diff --git a/stid_readers/core.py b/stid_readers/core.py
index bf2e914..e2f5ebb 100644
--- a/stid_readers/core.py
+++ b/stid_readers/core.py
@@ -28,7 +28,7 @@
 
 
 from _exceptions import MalformedDataError, BadParameterException
-from utils import get_integer_on_two_bytes
+from utils import get_integer_on_two_bytes, hex_to_int
 
 
 def get_rfsettings(response):
@@ -44,10 +44,10 @@ def get_rfsettings(response):
     logic_ports = list()
     for i in range(0, 16):
         logic_port = dict()
-        logic_port['ScanDelay'] = int(response.raw_data[i * 4:(i * 4) + 2]
-            .encode('hex'), 16) * 10  # 0 ms ≤ ScanDelay ≤ 655350 ms ()
-        power_ant_nb = int(response.raw_data[(i * 4) + 2:(i * 4) + 4]
-            .encode('hex'), 16)
+        # 0 ms ≤ ScanDelay ≤ 655350 ms ()
+        logic_port['ScanDelay'] = \
+            hex_to_int(response.raw_data[i * 4:(i * 4) + 2]) * 10
+        power_ant_nb = hex_to_int(response.raw_data[(i * 4) + 2:(i * 4) + 4])
         logic_port['AntNb'] = power_ant_nb & 0x000f
         logic_port['PowerAnt'] = (power_ant_nb >> 4) / 10
             #[0E6h ≤ PowerAnt ≤ 136h] soit [23 dBm ≤ PowerAnt ≤ 31 dBm] (URF)
@@ -92,16 +92,22 @@ def get_healthparameters(response):
 
         Return a dict of values.
     '''
+    def antenna_quality(value):
+        if value <= 100:
+            return 0
+        elif value > 160:
+            return 2
+        else:
+            return 1
     if not response.raw_data:
         raise MalformedDataError('Data content is malformed.')
     if len(response.raw_data) != 6:
         raise MalformedDataError('Data content is malformed.')
-    health_parameters = dict()
-    health_parameters['Tune0'] = int(response.raw_data[0].encode('hex'), 16)
-    health_parameters['Tune1'] = int(response.raw_data[1].encode('hex'), 16)
-    health_parameters['Tune2'] = int(response.raw_data[2].encode('hex'), 16)
-    health_parameters['Tune3'] = int(response.raw_data[3].encode('hex'), 16)
-    health_parameters['TempCore'] = int(response.raw_data[4].encode('hex'), 16)
-    health_parameters['PA'] = int(response.raw_data[5].encode('hex'), 16)
-    print health_parameters
+    health_parameters = {
+        'Tune{}'.format(i): (hex_to_int(response.raw_data[i]),
+            antenna_quality(hex_to_int(response.raw_data[i])))
+                for i in range(4)
+    }
+    health_parameters['TempCore'] = hex_to_int(response.raw_data[4])
+    health_parameters['PA'] = hex_to_int(response.raw_data[5])
     response.data = health_parameters