diff --git a/host/lib/usrp/b200/b200_impl.cpp b/host/lib/usrp/b200/b200_impl.cpp
index 1be8c263b..f64546914 100644
--- a/host/lib/usrp/b200/b200_impl.cpp
+++ b/host/lib/usrp/b200/b200_impl.cpp
@@ -1269,10 +1269,10 @@ void b200_impl::update_atrs(void)
         if (enb_rx and not enb_tx) fd = rxonly;
         if (not enb_rx and enb_tx) fd = txonly;
         gpio_atr_3000::sptr atr = perif.atr;
-        atr->set_atr_reg(ATR_REG_IDLE, STATE_OFF);
-        atr->set_atr_reg(ATR_REG_RX_ONLY, rxonly);
-        atr->set_atr_reg(ATR_REG_TX_ONLY, txonly);
-        atr->set_atr_reg(ATR_REG_FULL_DUPLEX, fd);
+        atr->set_atr_reg(ATR_REG_IDLE, STATE_OFF | (1<<7));
+        atr->set_atr_reg(ATR_REG_RX_ONLY, rxonly | (1<<7));
+        atr->set_atr_reg(ATR_REG_TX_ONLY, txonly | (1<<7));
+        atr->set_atr_reg(ATR_REG_FULL_DUPLEX, fd | (1<<7));
     }
     if (_radio_perifs.size() > _fe2 and _radio_perifs[_fe2].atr)
     {
@@ -1287,10 +1287,10 @@ void b200_impl::update_atrs(void)
         if (enb_rx and not enb_tx) fd = rxonly;
         if (not enb_rx and enb_tx) fd = txonly;
         gpio_atr_3000::sptr atr = perif.atr;
-        atr->set_atr_reg(ATR_REG_IDLE, STATE_OFF);
-        atr->set_atr_reg(ATR_REG_RX_ONLY, rxonly);
-        atr->set_atr_reg(ATR_REG_TX_ONLY, txonly);
-        atr->set_atr_reg(ATR_REG_FULL_DUPLEX, fd);
+        atr->set_atr_reg(ATR_REG_IDLE, STATE_OFF | (1<<7));
+        atr->set_atr_reg(ATR_REG_RX_ONLY, rxonly | (1<<7));
+        atr->set_atr_reg(ATR_REG_TX_ONLY, txonly | (1<<7));
+        atr->set_atr_reg(ATR_REG_FULL_DUPLEX, fd | (1<<7));
     }
 }