | 0x01,	// TXPOWER_300uW  = -20dBm == PAC=0 TBG=1
-	A7105_POWER_2 = 0x00<<3 | 0x02,	// TXPOWER_1mW    = -16dBm == PAC=0 TBG=2
-	A7105_POWER_3 = 0x00<<3 | 0x04,	// TXPOWER_3mW    = -11dBm == PAC=0 TBG=4
-	A7105_POWER_4 = 0x01<<3 | 0x05,	// TXPOWER_10mW   =  -6dBm == PAC=1 TBG=5
-	A7105_POWER_5 = 0x02<<3 | 0x07,	// TXPOWER_30mW   =   0dBm == PAC=2 TBG=7
-	A7105_POWER_6 = 0x03<<3 | 0x07,	// TXPOWER_100mW  =   1dBm == PAC=3 TBG=7
-	A7105_POWER_7 = 0x03<<3 | 0x07	// TXPOWER_150mW  =   1dBm == PAC=3 TBG=7
+	A7105_POWER_0 = 0x00<<3 | 0x00,	// -23dBm == PAC=0 TBG=0
+	A7105_POWER_1 = 0x00<<3 | 0x01,	// -20dBm == PAC=0 TBG=1
+	A7105_POWER_2 = 0x00<<3 | 0x02,	// -16dBm == PAC=0 TBG=2
+	A7105_POWER_3 = 0x00<<3 | 0x04,	// -11dBm == PAC=0 TBG=4
+	A7105_POWER_4 = 0x01<<3 | 0x05,	//  -6dBm == PAC=1 TBG=5
+	A7105_POWER_5 = 0x02<<3 | 0x07,	//   0dBm == PAC=2 TBG=7
+	A7105_POWER_6 = 0x03<<3 | 0x07,	//  +1dBm == PAC=3 TBG=7
+	A7105_POWER_7 = 0x03<<3 | 0x07	//  +1dBm == PAC=3 TBG=7
 };
 #define A7105_HIGH_POWER	A7105_POWER_7
 #define	A7105_LOW_POWER		A7105_POWER_3
@@ -614,14 +622,13 @@ enum A7105_POWER
 #define	A7105_BIND_POWER	A7105_POWER_0
 
 // NRF Power
-// Power setting is 0..3 for nRF24L01
-// Claimed power amp for nRF24L01 from eBay is 20dBm. 
+// The numbers do not take into account any outside amplifier
 enum NRF_POWER
-{						//      Raw            w 20dBm PA
-	NRF_POWER_0 = 0x00,	// 0 : -18dBm  (16uW)   2dBm (1.6mW)
-	NRF_POWER_1 = 0x01,	// 1 : -12dBm  (60uW)   8dBm   (6mW)
-	NRF_POWER_2 = 0x02,	// 2 :  -6dBm (250uW)  14dBm  (25mW)
-	NRF_POWER_3 = 0x03	// 3 :   0dBm   (1mW)  20dBm (100mW)
+{
+	NRF_POWER_0 = 0x00,	// -18dBm
+	NRF_POWER_1 = 0x01,	// -12dBm
+	NRF_POWER_2 = 0x02,	//  -6dBm
+	NRF_POWER_3 = 0x03	//   0dBm
 };
 #define NRF_HIGH_POWER		NRF_POWER_3
 #define	NRF_LOW_POWER		NRF_POWER_1
@@ -658,6 +665,7 @@ enum CC2500_POWER
 #define CC2500_BIND_POWER	CC2500_POWER_1
 
 // CYRF power
+// The numbers do not take into account any outside amplifier
 enum CYRF_POWER
 {
 	CYRF_POWER_0 = 0x00,	// -35dbm
@@ -781,7 +789,7 @@ Serial: 100000 Baud 8e2      _ xxxx xxxx p --
 				REDPINE		50
 				POTENSIC	51
 				ZSX			52
-				FLYZONE		53
+				HEIGHT		53
 				SCANNER		54
 				FRSKY_RX	55
 				AFHDS2A_RX	56
@@ -803,6 +811,8 @@ Serial: 100000 Baud 8e2      _ xxxx xxxx p --
 				Q90C		72
 				KYOSHO		73
 				RLINK		74
+				REALACC		76
+				OMP			77
    BindBit=>		0x80	1=Bind/0=No
    AutoBindBit=>	0x40	1=Yes /0=No
    RangeCheck=>		0x20	1=Yes /0=No
@@ -993,6 +1003,9 @@ Serial: 100000 Baud 8e2      _ xxxx xxxx p --
 		sub_protocol==V761
 			V761_3CH	0
 			V761_4CH	1
+		sub_protocol==HEIGHT
+			HEIGHT_5CH	0
+			HEIGHT_8CH	1
 
