diff --git a/src/main/java/io/github/dsheirer/controller/channel/ChannelProcessingManager.java b/src/main/java/io/github/dsheirer/controller/channel/ChannelProcessingManager.java
index 449548e6..c090b36e 100644
--- a/src/main/java/io/github/dsheirer/controller/channel/ChannelProcessingManager.java
+++ b/src/main/java/io/github/dsheirer/controller/channel/ChannelProcessingManager.java
@@ -365,7 +365,7 @@ public class ChannelProcessingManager implements Listener<ChannelEvent>
      * @param request containing channel and other details
      * @throws ChannelException if a source is not available for the channel
      */
-    private void startProcessing(ChannelStartProcessingRequest request) throws ChannelException
+    private synchronized void startProcessing(ChannelStartProcessingRequest request) throws ChannelException
     {
         Channel channel = request.getChannel();
 
diff --git a/src/main/java/io/github/dsheirer/source/tuner/rtl/r8x/R8xEmbeddedTuner.java b/src/main/java/io/github/dsheirer/source/tuner/rtl/r8x/R8xEmbeddedTuner.java
index b13a4e82..2ff44cf7 100644
--- a/src/main/java/io/github/dsheirer/source/tuner/rtl/r8x/R8xEmbeddedTuner.java
+++ b/src/main/java/io/github/dsheirer/source/tuner/rtl/r8x/R8xEmbeddedTuner.java
@@ -236,7 +236,6 @@ public abstract class R8xEmbeddedTuner extends EmbeddedTuner
         writeRegister(Register.DIVIDER, (byte) (div_num << 5), controlI2C);
         /* Get the integral number for this divider and frequency */
         Integral integral = divider.getIntegral(frequency);
-        System.out.println("Using divider [" + divider + "] integral [" + integral + "] for [" + frequency + "]");
         writeRegister(Register.PLL, integral.getRegisterValue(), controlI2C);
         /* Calculate the sigma-delta modulator fractional setting.  If it's non-zero, power up the sdm and apply the
         fractional setting, otherwise turn it off */