diff --git a/slsDetectorServers/ctbDetectorServer/slsDetectorServer_defs.h b/slsDetectorServers/ctbDetectorServer/slsDetectorServer_defs.h
index cc51c54ae..45ec6148a 100755
--- a/slsDetectorServers/ctbDetectorServer/slsDetectorServer_defs.h
+++ b/slsDetectorServers/ctbDetectorServer/slsDetectorServer_defs.h
@@ -59,9 +59,9 @@ enum DACINDEX               {D0, D1, D2, D3, D4, D5, D6, D7, D8, D9,
 #define DEFAULT_VLIMIT              (-100)
 #define DEFAULT_TIMING_MODE			(AUTO_TIMING)
 #define DEFAULT_TX_UDP_PORT			(0x7e9a)
-#define DEFAULT_RUN_CLK             (40)
-#define DEFAULT_ADC_CLK             (20)
-#define DEFAULT_SYNC_CLK            (20)
+#define DEFAULT_RUN_CLK             (200) // 40
+#define DEFAULT_ADC_CLK             (40) // 20
+#define DEFAULT_SYNC_CLK            (40) // 20
 #define DEFAULT_DBIT_CLK            (200)
 
 #define HIGHVOLTAGE_MIN             (60)
diff --git a/slsReceiverSoftware/include/GeneralData.h b/slsReceiverSoftware/include/GeneralData.h
index 87ad410d0..6a7801b81 100755
--- a/slsReceiverSoftware/include/GeneralData.h
+++ b/slsReceiverSoftware/include/GeneralData.h
@@ -120,18 +120,13 @@ public:
 	 * Get Header Infomation (frame number, packet number)
 	 * @param index thread index for debugging purposes
 	 * @param packetData pointer to data
-	 * @param dynamicRange dynamic range to assign subframenumber if 32 bit mode
 	 * @param oddStartingPacket odd starting packet (gotthard)
 	 * @param frameNumber frame number
 	 * @param packetNumber packet number
-	 * @param subFrameNumber sub frame number if applicable
-	 * @param bunchId bunch id
 	 */
-	virtual void GetHeaderInfo(int index, char* packetData, uint32_t dynamicRange, bool oddStartingPacket,
-			uint64_t& frameNumber, uint32_t& packetNumber, uint32_t& subFrameNumber, uint64_t& bunchId) const
+	virtual void GetHeaderInfo(int index, char* packetData, bool oddStartingPacket,
+			uint64_t& frameNumber, uint32_t& packetNumber) const
 	{
-		subFrameNumber = -1;
-		bunchId = -1;
 		frameNumber = ((uint32_t)(*((uint32_t*)(packetData))));
 		frameNumber++;
 		packetNumber = frameNumber&packetIndexMask;
@@ -280,27 +275,20 @@ private:
 	 * Get Header Infomation (frame number, packet number)
 	 * @param index thread index for debugging purposes
 	 * @param packetData pointer to data
-	 * @param dynamicRange dynamic range to assign subframenumber if 32 bit mode
 	 * @param oddStartingPacket odd starting packet (gotthard)
 	 * @param frameNumber frame number
 	 * @param packetNumber packet number
-	 * @param subFrameNumber sub frame number if applicable
-	 * @param bunchId bunch id
 	 */
-	void GetHeaderInfo(int index, char* packetData, uint32_t dynamicRange, bool oddStartingPacket,
-			uint64_t& frameNumber, uint32_t& packetNumber, uint32_t& subFrameNumber, uint64_t& bunchId) const
+	void GetHeaderInfo(int index, char* packetData, bool oddStartingPacket,
+			uint64_t& frameNumber, uint32_t& packetNumber) const
 	{
 		if (nPixelsX == 1280) {
-			subFrameNumber = -1;
-			bunchId = -1;
 			frameNumber = *reinterpret_cast<uint32_t*>(packetData);
 			if (oddStartingPacket)
 			    frameNumber++;
 			packetNumber = frameNumber&packetIndexMask;
 			frameNumber = (frameNumber & frameIndexMask) >> frameIndexOffset;
 		} else  {
-			subFrameNumber = -1;
-			bunchId = -1;
             frameNumber = *reinterpret_cast<uint32_t *>(packetData);
             packetNumber = 0;
 		}
@@ -555,6 +543,9 @@ private:
 	const int NCHAN_DIGITAL = 64;
 	/** Number of bytes per analog channel */
 	const int NUM_BYTES_PER_ANALOG_CHANNEL = 2;
+
+	const int FRAME_NUMBER_OFFSET = 6;
+	const int PACKET_NUMBER_OFFSET = 6 + 8;
 public:
 