    Power value => 0x80	0=High/1=Low
   Stream[3]   = option_protocol;
diff --git a/Multiprotocol/Multiprotocol.ino b/Multiprotocol/Multiprotocol.ino
index 9fdc022..abd3214 100644
--- a/Multiprotocol/Multiprotocol.ino
+++ b/Multiprotocol/Multiprotocol.ino
@@ -560,6 +560,11 @@ void setup()
 				option			=	FORCE_REDPINE_TUNING;		// Use config-defined tuning value for REDPINE
 			else
 		#endif
+		#if defined(FORCE_RADIOLINK_TUNING) && defined(RADIOLINK_CC2500_INO)
+			if (protocol==PROTO_RADIOLINK)
+				option			=	FORCE_RADIOLINK_TUNING;		// Use config-defined tuning value for RADIOLINK
+			else
+		#endif
 		#if defined(FORCE_HITEC_TUNING) && defined(HITEC_CC2500_INO)
 			if (protocol==PROTO_HITEC)
 				option			=	FORCE_HITEC_TUNING;		// Use config-defined tuning value for HITEC
@@ -1115,11 +1120,11 @@ static void protocol_init()
 						remote_callback = ReadBUGS;
 						break;
 				#endif
-				#if defined(FLYZONE_A7105_INO)
-					case PROTO_FLYZONE:
+				#if defined(HEIGHT_A7105_INO)
+					case PROTO_HEIGHT:
 						PE1_off;	//antenna RF1
-						next_callback = initFlyzone();
-						remote_callback = ReadFlyzone;
+						next_callback = initHeight();
+						remote_callback = ReadHeight;
 						break;
 				#endif
 				#if defined(AFHDS2A_RX_A7105_INO)
@@ -1593,6 +1598,18 @@ static void protocol_init()
 						remote_callback = Q90C_callback;
 						break;
 				#endif
+				#if defined(REALACC_NRF24L01_INO)
+					case PROTO_REALACC:
+						next_callback=initREALACC();
+						remote_callback = REALACC_callback;
+						break;
+				#endif
+				#if defined(OMP_NRF24L01_INO)
+					case PROTO_OMP:
+						next_callback=initOMP();
+						remote_callback = OMP_callback;
+						break;
+				#endif
 				#if defined(TEST_CC2500_INO)
 					case PROTO_TEST:
 						next_callback=initTEST();
@@ -1751,6 +1768,11 @@ void update_serial_data()
 			option=FORCE_REDPINE_TUNING;		// Use config-defined tuning value for REDPINE
 		else
 	#endif
+	#if defined(FORCE_RADIOLINK_TUNING) && defined(RADIOLINK_CC2500_INO)
+		if (protocol==PROTO_RADIOLINK)
+			option			=	FORCE_RADIOLINK_TUNING;		// Use config-defined tuning value for RADIOLINK
+		else
+	#endif
 	#if defined(FORCE_HITEC_TUNING) && defined(HITEC_CC2500_INO)
 		if (protocol==PROTO_HITEC)
 			option=FORCE_HITEC_TUNING;			// Use config-defined tuning value for HITEC
@@ -1905,7 +1927,7 @@ void update_serial_data()
 			}
 		#endif
 		#ifdef SPORT_SEND
-			if((protocol==PROTO_FRSKYX || protocol==PROTO_FRSKYX2 || PROTO_FRSKY_R9) && rx_len==35)
+			if((protocol==PROTO_FRSKYX || protocol==PROTO_FRSKYX2 || protocol==PROTO_FRSKY_R9) && rx_len==35)
 			{//Protocol waiting for 8 bytes
 				#define BYTE_STUFF	0x7D
 				#define STUFF_MASK	0x20
diff --git a/Multiprotocol/OMP_nrf24l01.ino b/Multiprotocol/OMP_nrf24l01.ino
new file mode 100644
index 0000000..7ea7e10
--- /dev/null
+++ b/Multiprotocol/OMP_nrf24l01.ino
@@ -0,0 +1,135 @@
+/*
+ This project is free software: you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation, either version 3 of the License, or
+ (at your option) any later version.
+
+Multiprotocol is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with Multiprotocol.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#if defined(OMP_NRF24L01_INO)
+
+#include "iface_nrf250k.h"
+
+#define FORCE_OMP_ORIGINAL_ID
+
+#define OMP_INITIAL_WAIT	500
+#define OMP_PACKET_PERIOD	5000
+#define OMP_RF_BIND_CHANNEL	35
+#define OMP_RF_NUM_CHANNELS	8
+#define OMP_PAYLOAD_SIZE	16
+#define OMP_BIND_COUNT		600	//3sec
+
+static void __attribute__((unused)) OMP_send_packet()
+{
+	if(IS_BIND_IN_PROGRESS)
+	{
+		memcpy(packet,"BND",3);
+		memcpy(&packet[3],rx_tx_addr,5);
+		memcpy(&packet[8],hopping_frequency,8);
+	}
+	else
+	{
+		memset(packet,0x00,OMP_PAYLOAD_SIZE);
+
+		//hopping frequency
+		packet[0 ] = hopping_frequency_no;	// |0x40 to request RX telemetry
+		XN297L_Hopping(hopping_frequency_no);
+		hopping_frequency_no++;
+		hopping_frequency_no &= OMP_RF_NUM_CHANNELS-1;	// 8 RF channels
+
+		//flags
+		packet[1 ] = 0x08								//unknown
+				   | GET_FLAG(CH5_SW, 0x20);			// HOLD
+
+		packet[2 ] = 0x40;								//unknown
+		
+		if(Channel_data[CH6] > CHANNEL_MAX_COMMAND)
+			packet[2 ] |= 0x20;							// IDLE2
+		else if(Channel_data[CH6] > CHANNEL_MIN_COMMAND)
+			packet[1 ] |= 0x40;							// IDLE1
+
+		if(Channel_data[CH7] > CHANNEL_MAX_COMMAND)
+			packet[2 ] |= 0x08;							// 3D
+		else if(Channel_data[CH7] > CHANNEL_MIN_COMMAND)
+			packet[2 ] |= 0x04;							// ATTITUDE
+
+		//trims??
+		//packet[3..6]
+
+		//channels TAER packed 11bits
+		uint16_t channel=convert_channel_16b_limit(THROTTLE,0,2047);
+		packet[7 ]  = channel;
+		packet[8 ]  = channel>>8;
+		channel=convert_channel_16b_limit(AILERON,0,2047);
+		packet[8 ] |= channel<<3;
+		packet[9 ]  = channel>>5;
+		channel=convert_channel_16b_limit(ELEVATOR,0,2047);
+		packet[10] |= channel<<6;
+		packet[11]  = channel>>2;
+		packet[12]  = channel>>10;
+		channel=convert_channel_16b_limit(RUDDER,0,2047);
+		packet[12] |= channel<<1;
+		packet[13]  = channel>>8;
+
+		//unknown
+		//packet[13] = 0x00;
+		//packet[14] = 0x00;
+		packet[15] = 0x04;
+	}
+
+	XN297L_SetPower();		// Set tx_power
+	XN297L_SetFreqOffset();	// Set frequency offset
+	XN297L_WriteEnhancedPayload(packet, OMP_PAYLOAD_SIZE, IS_BIND_IN_PROGRESS);
+}
+
+static void __attribute__((unused)) OMP_init()
+{
+	XN297L_Init();
+	XN297L_SetTXAddr((uint8_t*)"FLPBD", 5);
+	XN297L_HoppingCalib(OMP_RF_NUM_CHANNELS);	// Calibrate all channels
+	XN297L_RFChannel(OMP_RF_BIND_CHANNEL);		// Set bind channel
+}
+
+static void __attribute__((unused)) OMP_initialize_txid()
+{
+	calc_fh_channels(OMP_RF_NUM_CHANNELS);
+	#ifdef FORCE_OMP_ORIGINAL_ID
+		rx_tx_addr[0]=0x4E;
+		rx_tx_addr[1]=0x72;
+		rx_tx_addr[2]=0x8E;
+		rx_tx_addr[3]=0x70;
+		rx_tx_addr[4]=0x62;
+		for(uint8_t i=0; i<OMP_RF_NUM_CHANNELS;i++)
+			hopping_frequency[i]=(i+3)*5;
+	#endif
+}
+
+uint16_t OMP_callback()
+{
+	if(IS_BIND_IN_PROGRESS)
+		if(--bind_counter==0)
+			BIND_DONE;
+	OMP_send_packet();
+	#ifdef MULTI_SYNC
+		telemetry_set_input_sync(OMP_PACKET_PERIOD);
+	#endif
+	return OMP_PACKET_PERIOD;
+}
+
+uint16_t initOMP()
+{
+	OMP_initialize_txid();
+	OMP_init();
+	hopping_frequency_no = 0;
+	bind_counter=OMP_BIND_COUNT;
+	return OMP_INITIAL_WAIT;
+}
+
+#endif
diff --git a/Multiprotocol/Pelikan_a7105.ino b/Multiprotocol/Pelikan_a7105.ino
index 708e0b8..59558dc 100644
--- a/Multiprotocol/Pelikan_a7105.ino
+++ b/Multiprotocol/Pelikan_a7105.ino
@@ -127,7 +127,7 @@ uint16_t ReadPelikan()
 				if(sub_protocol==PELIKAN_PRO)
 					A7105_WriteReg(A7105_03_FIFOI,0x28);
 				else//PELIKAN_LITE
-					A7105_WriteID((rx_tx_addr[0]<<24)|(rx_tx_addr[1]<<16)|(rx_tx_addr[2]<<8)|(rx_tx_addr[3]));
+					A7105_WriteID(MProtocol_id);
 			}
 		}
 		#ifdef MULTI_SYNC
@@ -281,8 +281,9 @@ uint16_t initPelikan()
 		}
 	#endif
 
+	MProtocol_id=((uint32_t)rx_tx_addr[0]<<24)|((uint32_t)rx_tx_addr[1]<<16)|((uint32_t)rx_tx_addr[2]<<8)|(rx_tx_addr[3]);
 	if(sub_protocol==PELIKAN_LITE && IS_BIND_DONE)
-		A7105_WriteID((rx_tx_addr[0]<<24)|(rx_tx_addr[1]<<16)|(rx_tx_addr[2]<<8)|(rx_tx_addr[3]));
+		A7105_WriteID(MProtocol_id);
 
