diff --git a/include/sstv.h b/include/sstv.h
index 36728ed..9095ce8 100644
--- a/include/sstv.h
+++ b/include/sstv.h
@@ -14,8 +14,8 @@
 #define FREQ_BIT0 1300
 #define FREQ_START 1900
 #define FREQ_BLACK 1500
-#define FREQ_WHITE 7500
+#define FREQ_WHITE 4000
 #define FREQ_RANGE FREQ_WHITE - FREQ_BLACK
-#define COLOR_SCALE 256
+#define COLOR_SCALE 64
 
 uint8_t decode_sstv();
diff --git a/src/adc.c b/src/adc.c
index 16dbb8c..931573f 100644
--- a/src/adc.c
+++ b/src/adc.c
@@ -10,7 +10,7 @@ void ADC0_Init() {
     PORTE->PCR[21] |= PORT_PCR_MUX(0x0);
 
     ADC0->CFG1 = ADC_CFG1_ADLSMP_MASK      // Sample time 0 = Short, 1 = Long
-                 | ADC_CFG1_MODE(0x01);    // Conversion mode 00 = 8-bit, 01 = 12-bit, 10 = 10-bit, 11 = 16-bit
+                 | ADC_CFG1_MODE(0b01);    // Conversion mode 00 = 8-bit, 01 = 12-bit, 10 = 10-bit, 11 = 16-bit
     ADC0->SC3 = ADC_SC3_ADCO_MASK          // Continuous Conversion if AVGE = 1
                 | ADC_SC3_AVGE_MASK        // Hardware average
                 | ADC_SC3_AVGS(0x01);      // Hardware average 00 = 4 samples, 01 = 8, 10 = 16, 11 = 32