diff --git a/apps/grgsm_trx b/apps/grgsm_trx
index eafc726..eb7fbdb 100755
--- a/apps/grgsm_trx
+++ b/apps/grgsm_trx
@@ -40,7 +40,7 @@
 class Application:
 	# Application variables
 	remote_addr = "127.0.0.1"
-	base_port = 5700
+	base_port = 6700
 
 	# PHY specific
 	phy_sample_rate = 4 * 1625000 / 6