 	hopping_frequency_no=PELIKAN_NUM_RF_CHAN;
 	packet_count=5;
diff --git a/Multiprotocol/REALACC_nrf24l01.ino b/Multiprotocol/REALACC_nrf24l01.ino
new file mode 100644
index 0000000..eff18e2
--- /dev/null
+++ b/Multiprotocol/REALACC_nrf24l01.ino
@@ -0,0 +1,157 @@
+/*
+ This project is free software: you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation, either version 3 of the License, or
+ (at your option) any later version.
+
+Multiprotocol is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with Multiprotocol.  If not, see <http://www.gnu.org/licenses/>.
+ */
+// Compatible with Realacc R11
+
+#if defined(REALACC_NRF24L01_INO)
+
+#include "iface_nrf24l01.h"
+
+#define FORCE_REALACC_ORIGINAL_ID
+
+#define REALACC_INITIAL_WAIT		500
+#define REALACC_PACKET_PERIOD		2268
+#define REALACC_BIND_RF_CHANNEL		80
+#define REALACC_BIND_PAYLOAD_SIZE	10
+#define REALACC_PAYLOAD_SIZE		13
+#define REALACC_BIND_COUNT			50
+#define REALACC_RF_NUM_CHANNELS		5
+
+static void __attribute__((unused)) REALACC_send_packet()
+{
+	packet[ 0]= 0xDC;
+	packet[ 1]= convert_channel_8b(AILERON);	// 00..80..FF
+	packet[ 2]= convert_channel_8b(ELEVATOR);	// 00..80..FF
+	packet[ 3]= convert_channel_8b(THROTTLE);	// 00..FF
+	packet[ 4]= convert_channel_8b(RUDDER);		// 00..80..FF
+	packet[ 5]= 0x20; 							// Trim
+	packet[ 6]= 0x20; 							// Trim
+	packet[ 7]= 0x20; 							// Trim
+	packet[ 8]= 0x20; 							// Trim
+	packet[ 9]= num_ch;							// Change at each power up
+	packet[10]= 0x04 							// Flag1
+		| 0x02									//   Rate1=0, Rate2=1, Rate3=2
+		| GET_FLAG(CH8_SW, 0x20);				//   Headless
+	packet[11]= 0x00 							// Flag2
+		| GET_FLAG(CH7_SW, 0x01)				//   Calib
+		| GET_FLAG(CH9_SW, 0x20)				//   Return
+		| GET_FLAG(CH10_SW,0x80);				//   Unknown
+	packet[12]= 0x00 							// Flag3
+		| GET_FLAG(CH5_SW, 0x01)				//   Flip
+		| GET_FLAG(CH6_SW, 0x80);				//   Light
+
+	NRF24L01_WriteReg(NRF24L01_05_RF_CH, hopping_frequency_no);
+	hopping_frequency_no++;
+	hopping_frequency_no %= REALACC_RF_NUM_CHANNELS;
+	XN297_WriteEnhancedPayload(packet, REALACC_PAYLOAD_SIZE,0);
+}
+
+static void __attribute__((unused)) REALACC_send_bind_packet()
+{
+	packet[0] = 0xB1;
+	memcpy(&packet[1],rx_tx_addr,4);
+	memcpy(&packet[5],hopping_frequency,5);
+
+	XN297_WriteEnhancedPayload(packet, REALACC_BIND_PAYLOAD_SIZE,1);
+}
+
+static void __attribute__((unused)) REALACC_initialize_txid()
+{
+	calc_fh_channels(REALACC_RF_NUM_CHANNELS);
+	num_ch=random(0xfefefefe);		// 00..FF
+
+	#ifdef FORCE_REALACC_ORIGINAL_ID
+		//Dump
+		rx_tx_addr[0]=0x99;
+		rx_tx_addr[1]=0x06;
+		rx_tx_addr[2]=0x00;
+		rx_tx_addr[3]=0x00;
+		hopping_frequency[0]=0x55;
+		hopping_frequency[1]=0x59;
+		hopping_frequency[2]=0x5A;
+		hopping_frequency[3]=0x5A;
+		hopping_frequency[4]=0x62;
+		num_ch=0xC5;				// Value in dumps: C5 A2 77 F0 84 58
+	#endif
+}
+
+static void __attribute__((unused)) REALACC_init()
+{
+	NRF24L01_Initialize();
+	NRF24L01_SetTxRxMode(TX_EN);
+	NRF24L01_FlushTx();
+	NRF24L01_FlushRx();
+	NRF24L01_WriteReg(NRF24L01_07_STATUS, 0x70);	// Clear data ready, data sent, and retransmit
+	NRF24L01_WriteReg(NRF24L01_01_EN_AA, 0x00);		// No Auto Acknowldgement on all data pipes
+	NRF24L01_WriteReg(NRF24L01_02_EN_RXADDR, 0x01);	// Enable data pipe 0 only
+	NRF24L01_SetBitrate(NRF24L01_BR_1M);			// 1Mbps
+	NRF24L01_SetPower();
+	XN297_SetTXAddr((uint8_t*)"MAIN", 4);
+	NRF24L01_WriteReg(NRF24L01_05_RF_CH, REALACC_BIND_RF_CHANNEL);	// Set bind channel
+}
+
+uint16_t REALACC_callback()
+{
+	#ifdef MULTI_SYNC
+		telemetry_set_input_sync(REALACC_PACKET_PERIOD);
+	#endif
+	XN297_Configure(_BV(NRF24L01_00_EN_CRC) | _BV(NRF24L01_00_CRCO) | _BV(NRF24L01_00_PWR_UP));
+	NRF24L01_WriteReg(NRF24L01_07_STATUS, 0x70);
+	NRF24L01_FlushTx();
+	NRF24L01_SetPower();
+	if(IS_BIND_IN_PROGRESS)
+	{
+		REALACC_send_bind_packet();
+		if(--bind_counter==0)
+		{
+			BIND_DONE;
+			XN297_SetTXAddr(rx_tx_addr, 4);
+		}
+	}
+	else
+		REALACC_send_packet();
+	return REALACC_PACKET_PERIOD;
+}
+
+uint16_t initREALACC()
+{
+	BIND_IN_PROGRESS;	// autobind protocol
+	REALACC_initialize_txid();
+	REALACC_init();
+	bind_counter=REALACC_BIND_COUNT;
+	hopping_frequency_no=0;
+	return REALACC_INITIAL_WAIT;
+}
+
+#endif
+
+// XN297 speed 1Mb, scrambled, enhanced
+// Bind
+//   Address = 4D 41 49 4E = 'MAIN'
+//   Channel = 80 (most likely from dump)
+//   P(10) = B1 99 06 00 00 55 59 5A 5A 62
+//     B1 indicates bind packet
+//     99 06 00 00 = ID = address of normal packets
+//     55 59 5A 5A 62 = 85, 89, 90, 90, 98 = RF channels to be used (kind of match previous dumps)// Normal
+// Normal
+//   Address = 99 06 00 00
+//   Channels = 84, 89, 90, 90, 98 (guess from bind)
+//   P(13)= DC 80 80 32 80 20 20 20 20 58 04 00 00
+//   DC = normal packet
+//   80 80 32 80 : AETR 00..80..FF
+//   20 20 20 20 : Trims
+//   58 : changing every time the TX restart
+//   04 : |0x20=headless, |0x01=rate2, |0x02=rate3
+//   00 : |0x01=calib, |0x20=return, |0x80=unknown
+//   00 : |0x80=light, |0x01=flip
\ No newline at end of file
diff --git a/Multiprotocol/RadioLink_cc2500.ino b/Multiprotocol/RadioLink_cc2500.ino
index 6f3ad5e..9334379 100644
--- a/Multiprotocol/RadioLink_cc2500.ino
+++ b/Multiprotocol/RadioLink_cc2500.ino
@@ -18,11 +18,12 @@
 
 #include "iface_cc2500.h"
 
-#define RLINK_FORCE_ID
+//#define RLINK_FORCE_ID
 
 #define RLINK_TX_PACKET_LEN	33
 #define RLINK_RX_PACKET_LEN	15
 #define RLINK_TX_ID_LEN		4
+#define RLINK_HOP			16
 
 enum {
 	RLINK_DATA	= 0x00,
@@ -30,6 +31,122 @@ enum {
 	RLINK_RX2	= 0x02,
 };
 
