diff --git a/tests/rftest-rx.c b/tests/rftest-rx.c
index 99e8cd9ef..ec1e6c231 100644
--- a/tests/rftest-rx.c
+++ b/tests/rftest-rx.c
@@ -59,7 +59,7 @@ void main(void) {
 	set_power(0x0f); /* 0dbm */
 	set_channel(0); /* channel 11 */
 
-        *MACA_CONTROL = SMAC_MACA_CNTL_INIT_STATE;
+	*MACA_CONTROL = (1 << PRM) | (NO_CCA << MODE);
 	for(i=0; i<DELAY; i++) { continue; }
 
 	*MACA_DMARX = (uint32_t)data; /* put data somewhere */
diff --git a/tests/rftest-tx.c b/tests/rftest-tx.c
index 6b16a265a..4a7557548 100644
--- a/tests/rftest-tx.c
+++ b/tests/rftest-tx.c
@@ -78,7 +78,7 @@ void main(void) {
 	set_power(0x0f); /* 0dbm */
 	set_channel(0); /* channel 11 */
 
-        *MACA_CONTROL = SMAC_MACA_CNTL_INIT_STATE;
+	*MACA_CONTROL = (1 << PRM) | (NO_CCA << MODE);
 	for(i=0; i<DELAY; i++) { continue; }
 
 	data = (void *)DATA;