 
@@ -619,12 +610,20 @@ public:
         nPixelsY = 1;
         // 10G
         if (t) {
+			/*
             headerSizeinPacket = sizeof(slsDetectorDefs::sls_detector_header);
             dataSize = UDP_PACKET_DATA_BYTES;
 			packetSize = headerSizeinPacket + dataSize;
             imageSize = adatabytes + ddatabytes;
             packetsPerFrame = ceil((double)imageSize / (double)dataSize);
             standardheader = true;	    
+			*/
+			headerSizeinPacket = 22;
+			dataSize = 8192;
+			packetSize = headerSizeinPacket + dataSize;
+			imageSize = adatabytes + ddatabytes;
+			packetsPerFrame	= ceil((double)imageSize / (double)dataSize);
+			standardheader = false;
 		}
 	    // 1g udp (via fifo readout)
 	    else {
@@ -638,6 +637,21 @@ public:
 		return adatabytes;
 	}
 
+	/**
+	 * Get Header Infomation (frame number, packet number)
+	 * @param index thread index for debugging purposes
+	 * @param packetData pointer to data
+	 * @param oddStartingPacket odd starting packet (gotthard)
+	 * @param frameNumber frame number
+	 * @param packetNumber packet number
+	 */
+	void GetHeaderInfo(int index, char* packetData, bool oddStartingPacket,
+			uint64_t& frameNumber, uint32_t& packetNumber) const
+	{
+		frameNumber = *reinterpret_cast<uint64_t*>(packetData + FRAME_NUMBER_OFFSET);
+		packetNumber = *reinterpret_cast<uint64_t*>(packetData + PACKET_NUMBER_OFFSET);
+	}
+
 };
 
 
diff --git a/slsReceiverSoftware/src/Listener.cpp b/slsReceiverSoftware/src/Listener.cpp
index 4ffccbd32..628398034 100755
--- a/slsReceiverSoftware/src/Listener.cpp
+++ b/slsReceiverSoftware/src/Listener.cpp
@@ -348,8 +348,8 @@ void Listener::StopListening(char* buf) {
 uint32_t Listener::ListenToAnImage(char* buf) {
 
 	int rc = 0;
-	uint64_t fnum = 0, bid = 0;
-	uint32_t pnum = 0, snum = 0;
+	uint64_t fnum = 0;
+	uint32_t pnum = 0;
 	uint32_t numpackets = 0;
 	uint32_t dsize = generalData->dataSize;
 	uint32_t hsize = generalData->headerSizeinPacket; //(includes empty header)
@@ -402,8 +402,7 @@ uint32_t Listener::ListenToAnImage(char* buf) {
 		}
 		// -------------------old header -----------------------------------------------------------------------------
 		else {
-			generalData->GetHeaderInfo(index, &carryOverPacket[0],
-					*dynamicRange, oddStartingPacket, fnum, pnum, snum, bid);
+			generalData->GetHeaderInfo(index, &carryOverPacket[0], oddStartingPacket, fnum, pnum);
 		}
 		//------------------------------------------------------------------------------------------------------------
 		if (fnum != currentFrameIndex) {
@@ -525,8 +524,7 @@ uint32_t Listener::ListenToAnImage(char* buf) {
                 oddStartingPacket = generalData->SetOddStartingPacket(index, &listeningPacket[0]);
             }
 
-			generalData->GetHeaderInfo(index, &listeningPacket[0],
-					*dynamicRange, oddStartingPacket, fnum, pnum, snum, bid);
+			generalData->GetHeaderInfo(index, &listeningPacket[0], oddStartingPacket, fnum, pnum);
 		}
 		//------------------------------------------------------------------------------------------------------------
 
diff --git a/slsSupportLib/include/versionAPI.h b/slsSupportLib/include/versionAPI.h
index 15b93541f..d17c29908 100644
--- a/slsSupportLib/include/versionAPI.h
+++ b/slsSupportLib/include/versionAPI.h
@@ -7,4 +7,4 @@
 #define APIGUI 0x190723
 #define APIJUNGFRAU 0x190730
 #define APIEIGER 0x190806
-#define APICTB 0x190819
+#define APICTB 0x190820