+const PROGMEM uint8_t RLINK_hopping[][8] = {
+  /* 4C494E4B */ { 0xBC, 0x5A, 0x70, 0x4E, 0xDF, 0x32, 0x16, 0x89 },
+  /* 4D494E4B */ { 0x4C, 0xF3, 0xEA, 0x5B, 0x62, 0x9D, 0x01, 0x87 },
+  /* 4E494E4B */ { 0x86, 0xEA, 0xD0, 0xC9, 0x2B, 0x53, 0x7F, 0x41 },
+  /* 4F494E4B */ { 0xAC, 0x91, 0x7D, 0x48, 0xE0, 0xB5, 0x32, 0xF6 },
+  /* 50494E4B */ { 0xD6, 0x7C, 0xA4, 0x93, 0x5F, 0xE1, 0x02, 0xB8 },
+  /* 51494E4B */ { 0xED, 0x04, 0x73, 0xC8, 0x56, 0xB9, 0x1F, 0xA2 },
+  /* 52494E4B */ { 0xA7, 0xF0, 0x36, 0xB2, 0x95, 0x4E, 0x1C, 0xD8 },
+  /* 53494E4B */ { 0x76, 0x8B, 0xA0, 0x3E, 0x51, 0x4C, 0x9D, 0x2F },
+  /* 54494E4B */ { 0x07, 0x23, 0x16, 0xFD, 0xC9, 0x5B, 0x84, 0xAE },
+  /* 55494E4B */ { 0xD3, 0xA0, 0x69, 0xBF, 0x12, 0x8C, 0x4E, 0x57 },
+  /* 56494E4B */ { 0xA6, 0xBE, 0x91, 0xD3, 0x7C, 0x4F, 0x82, 0x50 },
+  /* 57494E4B */ { 0x91, 0xDA, 0xBC, 0x75, 0x82, 0x36, 0x4E, 0xF0 },
+  /* 58494E4B */ { 0x9A, 0x27, 0x5C, 0xF4, 0xD8, 0xB0, 0x36, 0xE1 },
+  /* 59494E4B */ { 0x92, 0xF1, 0x34, 0xA7, 0x5B, 0x0C, 0xED, 0x86 },
+  /* 5A494E4B */ { 0x8C, 0x2B, 0x51, 0xF9, 0x3E, 0x4A, 0x67, 0xD0 },
+  /* 5B494E4B */ { 0x5E, 0x3D, 0x67, 0x9B, 0xA2, 0x84, 0xFC, 0x01 },
+  /* 5C494E4B */ { 0xF9, 0x35, 0xBD, 0x78, 0x26, 0x1C, 0x0E, 0xA4 },
+  /* 5D494E4B */ { 0xD9, 0x7B, 0x48, 0x0E, 0x2A, 0xCF, 0x13, 0x65 },
+  /* 5E494E4B */ { 0x07, 0xE4, 0xF9, 0x8A, 0x3C, 0x21, 0xB5, 0xD6 },
+  /* 5F494E4B */ { 0xEB, 0xFA, 0x29, 0xD1, 0x54, 0x3C, 0x07, 0x86 },
+  /* 60494E4B */ { 0xDF, 0xCE, 0x0A, 0x32, 0x71, 0x5B, 0x96, 0x48 },
+  /* 61494E4B */ { 0x19, 0x86, 0xF5, 0x3A, 0x27, 0xDC, 0x0E, 0xB4 },
+  /* 62494E4B */ { 0xF8, 0x47, 0x9C, 0xE0, 0x2D, 0xBA, 0x15, 0x36 },
+  /* 63494E4B */ { 0xED, 0x78, 0x01, 0xA3, 0x2B, 0x6C, 0x45, 0xF9 },
+  /* 64494E4B */ { 0xE0, 0xA2, 0xD4, 0x6B, 0xF5, 0x18, 0x3C, 0x79 },
+  /* 65494E4B */ { 0x26, 0x90, 0x8B, 0x5D, 0x31, 0xCF, 0xE7, 0x4A },
+  /* 66494E4B */ { 0x7B, 0x12, 0xA8, 0x4F, 0xC0, 0x65, 0xD9, 0x3E },
+  /* 67494E4B */ { 0x35, 0xA2, 0x14, 0xBE, 0x06, 0x7D, 0x98, 0xFC },
+  /* 68494E4B */ { 0xD2, 0xA9, 0x7E, 0x40, 0x6F, 0x83, 0x5C, 0xB1 },
+  /* 69494E4B */ { 0xE5, 0xB9, 0xC1, 0x04, 0x83, 0x27, 0xA6, 0xFD },
+  /* 6A494E4B */ { 0x8E, 0x0C, 0x4A, 0x51, 0xFB, 0x63, 0x92, 0x7D },
+  /* 6B494E4B */ { 0xC7, 0x1D, 0x02, 0x93, 0x45, 0xF8, 0xA6, 0xBE },
+  /* 6C494E4B */ { 0xC1, 0x64, 0x59, 0x0A, 0x7D, 0x3F, 0x28, 0xEB },
+  /* 6D494E4B */ { 0xEF, 0x75, 0xAB, 0x94, 0xD2, 0x83, 0x1C, 0x60 },
+  /* 6E494E4B */ { 0xA1, 0x20, 0x54, 0x68, 0x9E, 0x7B, 0x3D, 0xFC },
+  /* 6F494E4B */ { 0x3E, 0x60, 0x28, 0xFC, 0xDA, 0x45, 0x9B, 0x71 },
+  /* 70494E4B */ { 0xB7, 0x0E, 0xA8, 0x23, 0xFC, 0x65, 0x4D, 0x91 },
+  /* 71494E4B */ { 0x29, 0x34, 0x51, 0x7C, 0xB8, 0xFD, 0x0E, 0x6A },
+  /* 72494E4B */ { 0x1B, 0x06, 0x3C, 0x89, 0xF5, 0x2A, 0x7E, 0xD4 },
+  /* 73494E4B */ { 0xF2, 0xC9, 0x63, 0x57, 0x0A, 0xB1, 0x48, 0xDE },
+  /* 74494E4B */ { 0x24, 0xAE, 0x0C, 0x19, 0x53, 0x7B, 0xF6, 0x8D },
+  /* 75494E4B */ { 0xEC, 0xD8, 0xF2, 0x4B, 0xA3, 0x51, 0x09, 0x76 },
+  /* 76494E4B */ { 0x98, 0x71, 0x5E, 0xAD, 0xFC, 0x04, 0x3B, 0x62 },
+  /* 77494E4B */ { 0xAE, 0xF6, 0xB7, 0x01, 0x52, 0x34, 0x9D, 0x8C },
+  /* 78494E4B */ { 0x69, 0x48, 0xF1, 0x3C, 0xDB, 0x0E, 0x25, 0xA7 },
+  /* 79494E4B */ { 0xCF, 0x60, 0x94, 0xAD, 0xB1, 0x82, 0x73, 0xE5 },
+  /* 7A494E4B */ { 0xFA, 0xC1, 0xD7, 0xB0, 0x53, 0x92, 0x6E, 0x48 },
+  /* 7B494E4B */ { 0xAC, 0x7D, 0xE5, 0x8B, 0x41, 0x96, 0x2F, 0x30 },
+  /* 7C494E4B */ { 0xFD, 0xC1, 0xB9, 0x02, 0xE4, 0x87, 0x56, 0x3A },
+  /* 7D494E4B */ { 0x30, 0xDA, 0x4F, 0x8E, 0x5C, 0xB9, 0x26, 0x71 },
+  /* 7E494E4B */ { 0xDC, 0xF9, 0x57, 0x30, 0x82, 0x1E, 0x6A, 0x4B },
+  /* 7F494E4B */ { 0x84, 0x1D, 0x7E, 0x29, 0x3C, 0x65, 0xA0, 0xBF },
+  /* 80494E4B */ { 0x01, 0xA3, 0xF6, 0xE2, 0x4C, 0x8B, 0x5D, 0x79 },
+  /* 81494E4B */ { 0xA1, 0x32, 0xE7, 0x08, 0x4D, 0x5B, 0x9F, 0x6C },
+  /* 82494E4B */ { 0x31, 0x40, 0x67, 0x8F, 0xBA, 0x95, 0x2C, 0xED },
+  /* 83494E4B */ { 0x91, 0x76, 0xFA, 0x83, 0x20, 0x4B, 0xEC, 0x5D },
+  /* 84494E4B */ { 0xDB, 0x54, 0xC2, 0x61, 0xF0, 0xA9, 0x87, 0x3E },
+  /* 85494E4B */ { 0xC0, 0xB4, 0x61, 0xD3, 0x7A, 0x5F, 0x82, 0x9E },
+  /* 86494E4B */ { 0xD6, 0xCF, 0x9B, 0x75, 0xE1, 0x42, 0x3A, 0x80 },
+  /* 87494E4B */ { 0xFE, 0xA2, 0xB4, 0x9C, 0x10, 0x7D, 0x56, 0x83 },
+  /* 88494E4B */ { 0xD2, 0x79, 0x54, 0xEF, 0xC8, 0x0B, 0x36, 0xA1 },
+  /* 89494E4B */ { 0x8D, 0xCF, 0x23, 0x64, 0xE5, 0x0B, 0x1A, 0x97 },
+  /* 8A494E4B */ { 0x07, 0xC4, 0xEF, 0x9A, 0x61, 0xD8, 0xB3, 0x52 },
+  /* 8B494E4B */ { 0x45, 0x6E, 0xBF, 0x8C, 0x9A, 0x2D, 0x31, 0x70 },
+#ifdef RLINK_FORCE_ID
+  /* 3A99223A */ { 0x1F, 0x89, 0x25, 0x06, 0x4E, 0xBD, 0x3A, 0xC7 },
+  /* FC110D20 */ { 0xBC, 0xFE, 0x59, 0x84, 0x37, 0xA1, 0xD0, 0x62 }
+ #endif
+};
+
+static void __attribute__((unused)) RLINK_load_hopp(uint8_t num)
+{
+	uint8_t inc=3*(rx_tx_addr[0]&3);
+	
+	for (uint8_t i = 0; i < RLINK_HOP>>1; i++)
+	{
+		uint8_t val=pgm_read_byte_near(&RLINK_hopping[num][i]);
+		hopping_frequency[ i<<1   ]=12*(val>>4  )+inc;
+		hopping_frequency[(i<<1)+1]=12*(val&0x0F)+inc;
+	}
+
+	// replace one of the channel randomely
+	rf_ch_num=random(0xfefefefe)%0x11;		// 0x00..0x10
+	if(inc==9) inc=6;						// frequency exception
+	hopping_frequency[rf_ch_num]=12*16+inc;
+}
+
+static void __attribute__((unused)) RLINK_init()
+{
+	// channels order depend on ID and currently unknown so using a table of 64 entries...
+	uint8_t id=rx_tx_addr[3]&0x3F;
+	memcpy(rx_tx_addr,"\x4C\x49\x4E\x4B",RLINK_TX_ID_LEN);
+	rx_tx_addr[0] += id;
+	RLINK_load_hopp(id);
+	
+	#ifdef RLINK_FORCE_ID
+		//surface RC6GS
+		memcpy(rx_tx_addr,"\x3A\x99\x22\x3A",RLINK_TX_ID_LEN);
+		RLINK_load_hopp(64);
+		//air T8FB
+		//memcpy(rx_tx_addr,"\xFC\x11\x0D\x20",RLINK_TX_ID_LEN);
+		//RLINK_load_hopp(65);
+	#endif
+
+/* 	debug("ID:");
+	for(uint8_t i=0;i<RLINK_TX_ID_LEN;i++)
+		debug(" 0x%02X",rx_tx_addr[i]);
+	debugln("");
+	debug("Hop(%d):", rf_ch_num);
+	for(uint8_t i=0;i<RLINK_HOP;i++)
+		debug(" 0x%02X",hopping_frequency[i]);
+	debugln("");
+ */
+ }
+
 const PROGMEM uint8_t RLINK_init_values[] = {
   /* 00 */ 0x5B, 0x06, 0x5C, 0x07, 0xAB, 0xCD, 0x40, 0x04,
   /* 08 */ 0x45, 0x00, 0x00, 0x06, 0x00, 0x5C, 0x62, 0x76,
@@ -38,19 +155,6 @@ const PROGMEM uint8_t RLINK_init_values[] = {
   /* 20 */ 0xF8, 0x56, 0x10, 0xA9, 0x0A, 0x00, 0x11
 };
 
