+extern struct db_base db_rfx_900_tx;
+extern struct db_base db_rfx_900_rx;
+extern struct db_base db_rfx_1200_tx;
+extern struct db_base db_rfx_1200_rx;
+extern struct db_base db_rfx_1800_tx;
+extern struct db_base db_rfx_1800_rx;
+extern struct db_base db_rfx_2400_tx;
+extern struct db_base db_rfx_2400_rx;