apps/trx: wait until transceiver actually stop
diff --git a/apps/trx/ctrl_if_bb.py b/apps/trx/ctrl_if_bb.py
index 8f7b57a..90d6740 100644
--- a/apps/trx/ctrl_if_bb.py
+++ b/apps/trx/ctrl_if_bb.py
@@ -65,6 +65,7 @@
 				print("[i] Stopping transceiver...")
 				self.tb.trx_started = False
 				self.tb.stop()
+				self.tb.wait()
 
 			return 0