HackRF - final check-in. Changed all tuners to use the low-level API of the usb4java library to resolve limitation in high-level API that constrains maximum sample rate to ~2.0 MHz. Added console logging to logback.

config/logback.xml

@@ -12,9 +12,19 @@
       <pattern>%-25(%d{ddMMyyyy HHmmss} [%thread]) %-5level %logger{30} - %msg%n</pattern>
     </encoder>
   </appender>
-        
+
   <root level="DEBUG">
     <appender-ref ref="FILE" />
   </root>
-  
+
+  <appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
+    <encoder>
+      <pattern>%-16(%d{HH:mm:ss.SSS} [%thread]) %-5level %logger{30} - %msg%n</pattern>
+    </encoder>
+  </appender>
+          
+  <root level="DEBUG">
+    <appender-ref ref="STDOUT" />
+  </root>
+
 </configuration>