diff --git a/host/lib/usrp/b200/b200_impl.cpp b/host/lib/usrp/b200/b200_impl.cpp
index 6de161e87..432af5784 100644
--- a/host/lib/usrp/b200/b200_impl.cpp
+++ b/host/lib/usrp/b200/b200_impl.cpp
@@ -1410,10 +1410,10 @@ void b200_impl::update_atrs(void)
         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) {
         radio_perifs_t& perif = _radio_perifs[_fe2];
@@ -1431,10 +1431,10 @@ void b200_impl::update_atrs(void)
         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));
     }
 }