diff --git a/bts/BTS_Tests.ttcn b/bts/BTS_Tests.ttcn
index 68c85fb..35f51a1 100644
--- a/bts/BTS_Tests.ttcn
+++ b/bts/BTS_Tests.ttcn
@@ -65,6 +65,7 @@
 	integer mp_timing_offset_256syms_exp := 512;
 	/* Time to wait for RSL conn from BTS during startup of test */
 	float mp_ipa_up_timeout := 15.0;
+	float mp_ipa_up_delay := 3.0;
 }
 
 type record of RslChannelNr ChannelNrs;
@@ -364,6 +365,10 @@
 		f_main_trxc_connect();
 		ret := f_TRXC_transceive(BTS_TRXC, g_bts_trxc_conn_id, valueof(ts_TRXC_FAKE_TIMING(2*256)));
 	}
+
+	/* Wait some extra time to make sure the BTS emits a stable carrier.
+	 * (this is only relevant when running the tests with a physical BTS.) */
+	f_sleep(mp_ipa_up_delay);
 }
 
 /* Attach L1CTL to master test_CT (classic tests, non-handler mode) */