diff --git a/datalink814_ge/src/linklayer/net_scan.c b/datalink814_ge/src/linklayer/net_scan.c
index edafb9f..513b9e0 100644
--- a/datalink814_ge/src/linklayer/net_scan.c
+++ b/datalink814_ge/src/linklayer/net_scan.c
@@ -27,11 +27,6 @@
 #include "../bit_array/bit_macros.h"
 
 /************************** Constant Definitions *****************************/
-#define INIT_BEAM_NO 0
-#define BEAM_PER_ANT 37
-#define INIT_ANT_NO 0
-#define ANT_NUM 6
-
 #define BM_LSTEN_TIMEOUT 40
 
 #define SQUENCE_SCAN_SLOTS 0