diff --git a/src/main/java/io/github/dsheirer/alias/id/radio/RadioFormat.java b/src/main/java/io/github/dsheirer/alias/id/radio/RadioFormat.java
index 3127f895..af347f96 100644
--- a/src/main/java/io/github/dsheirer/alias/id/radio/RadioFormat.java
+++ b/src/main/java/io/github/dsheirer/alias/id/radio/RadioFormat.java
@@ -1,7 +1,7 @@
 /*
  *
  *  * ******************************************************************************
- *  * Copyright (C) 2014-2019 Dennis Sheirer
+ *  * Copyright (C) 2014-2020 Dennis Sheirer
  *  *
  *  * This program is free software: you can redistribute it and/or modify
  *  * it under the terms of the GNU General Public License as published by
@@ -34,8 +34,8 @@ import io.github.dsheirer.protocol.Protocol;
  */
 public enum RadioFormat
 {
-    APCO25("********", 1, 0xFFFFFF, "1 to 16,777,215",
-        "<html>APCO25 valid range is 1 to 16,777,215"),
+    APCO25("********", 0, 0xFFFFFF, "0 to 16,777,215",
+        "<html>APCO25 valid range is 0 to 16,777,215"),
     UNKNOWN("********", 1, 0xFFFFFF, "1 to 16,777,215",
         "Unknown protocol valid value range is 1-16,777,215");
 
diff --git a/src/main/java/io/github/dsheirer/alias/id/talkgroup/TalkgroupFormat.java b/src/main/java/io/github/dsheirer/alias/id/talkgroup/TalkgroupFormat.java
index e904cf00..236a35e3 100644
--- a/src/main/java/io/github/dsheirer/alias/id/talkgroup/TalkgroupFormat.java
+++ b/src/main/java/io/github/dsheirer/alias/id/talkgroup/TalkgroupFormat.java
@@ -1,21 +1,23 @@
 /*
- * ******************************************************************************
- * sdrtrunk
- * Copyright (C) 2014-2019 Dennis Sheirer
  *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
+ *  * ******************************************************************************
+ *  * Copyright (C) 2014-2020 Dennis Sheirer
+ *  *
+ *  * This program is free software: you can redistribute it and/or modify
+ *  * it under the terms of the GNU General Public License as published by
+ *  * the Free Software Foundation, either version 3 of the License, or
+ *  * (at your option) any later version.
+ *  *
+ *  * This program is distributed in the hope that it will be useful,
+ *  * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  * GNU General Public License for more details.
+ *  *
+ *  * You should have received a copy of the GNU General Public License
+ *  * along with this program.  If not, see <http://www.gnu.org/licenses/>
+ *  * *****************************************************************************
  *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
  *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>
- * *****************************************************************************
  */
 
 package io.github.dsheirer.alias.id.talkgroup;
@@ -32,8 +34,8 @@ import io.github.dsheirer.protocol.Protocol;
  */
 public enum TalkgroupFormat
 {
-    APCO25("********", 1, 0xFFFFFF, "1 to 16,777,215",
-        "<html>APCO25 valid range is 1 to 65,535(talkgroup)<br>or 1 to 16,777,215 (radio ID)"),
+    APCO25("********", 0, 0xFFFFFF, "0 to 65,535",
+        "<html>APCO25 talkgroup valid range is 0 to 65,535"),
     FLEETSYNC("###-####", 1, 0x7FFFFF, "001-0001 to 127-8192",
         "<html>Fleetsync valid ranges are 1-127(prefix)<br>and 1-8192(ident) (ie. 001-0001 to 127-8192)"),
     LTR("##-###", 257, 5375, "01-001 to 20-255",