Re-adjusted RX front end gains above 226.4MHz

app/app.c

@@ -541,17 +541,33 @@ void APP_StartListening(FUNCTION_Type_t Function)
 			// MIXER ......   0dB
 			// PGA ........ -15dB
 			//                                  LNA SHORT     LNA         MIXER        PGA
-			uint8_t pga = 6u;
+			{
-			if (rx_frequency < 22640000)  //     seem to need more gain above this frequency
+				uint16_t lna_short;
-				pga = 3u;
+				uint16_t lna;
-			else
+				uint16_t mixer;
-				pga = 6u;
+				uint16_t pga;
+				if (rx_frequency < 22640000)  //     seem to need more gain above this frequency
+				{
+					lna_short = 3;   // original
+					lna       = 2;   // original
+					mixer     = 3;   // original
+					pga       = 3;   // reduced
+				}
+				else
+				{
+					lna_short = 3;   // original
+					lna       = 3;   // increased
+					mixer     = 3;   // original
+				//	pga       = 6;   // original
+					pga       = 7;   // increased
+				}
 	
-			BK4819_WriteRegister(BK4819_REG_13, (3u << 8) | (2u << 5) | (3u << 3) | (pga << 0));
+				BK4819_WriteRegister(BK4819_REG_13, (lna_short << 8) | (lna << 5) | (mixer << 3) | (pga << 0));
-			//BK4819_WriteRegister(BK4819_REG_12, 0x037B);  // 000000 11 011 11 011
+				//BK4819_WriteRegister(BK4819_REG_12, 0x037B);  // 000000 11 011 11 011
-			//BK4819_WriteRegister(BK4819_REG_11, 0x027B);  // 000000 10 011 11 011
+				//BK4819_WriteRegister(BK4819_REG_11, 0x027B);  // 000000 10 011 11 011
-			//BK4819_WriteRegister(BK4819_REG_10, 0x007A);  // 000000 00 011 11 010
+				//BK4819_WriteRegister(BK4819_REG_10, 0x007A);  // 000000 00 011 11 010
-			//BK4819_WriteRegister(BK4819_REG_14, 0x0019);  // 000000 00 000 11 001
+				//BK4819_WriteRegister(BK4819_REG_14, 0x0019);  // 000000 00 000 11 001
+			}
 			
 			gNeverUsed = 0;
 		}