antenna switch, sound volume control, improved spectral scan

align.h

@@ -0,0 +1 @@
+void align(uint32_t);

align.ino

@@ -0,0 +1,43 @@
+void align(uint32_t freq)
+{
+    // alignment of the antenna circuit
+    // these values are individual for each tuner!
+
+    if(freq>=107300)
+        DAA = 52;
+    else if(freq>=104500)
+        DAA = 53;
+    else if(freq>=100400)
+        DAA = 54;
+    else if(freq>=97500)
+        DAA = 55;
+    else if(freq>=95600)
+        DAA = 56;
+    else if(freq>=92900)
+        DAA = 57;
+    else if(freq>=90500)
+        DAA = 58;
+    else if(freq>=87800)
+        DAA = 59;
+    else if(freq>=87000)
+        DAA = 60;
+    else if(freq>=85000)
+        DAA = 61;
+    else if(freq>=84000)
+        DAA = 62;
+    else if(freq>=83000)
+        DAA = 63;
+    else if(freq>=78000)
+        DAA = 64;
+    else if(freq>=76000)
+        DAA = 65;
+    else if(freq>=74000)
+        DAA = 66;
+    else if(freq>=73000)
+        DAA = 67;
+    else if(freq>=70000)
+        DAA = 69;
+    else
+        DAA = 70;
+}
+

xdr_f1hd.h

@@ -5,6 +5,7 @@
 
 #define DSP_FM_LEVEL             0x030092
 #define DSP_AM_LEVEL             0x03006E
+#define DSP_VOLUME_SCALER        0x031011
 #define DSP_ST_19kHz             0x03102C
 #define DSP_DEEMPHASIS           0x0311D7
 
@@ -514,7 +515,7 @@ const uint8_t DSP_FM[] PROGMEM =
     6,0x01,0x0F,0xF5,0xE2,0x76,0x28,
     6,0x05,0x0F,0xF5,0xE2,0x50,0x8D,
     6,0x05,0x0F,0xF9,0x00,0x00,0x17,
-    5,0x03,0x10,0x11,0x06,0x5A,
+//    5,0x03,0x10,0x11,0x06,0x5A,
     5,0x00,0x00,0x34,0x30,0x20, // RDS sync mode - max 2 bits error correctable blocks are handled as vaild
     5,0x00,0x00,0x35,0x00,0x60, // RDS fast pi mode & reset sync
     0
@@ -541,7 +542,7 @@ const uint8_t DSP_AM[] PROGMEM =
     6,0x01,0x0F,0xF5,0xE2,0x76,0x28,
     6,0x05,0x0F,0xF5,0xE2,0x75,0xC1,
     5,0x03,0x11,0x27,0x0F,0xEC,
-    5,0x03,0x10,0x11,0x07,0x21,
+//    5,0x03,0x10,0x11,0x07,0x21,
     0
 };