1 files changed, 10 insertions, 2 deletions
diff --git a/altoslib/AltosFrequency.java b/altoslib/AltosFrequency.java
index 7c6ffe61..9542fe33 100644
--- a/altoslib/AltosFrequency.java
+++ b/altoslib/AltosFrequency.java
@@ -15,9 +15,13 @@
  * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
  */
 
-package org.altusmetrum.altoslib_9;
+package org.altusmetrum.altoslib_10;
 
-public class AltosFrequency {
+import java.io.*;
+import java.util.*;
+import java.text.*;
+
+public class AltosFrequency implements Serializable {
 	public double	frequency;
 	public String	description;
 
@@ -44,6 +48,10 @@ public class AltosFrequency {
 				     frequency, description);
 	}
 
+	public String frequency_string() {
+		return String.format("%7.3f", frequency);
+	}
+
 	public boolean close(double f) {
 		double	diff = Math.abs(frequency - f);