Adjusted costas loop gain values. Updated channel filter values to mitigate adjacent channel interference.

src/main/java/io/github/dsheirer/dsp/filter/channelizer/PolyphaseChannelSource.java

@@ -148,12 +148,6 @@ public class PolyphaseChannelSource extends TunerChannelSource
             //Register to receive buffer overflow notifications so we can push them up through the source chain
             mPolyphaseChannelOutputProcessor.setSourceOverflowListener(this);
 
-            //Fully process the residual channel results buffer of the previous channel output processor
-            if(existingProcessor != null)
-            {
-                existingProcessor.processChannelResults(mReusableComplexBufferAssembler);
-            }
-
             //Finally, setup the frequency offset for the output processor.
             mIndexCenterFrequency = mReplacementFrequency;
             mPolyphaseChannelOutputProcessor.setFrequencyOffset(getFrequencyOffset());

src/main/java/io/github/dsheirer/dsp/psk/pll/PLLGain.java

@@ -23,8 +23,8 @@ public enum PLLGain
     //NOTE: static gain level of 200 produced the best results for releases prior to 0.3.4b2
 
     LEVEL_1(150.0, 0, 1),
-    LEVEL_2(175.0, 2, 4),
-    LEVEL_3(200.0, 5, 6),
+    LEVEL_2(170.0, 2, 4),
+    LEVEL_3(190.0, 5, 6),
     LEVEL_4(200.0, 7, 8),
     LEVEL_5(200.0, 9, 10);
 

src/main/java/io/github/dsheirer/module/decode/p25/DecodeConfigP25Phase1.java

@@ -113,7 +113,6 @@ public class DecodeConfigP25Phase1 extends DecodeConfiguration
     @Override
     public ChannelSpecification getChannelSpecification()
     {
-        return new ChannelSpecification(50000.0,
-            12500, 6000.0, 7000.0);
+        return new ChannelSpecification(50000.0, 12500, 5750.0, 6500.0);
     }
 }