diff -Naur linux-3.7.2/drivers/media/dvb-frontends/stb0899_drv.c linux-3.7.2.patch/drivers/media/dvb-frontends/stb0899_drv.c
--- linux-3.7.2/drivers/media/dvb-frontends/stb0899_drv.c	2013-01-11 18:19:28.000000000 +0100
+++ linux-3.7.2.patch/drivers/media/dvb-frontends/stb0899_drv.c	2013-01-16 10:33:10.323380937 +0100
@@ -971,6 +971,16 @@
 
 				*strength = stb0899_table_lookup(stb0899_dvbsrf_tab, ARRAY_SIZE(stb0899_dvbsrf_tab) - 1, val);
 				*strength += 750;
+
+		            	const int MIN_STRENGTH_DVBS = 0;
+		            	const int MAX_STRENGTH_DVBS = 680;
+		            	if (*strength < MIN_STRENGTH_DVBS) 	
+		                	*strength = 0;
+		            	else if(*strength > MAX_STRENGTH_DVBS) 
+		                	*strength = 0xFFFF;
+		            	else
+				    	*strength = (*strength - MIN_STRENGTH_DVBS) * 0xFFFF / (MAX_STRENGTH_DVBS - MIN_STRENGTH_DVBS); 
+
 				dprintk(state->verbose, FE_DEBUG, 1, "AGCIQVALUE = 0x%02x, C = %d * 0.1 dBm",
 					val & 0xff, *strength);
 			}
@@ -983,6 +993,7 @@
 
 			*strength = stb0899_table_lookup(stb0899_dvbs2rf_tab, ARRAY_SIZE(stb0899_dvbs2rf_tab) - 1, val);
 			*strength += 950;
+			*strength = *strength << 4;
 			dprintk(state->verbose, FE_DEBUG, 1, "IF_AGC_GAIN = 0x%04x, C = %d * 0.1 dBm",
 				val & 0x3fff, *strength);
 		}
@@ -1016,6 +1027,16 @@
 				val = MAKEWORD16(buf[0], buf[1]);
 
 				*snr = stb0899_table_lookup(stb0899_cn_tab, ARRAY_SIZE(stb0899_cn_tab) - 1, val);
+
+		            	const int MIN_SNR_DVBS = 0;
+		            	const int MAX_SNR_DVBS = 200;
+		            	if (*snr < MIN_SNR_DVBS) 	
+		                	*snr = 0;
+		            	else if(*snr > MAX_SNR_DVBS) 
+		                	*snr = 0xFFFF;
+		            	else
+				    	*snr = (*snr - MIN_SNR_DVBS) * 0xFFFF / (MAX_SNR_DVBS - MIN_SNR_DVBS);
+
 				dprintk(state->verbose, FE_DEBUG, 1, "NIR = 0x%02x%02x = %u, C/N = %d * 0.1 dBm\n",
 					buf[0], buf[1], val, *snr);
 			}
@@ -1040,6 +1061,16 @@
 				val = (quantn - estn) / 10;
 			}
 			*snr = val;
+
+	        	const int MIN_SNR_DVBS2 = 10;
+	        	const int MAX_SNR_DVBS2 = 70;
+	        	if (*snr < MIN_SNR_DVBS2) 	
+		            	*snr = 0;
+	        	else if(*snr > MAX_SNR_DVBS2) 
+        		    	*snr = 0xFFFF;
+        		else
+				*snr = (*snr - MIN_SNR_DVBS2) * 0xFFFF / (MAX_SNR_DVBS2 - MIN_SNR_DVBS2); 
+
 			dprintk(state->verbose, FE_DEBUG, 1, "Es/N0 quant = %d (%d) estimate = %u (%d), C/N = %d * 0.1 dBm",
 				quant, quantn, est, estn, val);
 		}