diff --git a/base_station/src/main.c b/base_station/src/main.c
index 6da3528..b61debb 100644
--- a/base_station/src/main.c
+++ b/base_station/src/main.c
@@ -11,8 +11,6 @@
 #include "debug.h"
 #endif /* DEBUG */
 
-volatile uint8_t conn_lost;
-
 int main(void)
 {
     uint8_t *rx_raw;
@@ -50,7 +48,7 @@ int main(void)
             nrf24_getData(rx_raw);
             memcpy(rx_data, rx_raw, sizeof(data_packet_t));
 
-            if (rx_data->distance < 10)
+            if (rx_data->distance < 10 && rx_data->distance >= 0)
                 SET(LED_PORT, LED_BLUE_BIT);
             else
                 CLR(LED_PORT, LED_BLUE_BIT);
@@ -59,8 +57,6 @@ int main(void)
                 SET(LED_PORT, LED_GREEN_BIT);
             else
                 CLR(LED_PORT, LED_GREEN_BIT);
-
-            conn_lost = 0;
         }
     }
 
@@ -71,14 +67,3 @@ int main(void)
 
     return 0;
 }
-
-ISR(TIMER1_OVF_vect)
-{
-    // Node hasn't responded for a while, turn off all signal LEDs
-    if (conn_lost == 1) {
-        CLR(LED_PORT, LED_GREEN_BIT);
-        CLR(LED_PORT, LED_BLUE_BIT);
-    }
-
-    conn_lost = 1;
-}