-static void __attribute__((unused)) RLINK_init()
-{
-	#ifdef RLINK_FORCE_ID
-		memcpy(rx_tx_addr,"\x3A\x99\x22\x3A",RLINK_TX_ID_LEN);
-	#endif
-
-	// channels order depend on ID and currently unknown...
-	memcpy(hopping_frequency,"\x12\xBA\x66\x72\x1E\x42\x06\x4E\x36\xAE\x8A\xA2\x2A\x7E\x96\x5A",16);	// 1,15,8,9,2,5,0,6,4,14,11,13,3,10,12,7 : end value is value*12+6
-
-	rf_ch_num=(random(0xfefefefe)&0x0F)+1;		// 0x01..0x10
-	hopping_frequency[rf_ch_num]=0xC6;
-}
-
 static void __attribute__((unused)) RLINK_rf_init()
 {
 	CC2500_Strobe(CC2500_SIDLE);
@@ -62,7 +166,6 @@ static void __attribute__((unused)) RLINK_rf_init()
 	CC2500_WriteReg(CC2500_0C_FSCTRL0, option);
 	
 	CC2500_SetTxRxMode(TX_EN);
-	CC2500_SetPower();
 }
 
 static void __attribute__((unused)) RLINK_tune_freq()
@@ -74,7 +177,7 @@ static void __attribute__((unused)) RLINK_tune_freq()
 	}
 }
 
-static void __attribute__((unused)) RLINK_TIMING_RFSEND_packet()
+static void __attribute__((unused)) RLINK_send_packet()
 {
 	static uint32_t pseudo=0;
 	uint32_t bits = 0;
@@ -86,8 +189,16 @@ static void __attribute__((unused)) RLINK_TIMING_RFSEND_packet()
 	// packet length
 	packet[0] = RLINK_TX_PACKET_LEN;
 	// header
-	packet[1] = packet_count>3?0x03:0x01;	// packet type: 0x01 normal, 0x03 request telemetry
-	//if(RX_num) packet[1] |= ((RX_num+2)<<4)+4;	// RX number limited to 10 values, 0 is a wildcard
+	if(sub_protocol)
+		packet[1] = 0x21;					//air 0x21 on dump but it looks to support telemetry at least RSSI
+	else
+	{//surface
+		packet[1] = 0x01;
+		//radiolink additionnal ID which is working only on a small set of RXs
+		//if(RX_num) packet[1] |= ((RX_num+2)<<4)+4;	// RX number limited to 10 values, 0 is a wildcard
+	}
+	if(packet_count>3)
+		packet[1] |= 0x02;					// 0x02 telemetry request flag
 	
 	// ID
 	memcpy(&packet[2],rx_tx_addr,RLINK_TX_ID_LEN);
@@ -117,7 +228,7 @@ static void __attribute__((unused)) RLINK_TIMING_RFSEND_packet()
 	packet[29]= pseudo >> 8;
 	packet[30]= 0x00;						// unknown
 	packet[31]= 0x00;						// unknown
-	packet[32]= rf_ch_num;					// value equal to 0xC6 in the RF table
+	packet[32]= rf_ch_num;					// index of value changed in the RF table
 	
 	// check
 	uint8_t sum=0;
@@ -132,13 +243,14 @@ static void __attribute__((unused)) RLINK_TIMING_RFSEND_packet()
 	packet_count++;
 	if(packet_count>5) packet_count=0;
 
-	//debug("P:");
-	//for(uint8_t i=0;i<RLINK_TX_PACKET_LEN+1;i++)
+	//debugln("C= 0x%02X",hopping_frequency[pseudo & 0x0F]);
+	//debug("P=");
+	//for(uint8_t i=1;i<RLINK_TX_PACKET_LEN+1;i++)
 	//	debug(" 0x%02X",packet[i]);
 	//debugln("");
 }
 
-#define RLINK_TIMING_PROTO	20000
+#define RLINK_TIMING_PROTO	20000-100		// -100 for compatibility with R8EF
 #define RLINK_TIMING_RFSEND	10500
 #define RLINK_TIMING_CHECK	2000
 uint16_t RLINK_callback()
@@ -149,13 +261,15 @@ uint16_t RLINK_callback()
 			#ifdef MULTI_SYNC
 				telemetry_set_input_sync(RLINK_TIMING_PROTO);
 			#endif
+			CC2500_SetPower();
 			RLINK_tune_freq();
-			RLINK_TIMING_RFSEND_packet();
+			RLINK_send_packet();
 #if not defined RLINK_HUB_TELEMETRY
-				return RLINK_TIMING_PROTO;
+			return RLINK_TIMING_PROTO;
 #else
-			if(packet[1]==0x01)
-				return RLINK_TIMING_PROTO;
+			if(!(packet[1]&0x02))
+				return RLINK_TIMING_PROTO;					//Normal packet
+															//Telemetry packet
 			phase++;										// RX1
 			return RLINK_TIMING_RFSEND;
 		case RLINK_RX1:
@@ -183,7 +297,7 @@ uint16_t RLINK_callback()
 						TX_RSSI += 128;
 					RX_RSSI=packet_in[7];					//Should be packet_in[7]-256 but since it's an uint8_t...
 					v_lipo1=packet_in[8]<<1;				//RX Batt
-					v_lipo2=packet_in[9]<<1;				//Batt
+					v_lipo2=packet_in[9];					//Batt
 					telemetry_link=1;						//Send telemetry out
 					pps_counter++;
 					packet_count=0;
@@ -191,10 +305,14 @@ uint16_t RLINK_callback()
 				//debugln("");
 			}
 			if (millis() - pps_timer >= 2000)
-			{//1 packet every 20ms
+			{//1 telemetry packet every 100ms
 				pps_timer = millis();
+				if(pps_counter<20)
+					pps_counter*=5;
+				else
+					pps_counter=100;
 				debugln("%d pps", pps_counter);
-				TX_LQI = pps_counter;						//Max=100%
+				TX_LQI = pps_counter;						//0..100%
 				pps_counter = 0;
 			}
 			CC2500_SetTxRxMode(TX_EN);
diff --git a/Multiprotocol/V761_nrf24l01.ino b/Multiprotocol/V761_nrf24l01.ino
index f29b581..6692caa 100644
--- a/Multiprotocol/V761_nrf24l01.ino
+++ b/Multiprotocol/V761_nrf24l01.ino
@@ -17,12 +17,12 @@ Multiprotocol is distributed in the hope that it will be useful,
 
