diff --git a/src/emu/video/fixfreq.c b/src/emu/video/fixfreq.c
index f43d77c5c51..0f1808b548a 100644
--- a/src/emu/video/fixfreq.c
+++ b/src/emu/video/fixfreq.c
@@ -45,7 +45,8 @@ fixedfreq_device::fixedfreq_device(const machine_config &mconfig, device_type ty
 		m_vsync(492),
 		m_vbackporch(525),
 		m_fieldcount(2),
-		m_sync_threshold(0.3)
+		m_sync_threshold(0.3),
+		m_gain(1.0 / 3.7)
 {
 }
 
@@ -63,7 +64,8 @@ fixedfreq_device::fixedfreq_device(const machine_config &mconfig, const char *ta
 		m_vsync(492),
 		m_vbackporch(525),
 		m_fieldcount(2),
-		m_sync_threshold(0.3)
+		m_sync_threshold(0.3),
+		m_gain(1.0 / 3.7)
 {
 }
 
@@ -247,10 +249,11 @@ NETDEV_ANALOG_CALLBACK_MEMBER(fixedfreq_device::update_vid)
 		rgb_t col;
 
 		if (m_vid < m_sync_threshold)
+			// Mark sync areas
 			col = rgb_t(255, 0, 0);
 		else
 		{
-			int colv = (int) ((m_vid - m_sync_threshold) / 3.7 * 255.0);
+			int colv = (int) ((m_vid - m_sync_threshold) * m_gain * 255.0);
 			if (colv > 255)
 				colv = 255;
 			col = rgb_t(colv, colv, colv);
@@ -272,6 +275,7 @@ NETDEV_ANALOG_CALLBACK_MEMBER(fixedfreq_device::update_vid)
 	if (sync & 2)
 	{
 		VERBOSE_OUT(("HSYNC up %d\n", pixels));
+		//if (m_last_y == 27) printf("HSYNC up %d %d\n", m_last_y, pixels);
 	}
 	if (sync & 4)
 	{
@@ -287,7 +291,8 @@ NETDEV_ANALOG_CALLBACK_MEMBER(fixedfreq_device::update_vid)
 		m_last_vsync_time = time;
 	}
 
-	if ((sync & 2) && !m_sig_vsync)
+	// FIXME: pixels > 50 filters some spurious hysnc on line 27 in breakout
+	if ((sync & 2) && !m_sig_vsync && (pixels > 50))
 	{
 		m_last_y += m_fieldcount;
 		m_last_x = 0;
diff --git a/src/emu/video/fixfreq.h b/src/emu/video/fixfreq.h
index fa9703cd2b4..37fef7871bb 100644
--- a/src/emu/video/fixfreq.h
+++ b/src/emu/video/fixfreq.h
@@ -40,6 +40,9 @@
 #define MCFG_FIXFREQ_SYNC_THRESHOLD(_threshold) \
 	fixedfreq_device::set_threshold(*device, _threshold);
 
+#define MCFG_FIXFREQ_GAIN(_gain) \
+	fixedfreq_device::set_gain(*device, _gain);
+
 // pre-defined configurations
 
 //ModeLine "720x480@30i" 13.5 720 736 799 858 480 486 492 525 interlace -hsync -vsync
@@ -73,6 +76,7 @@ public:
 	static void set_minitor_clock(device_t &device, UINT32 clock) { downcast<fixedfreq_device &>(device).m_monitor_clock = clock; }
 	static void set_fieldcount(device_t &device, int count) { downcast<fixedfreq_device &>(device).m_fieldcount = count; }
 	static void set_threshold(device_t &device, double threshold) { downcast<fixedfreq_device &>(device).m_sync_threshold = threshold; }
+	static void set_gain(device_t &device, double gain) { downcast<fixedfreq_device &>(device).m_gain = gain; }
 	static void set_horz_params(device_t &device, int visible, int frontporch, int sync, int backporch)
 	{
 		fixedfreq_device &dev = downcast<fixedfreq_device &>(device);
@@ -135,6 +139,7 @@ private:
 	int m_vbackporch;
 	int m_fieldcount;
 	double m_sync_threshold;
+	double m_gain;
 
 	/* sync separator */
 	double m_vint;