diff --git a/master/master/config.h b/master/master/config.h
--- a/master/master/config.h
+++ b/master/master/config.h
@@ -120,7 +120,7 @@
 #define APRS_COMMENT    "CU HAB TEST"
 
 // Transmit the APRS sentence every X milliseconds
-#define APRS_TRANSMIT_PERIOD 30000
+#define APRS_TRANSMIT_PERIOD 20000
 
 
 // --------------------------------------------------------------------------