 #include "iface_nrf24l01.h"
 
+//#define V761_FORCE_ID
+
 #define V761_PACKET_PERIOD		7060 // Timeout for callback in uSec
 #define V761_INITIAL_WAIT		500
 #define V761_PACKET_SIZE		8
 #define V761_BIND_COUNT			200
-
-//Fx chan management
 #define V761_BIND_FREQ			0x28
 #define V761_RF_NUM_CHANNELS	3
 
@@ -143,30 +143,40 @@ static void __attribute__((unused)) V761_init()
 
 static void __attribute__((unused)) V761_initialize_txid()
 {
-	switch(RX_num%5)
-	{
-		case 1:	//Dump from air on Protonus TX
-			memcpy(rx_tx_addr,(uint8_t *)"\xE8\xE4\x45\x09",4);
-			memcpy(hopping_frequency,(uint8_t *)"\x0D\x21",2);
-			break;
-		case 2:	//Dump from air on mshagg2 TX
-			memcpy(rx_tx_addr,(uint8_t *)"\xAE\xD1\x45\x09",4);
-			memcpy(hopping_frequency,(uint8_t *)"\x13\x1D",2);
-			break;
-		case 3:	//Dump from air on MikeHRC Eachine TX
-			memcpy(rx_tx_addr,(uint8_t *)"\x08\x03\x00\xA0",4);		// To be checked
-			memcpy(hopping_frequency,(uint8_t *)"\x0D\x21",2);		// To be checked
-			break;
-		case 4:	//Dump from air on Crashanium Eachine TX
-			memcpy(rx_tx_addr,(uint8_t *)"\x58\x08\x00\xA0",4);		// To be checked
-			memcpy(hopping_frequency,(uint8_t *)"\x0D\x31",3);		// To be checked
-			break;
-		default: //Dump from SPI
-			memcpy(rx_tx_addr,(uint8_t *)"\x6f\x2c\xb1\x93",4);
-			memcpy(hopping_frequency,(uint8_t *)"\x14\x1e",3);
-			break;
-	}
+	#ifdef V761_FORCE_ID
+		switch(RX_num%5)
+		{
+			case 1:	//Dump from air on Protonus TX
+				memcpy(rx_tx_addr,(uint8_t *)"\xE8\xE4\x45\x09",4);
+				memcpy(hopping_frequency,(uint8_t *)"\x0D\x21",2);
+				break;
+			case 2:	//Dump from air on mshagg2 TX
+				memcpy(rx_tx_addr,(uint8_t *)"\xAE\xD1\x45\x09",4);
+				memcpy(hopping_frequency,(uint8_t *)"\x13\x1D",2);
+				break;
+			case 3:	//Dump from air on MikeHRC Eachine TX
+				memcpy(rx_tx_addr,(uint8_t *)"\x08\x03\x00\xA0",4);
+				memcpy(hopping_frequency,(uint8_t *)"\x0D\x21",2);
+				break;
+			case 4:	//Dump from air on Crashanium Eachine TX
+				memcpy(rx_tx_addr,(uint8_t *)"\x58\x08\x00\xA0",4);
+				memcpy(hopping_frequency,(uint8_t *)"\x0D\x31",2);
+				break;
+			default: //Dump from SPI
+				memcpy(rx_tx_addr,(uint8_t *)"\x6f\x2c\xb1\x93",4);
+				memcpy(hopping_frequency,(uint8_t *)"\x14\x1e",2);
+				break;
+		}
+	#else
+		//Tested with Eachine RX
+		rx_tx_addr[0]+=RX_num;
+		hopping_frequency[0]=(rx_tx_addr[0]&0x0F)+0x05;
+		hopping_frequency[1]=hopping_frequency[0]+0x05+(RX_num%0x2D);
+	#endif
+
 	hopping_frequency[2]=hopping_frequency[0]+0x37;
+
+	debugln("ID: %02X %02X %02X %02X , HOP: %02X %02X %02X",rx_tx_addr[0],rx_tx_addr[1],rx_tx_addr[2],rx_tx_addr[3],hopping_frequency[0],hopping_frequency[1],hopping_frequency[2]);
 }
 
 uint16_t V761_callback()
@@ -223,7 +233,11 @@ uint16_t initV761(void)
 		phase = V761_BIND1;
 	}
 	else
+	{
+		XN297_SetTXAddr(rx_tx_addr, 4);
 		phase = V761_DATA;
+	}
+		
 	V761_init();
 	hopping_frequency_no = 0;
 	packet_count = 0;
diff --git a/Multiprotocol/Validate.h b/Multiprotocol/Validate.h
index bb3a9d1..e137401 100644
--- a/Multiprotocol/Validate.h
+++ b/Multiprotocol/Validate.h
@@ -4,10 +4,10 @@
 #endif
 #if not defined (ORANGE_TX) && not defined (STM32_BOARD)
 	//Atmega328p
-	#if not defined(ARDUINO_AVR_PRO) && not defined(ARDUINO_MULTI_NO_BOOT) && not defined(ARDUINO_MULTI_FLASH_FROM_TX) && not defined(ARDUINO_AVR_MINI) && not defined(ARDUINO_AVR_NANO)
+	#if not defined(ARDUINO_AVR_PRO) && not defined(ARDUINO_MULTI_NO_BOOT) && not defined(ARDUINO_MULTI_FLASH_FROM_TX) && not defined(ARDUINO_AVR_MINI) && not defined(ARDUINO_AVR_NANO) && not defined(ARDUINO_AVR_DUEMILANOVE)
 		#error You must select one of these boards: "Multi 4-in-1", "Arduino Pro or Pro Mini" or "Arduino Mini"
 	#endif
-	#if F_CPU != 16000000L || not defined(__AVR_ATmega328P__)
+	#if F_CPU != 16000000L || not (defined(__AVR_ATmega328P__) || defined(__AVR_ATmega168__))
 		#error You must select the processor type "ATmega328(5V, 16MHz)"
 	#endif
 #endif
@@ -109,6 +109,11 @@
 		#error "The REDPINE forced frequency tuning value is outside of the range -127..127."
 	#endif
 #endif
+#ifdef FORCE_RADIOLINK_TUNING
+	#if ( FORCE_RADIOLINK_TUNING < -127 ) || ( FORCE_RADIOLINK_TUNING > 127 )
+		#error "The RADIOLINK forced frequency tuning value is outside of the range -127..127."
+	#endif
+#endif
 #ifdef FORCE_SFHSS_TUNING
 	#if ( FORCE_SFHSS_TUNING < -127 ) || ( FORCE_SFHSS_TUNING > 127 )
 		#error "The SFHSS forced frequency tuning value is outside of the range -127..127."
@@ -135,9 +140,9 @@
 		#error "The Flysky forced frequency tuning value is outside of the range -300..300."
 	#endif
 #endif
-#ifdef FORCE_FLYZONE_TUNING
-	#if ( FORCE_FLYZONE_TUNING < -300 ) || ( FORCE_FLYZONE_TUNING > 300 )
-		#error "The Flyzone forced frequency tuning value is outside of the range -300..300."
+#ifdef FORCE_HEIGHT_TUNING
+	#if ( FORCE_HEIGHT_TUNING < -300 ) || ( FORCE_HEIGHT_TUNING > 300 )
+		#error "The Height forced frequency tuning value is outside of the range -300..300."
 	#endif
 #endif
 #ifdef FORCE_PELIKAN_TUNING
@@ -163,8 +168,8 @@
 	#ifndef FORCE_FLYSKY_TUNING
 		#define FORCE_FLYSKY_TUNING 0
 	#endif
-	#ifndef FORCE_FLYZONE_TUNING
-		#define FORCE_FLYZONE_TUNING 0
+	#ifndef FORCE_HEIGHT_TUNING
+		#define FORCE_HEIGHT_TUNING 0
 	#endif
 	#ifndef FORCE_PELIKAN_TUNING
 		#define FORCE_PELIKAN_TUNING 0
@@ -218,7 +223,7 @@
 	#undef AFHDS2A_RX_A7105_INO
 	#undef BUGS_A7105_INO
 	#undef FLYSKY_A7105_INO
-	#undef FLYZONE_A7105_INO
+	#undef HEIGHT_A7105_INO
 	#undef HUBSAN_A7105_INO
 	#undef KYOSHO_A7105_INO
 	#undef PELIKAN_A7105_INO
@@ -276,10 +281,12 @@
 	#undef	MJXQ_NRF24L01_INO
 	#undef	MT99XX_NRF24L01_INO
 	#undef	NCC1701_NRF24L01_INO
+	#undef	OMP_NRF24L01_INO
 	#undef	POTENSIC_NRF24L01_INO
 	#undef	PROPEL_NRF24L01_INO
 	#undef	Q303_NRF24L01_INO
 	#undef	Q90C_NRF24L01_INO
+	#undef	REALACC_NRF24L01_INO
 	#undef	SHENQI_NRF24L01_INO
 	#undef	SLT_NRF24L01_INO
 	#undef	SYMAX_NRF24L01_INO
diff --git a/Multiprotocol/XN297Dump_nrf24l01.ino b/Multiprotocol/XN297Dump_nrf24l01.ino
index d10cf89..89ebfdb 100644
--- a/Multiprotocol/XN297Dump_nrf24l01.ino
+++ b/Multiprotocol/XN297Dump_nrf24l01.ino
@@ -23,7 +23,7 @@
 
 // Parameters which can be modified
 #define XN297DUMP_PERIOD_SCAN		50000 	// 25000
-#define XN297DUMP_MAX_RF_CHANNEL	84		// Default 84
+#define XN297DUMP_MAX_RF_CHANNEL	127		// Default 84
 
 // Do not touch from there
 #define XN297DUMP_INITIAL_WAIT		500
diff --git a/Multiprotocol/ZSX_nrf24l01.ino b/Multiprotocol/ZSX_nrf24l01.ino
index 23b55a0..454a6cd 100644
--- a/Multiprotocol/ZSX_nrf24l01.ino
+++ b/Multiprotocol/ZSX_nrf24l01.ino
@@ -16,7 +16,7 @@ Multiprotocol is distributed in the hope that it will be useful,
 
 #if defined(ZSX_NRF24L01_INO)
 
-#include "iface_nrf250k.h"
+#include "iface_nrf24l01.h"
 
 //#define FORCE_ZSX_ORIGINAL_ID
 
diff --git a/Multiprotocol/_Config.h b/Multiprotocol/_Config.h
index a118190..9e97a95 100644
--- a/Multiprotocol/_Config.h
+++ b/Multiprotocol/_Config.h
@@ -100,11 +100,12 @@
 //#define FORCE_FRSKYL_TUNING	0
 //#define FORCE_FRSKYV_TUNING	0
 //#define FORCE_FRSKYX_TUNING	0
-//#define FORCE_SFHSS_TUNING	0
-//#define FORCE_SKYARTEC_TUNING	0
 //#define FORCE_HITEC_TUNING	0
 //#define FORCE_HOTT_TUNING		0
+//#define FORCE_RADIOLINK_TUNING	0
 //#define FORCE_REDPINE_TUNING	0
+//#define FORCE_SFHSS_TUNING	0
+//#define FORCE_SKYARTEC_TUNING	0
 
 /** A7105 Fine Frequency Tuning **/
 //This is required in rare cases where some A7105 modules and/or RXs have an inaccurate crystal oscillator.
@@ -117,7 +118,7 @@
 //#define FORCE_AFHDS2A_TUNING	0
 //#define FORCE_BUGS_TUNING		0
 //#define FORCE_FLYSKY_TUNING	0
-//#define FORCE_FLYZONE_TUNING	0
+//#define FORCE_HEIGHT_TUNING	0
 //#define FORCE_HUBSAN_TUNING	0
 //#define FORCE_KYOSHO_TUNING	0
 //#define FORCE_PELIKAN_TUNING	0
@@ -169,7 +170,7 @@
 #define	AFHDS2A_RX_A7105_INO
 #define	BUGS_A7105_INO
 #define	FLYSKY_A7105_INO
-#define	FLYZONE_A7105_INO
+#define	HEIGHT_A7105_INO
 #define	HUBSAN_A7105_INO
 #define KYOSHO_A7105_INO
 #define	PELIKAN_A7105_INO
@@ -226,10 +227,12 @@
 #define	MJXQ_NRF24L01_INO
 #define	MT99XX_NRF24L01_INO
 #define	NCC1701_NRF24L01_INO
+#define	OMP_NRF24L01_INO
 #define	POTENSIC_NRF24L01_INO
 #define	PROPEL_NRF24L01_INO
 #define	Q303_NRF24L01_INO
 #define	Q90C_NRF24L01_INO
+#define	REALACC_NRF24L01_INO
 #define	SHENQI_NRF24L01_INO
 #define	SLT_NRF24L01_INO
 #define	SYMAX_NRF24L01_INO
@@ -579,8 +582,6 @@ const PPM_Parameters PPM_prot[14*NBR_BANKS]=	{
 		V6X6
 		V912
 		CX20
-	PROTO_FLYZONE
-		FZ410
 	PROTO_FQ777
 		NONE
 	PROTO_FRSKY_RX
@@ -634,6 +635,9 @@ const PPM_Parameters PPM_prot[14*NBR_BANKS]=	{
 		H20H
 		H20MINI
 		H30MINI
+	PROTO_HEIGHT
+		HEIGHT_5CH
+		HEIGHT_8CH
 	PROTO_HISKY
 		Hisky
 		HK310
@@ -680,6 +684,8 @@ const PPM_Parameters PPM_prot[14*NBR_BANKS]=	{
 		FY805
 	PROTO_NCC1701
 		NONE
+	PROTO_OMP
+		NONE
 	PROTO_PELIKAN
 		PELIKAN_PRO
 		PELIKAN_LITE
@@ -698,6 +704,8 @@ const PPM_Parameters PPM_prot[14*NBR_BANKS]=	{
 		CX10WD
 	PROTO_Q90C
 		NONE
+	PROTO_REALACC
+		NONE
 	PROTO_REDPINE
 		RED_FAST
 		RED_SLOW
diff --git a/Protocols_Details.md b/Protocols_Details.md
index 830473c..4f5fdda 100644
--- a/Protocols_Details.md
+++ b/Protocols_Details.md
@@ -83,7 +83,6 @@ CFlie|38|CFlie||||||||NRF24L01|
 [Flysky](Protocols_Details.md#FLYSKY---1)|1|Flysky|V9x9|V6x6|V912|CX20||||A7105|
 [Flysky AFHDS2A](Protocols_Details.md#FLYSKY-AFHDS2A---28)|28|PWM_IBUS|PPM_IBUS|PWM_SBUS|PPM_SBUS|PWM_IBUS16|PPM_IBUS16|||A7105|
 [Flysky AFHDS2A RX](Protocols_Details.md#FLYSKY-AFHDS2A-RX---56)|56|RX||||||||A7105|
-[Flyzone](Protocols_Details.md#FLYZONE---53)|53|FZ410||||||||A7105|
 [FQ777](Protocols_Details.md#FQ777---23)|23|FQ777||||||||NRF24L01|SSV7241
 [FrskyD](Protocols_Details.md#FRSKYD---3)|3|D8|Cloned|||||||CC2500|
 [FrskyL](Protocols_Details.md#FRSKYL---67)|67|LR12|LR12 6CH|||||||CC2500|
@@ -94,9 +93,10 @@ CFlie|38|CFlie||||||||NRF24L01|
 [Frsky_RX](Protocols_Details.md#FRSKY_RX---55)|55|RX|CloneTX|||||||CC2500|
 [FX816](Protocols_Details.md#FX816---58)|28|FX816|P38|||||||NRF24L01|
 [FY326](Protocols_Details.md#FY326---20)|20|FY326|FY319|||||||NRF24L01|
-[GD00X](Protocols_Details.md#GD00X---47)|47|GD_V1*|GD_V2*|||||||NRF24L01|
+[GD00X](Protocols_Details.md#GD00X---47)|47|GD_V1*|GD_V2*|||||||NRF24L01|XN297L
 [GW008](Protocols_Details.md#GW008---32)|32|GW008||||||||NRF24L01|XN297
 [H8_3D](Protocols_Details.md#H8_3D---36)|36|H8_3D|H20H|H20Mini|H30Mini|||||NRF24L01|XN297
+[Height](Protocols_Details.md#HEIGHT---53)|53|5ch|8ch|||||||A7105|
 [Hisky](Protocols_Details.md#HISKY---4)|4|Hisky|HK310|||||||NRF24L01|
 [Hitec](Protocols_Details.md#HITEC---39)|39|OPT_FW|OPT_HUB|MINIMA||||||CC2500|
 [Hontai](Protocols_Details.md#HONTAI---26)|26|HONTAI|JJRCX1|X5C1|FQ777_951|||||NRF24L01|XN297
@@ -110,6 +110,7 @@ CFlie|38|CFlie||||||||NRF24L01|
 [MJXq](Protocols_Details.md#MJXQ---18)|18|WLH08|X600|X800|H26D|E010*|H26WH|PHOENIX*||NRF24L01|XN297
 [MT99xx](Protocols_Details.md#MT99XX---17)|17|MT|H7|YZ|LS|FY805||||NRF24L01|XN297
 [NCC1701](Protocols_Details.md#NCC1701---44)|44|NCC1701||||||||NRF24L01|
+[OMP](Protocols_Details.md#OMP---77)|77|||||||||NRF24L01|XN297L
 [OpenLRS](Protocols_Details.md#OpenLRS---27)|27|||||||||None|
 [Pelikan](Protocols_Details.md#Pelikan---60)|60|Pro|Lite|||||||A7105|
 [Potensic](Protocols_Details.md#Potensic---51)|51|A20||||||||NRF24L01|XN297
@@ -117,7 +118,7 @@ CFlie|38|CFlie||||||||NRF24L01|
 [Q2X2](Protocols_Details.md#Q2X2---29)|29|Q222|Q242|Q282||||||NRF24L01|
 [Q303](Protocols_Details.md#Q303---31)|31|Q303|CX35|CX10D|CX10WD|||||NRF24L01|XN297
 [Q90C](Protocols_Details.md#Q90C---72)|72|Q90C*||||||||NRF24L01|XN297
-[RadioLink](Protocols_Details.md#RadioLink---74)|74|Surface||||||||CC2500|
+[RadioLink](Protocols_Details.md#RadioLink---74)|74|Surface|Air|||||||CC2500|
 [Redpine](Protocols_Details.md#Redpine---50)|50|FAST|SLOW|||||||NRF24L01|
 [Scanner](Protocols_Details.md#Scanner---54)|54|||||||||CC2500|
 [SFHSS](Protocols_Details.md#SFHSS---21)|21|SFHSS||||||||CC2500|
@@ -239,12 +240,21 @@ Extended limits supported
 
 Low power: enable/disable the LNA stage on the RF component to use depending on the distance with the TX.
 
-## FLYZONE - *53*
-Models using the Flyzone FZ-410 TX: Fokker D.VII Micro EP RTF. Models using the old ARES TX (prior to Hitec RED) Tiger Moth, eRC Micro Stick and Rage R/C. 
+## HEIGHT - *53*
 
-CH1|CH2|CH3|CH4
----|---|---|---
-A|E|T|R
+### Sub_protocol 5CH - *0*
+Models from Height, Flyzone, Rage R/C, eRC and the old ARES (prior to Hitec RED).
+
+CH1|CH2|CH3|CH4|CH5
+---|---|---|---|---
+A|E|T|R|Gear
+
+### Sub_protocol 8CH - *1*
+Models from Height and Rage R/C. 
+
+CH1|CH2|CH3|CH4|CH5|CH6|CH7|CH8
+---|---|---|---|---|---|---|---
+A|E|T|R|Gear|Gyro|Flap|Light
 
 ## HUBSAN - *2*
 
@@ -548,6 +558,8 @@ You should definitively upgrade your receivers/sensors to the latest firmware ve
 
 Extended limits
 
+**64 IDs available, use RX num to scroll through them**
+
 Option for this protocol corresponds to fine frequency tuning. This value is different for each Module and **must** be accurate otherwise the link will not be stable.
 Check the [Frequency Tuning page](/docs/Frequency_Tuning.md) to determine it.
 
@@ -558,13 +570,16 @@ CH1|CH2|CH3|CH4|CH5|CH6|CH7|CH8|FS_CH1|FS_CH2|FS_CH3|FS_CH4|FS_CH5|FS_CH6|FS_CH7
 FS=FailSafe
 
 ### Sub_protocol Surface - *0*
-Surface protocol. TXs: RC4GS,RC6GS. Compatible RXs:R7FG(Std),R6FG,R6F,R8EF,R8FM,R8F,R4FGM
-
-**Only 1 ID for now**
+Surface protocol. TXs: RC4GS,RC6GS. Compatible RXs:R7FG(Std),R6FG,R6F,R8EF,R8FM,R8F,R4FGM,R4F and more
 
 CH1=Steering, CH2=Throttle, CH8=Gyro gain
 
-Telemetry: RX_RSSI (for the original value add -256), TX_RSSI, TX_QLY (0..100%), A1=RX_Batt, A2=Batt
+Telemetry: RX_RSSI (for the original value add -256), TX_RSSI, TX_QLY (0..100%), A1=RX_Batt, A2=Batt/2 (adjust the ratio)
+
+### Sub_protocol Air - *1*
+Air protocol. TXs: T8FB,T8S. Compatible RXs:R8EF,R8FM,R8SM,R4FG,R4F and more
+
+Telemetry: RX_RSSI (for the original value add -256), TX_RSSI, TX_QLY (0..100%)
 
 ## SFHSS - *21*
 Models: Futaba RXs and XK models.
@@ -1263,6 +1278,21 @@ CH1|CH2|CH3|CH4|CH5
 ---|---|---|---|---
 A|E|T|R|Warp
 
+## OMP - *77*
+Model: OMPHOBBY M2
+
+This protocol is known to be problematic because it's using the xn297L emulation with a transmission speed of 250kbps therefore it doesn't work very well with every modules, this is an hardware issue with the accuracy of the components.
+
+If the model does not respond well to inputs or hard to bind, you can try to switch the emulation from the default NRF24L01 RF component to the CC2500 by using an option value (freq tuning) different from 0. Option in this case is used for fine frequency tuning like any CC2500 protocols so check the [Frequency Tuning page](/docs/Frequency_Tuning.md).
+
+CH1|CH2|CH3|CH4|CH5|CH6|CH7
+---|---|---|---|---|---|---
+A|E|T|R|HOLD|IDLE|MODE
+
+IDLE= 3 pos switch: -100% Idle0, 0% Idle1, +100% Idle2
+
+MODE= 3 pos switch -100% Attitude, 0% Attitude, +100% 3D 
+
 ## Potensic - *51*
 Model: Potensic A20
 
@@ -1510,8 +1540,6 @@ A|E|T|R|FLIP|LIGHT
 
 ## V761 - *48*
 
-Warning: **Only 5 IDs**, you can cycle through them using RX_Num.
-
 Gyro: -100%=Beginer mode (Gyro on, yaw and pitch rate limited), 0%=Mid Mode ( Gyro on no rate limits), +100%=Mode Expert Gyro off
 Calib: momentary switch, calib will happen one the channel goes from -100% to +100%
 Flip: momentary switch: hold flip(+100%), indicate flip direction with Ele or Ail, release flip(-100%)