diff --git a/CDB/stations/DTS_Outside_ConfigDb.json b/CDB/stations/DTS_Outside_ConfigDb.json
index c45f204de2bfebedb212e6dc0d2b9f15bcdd48e0..96b58936feb2ca06b0f84a6c099603a968f84496 100644
--- a/CDB/stations/DTS_Outside_ConfigDb.json
+++ b/CDB/stations/DTS_Outside_ConfigDb.json
@@ -156,11 +156,11 @@
                                 "STAT/RECV/1"
                             ],
                             "Antenna_Names": [
-                                "C0","C0",
-                                "C1","C1",
-                                "C2","C2",
-                                "C3","C3",
-                                "C4","C4"
+                                "C0",
+                                "C1",
+                                "C2",
+                                "C3",
+                                "C4"
                             ],
                             "HBAT_Control_to_RECV_mapping": [
                                 "1","27",
@@ -177,26 +177,14 @@
                                 "1","26"
                             ],
                             "Antenna_Field_Reference_ETRS": [
-                                "3839371.416",
-                                "430339.901",
-                                "5057958.886"
+                                "3839371.416","430339.901","5057958.886"
                             ],
                             "HBAT_reference_ETRS": [
-                                "3839371.416",
-                                "430339.901",
-                                "5057958.886",
-                                "3839368.919",
-                                "430335.979",
-                                "5057961.1",
-                                "3839365.645",
-                                "430339.299",
-                                "5057963.288",
-                                "3839368.142",
-                                "430343.221",
-                                "5057961.074",
-                                "3839374.094",
-                                "430299.513",
-                                "5057960.017"
+                                "3839371.416","430339.901","5057958.886",
+                                "3839368.919","430335.979","5057961.1",
+                                "3839365.645","430339.299","5057963.288",
+                                "3839368.142","430343.221","5057961.074",
+                                "3839374.094","430299.513","5057960.017"
                             ],
                             "HBAT_PQR_rotation_angles_deg": [
                                 "45.73",
@@ -206,15 +194,9 @@
                                 "54.40"
                             ],
                             "HBAT_PQR_to_ETRS_rotation_matrix": [
-                                "-0.11660087",
-                                "-0.79095632",
-                                "0.60065992",
-                                " 0.99317077",
-                                "-0.09529842",
-                                "0.06730545",
-                                " 0.00400627",
-                                " 0.60440575",
-                                "0.79666658"
+                                "-0.11660087","-0.79095632","0.60065992",
+                                " 0.99317077","-0.09529842","0.06730545",
+                                " 0.00400627"," 0.60440575","0.79666658"
                             ]
                         }
                     },
@@ -224,15 +206,15 @@
                                 "STAT/RECV/1"
                             ],
                             "Antenna_Names": [
-                                "LBA1","LBA1",
-                                "LBA2","LBA2",
-                                "LBA3","LBA3",
-                                "LBA4","LBA4",
-                                "LBA5","LBA5",
-                                "LBA6","LBA6",
-                                "LBA7","LBA7",
-                                "LBA8","LBA8",
-                                "LBA9","LBA9"
+                                "LBA1",
+                                "LBA2",
+                                "LBA3",
+                                "LBA4",
+                                "LBA5",
+                                "LBA6",
+                                "LBA7",
+                                "LBA8",
+                                "LBA9"
                             ],
                             "HBAT_Control_to_RECV_mapping": [
                                 "1","1",
@@ -262,33 +244,15 @@
                                 "5057967.804"
                             ],
                             "HBAT_reference_ETRS": [
-                                "3839358.189",
-                                "430354.482",
-                                "5057967.804",
-                                "3839359.127",
-                                "430348.074",
-                                "5057967.607",
-                                "3839360.084",
-                                "430341.872",
-                                "5057967.379",
-                                "3839361.024",
-                                "430335.466",
-                                "5057967.180",
-                                "3839361.721",
-                                "430329.482",
-                                "5057967.130",
-                                "3839362.786",
-                                "430323.311",
-                                "5057966.818",
-                                "3839363.705",
-                                "430317.204",
-                                "5057966.611",
-                                "3839364.563",
-                                "430311.056",
-                                "5057966.454",
-                                "3839365.497",
-                                "430304.996",
-                                "5057966.232"
+                                "3839358.189","430354.482","5057967.804",
+                                "3839359.127","430348.074","5057967.607",
+                                "3839360.084","430341.872","5057967.379",
+                                "3839361.024","430335.466","5057967.180",
+                                "3839361.721","430329.482","5057967.130",
+                                "3839362.786","430323.311","5057966.818",
+                                "3839363.705","430317.204","5057966.611",
+                                "3839364.563","430311.056","5057966.454",
+                                "3839365.497","430304.996","5057966.232"
                             ]
                         }
                     }
diff --git a/tangostationcontrol/tangostationcontrol/devices/antennafield.py b/tangostationcontrol/tangostationcontrol/devices/antennafield.py
index 10f6ea71e7ddd86c3890d9ea12e1fc6c16002e2a..c7d43b9226de469e877cf6bfdc4c728a8afcfd0e 100644
--- a/tangostationcontrol/tangostationcontrol/devices/antennafield.py
+++ b/tangostationcontrol/tangostationcontrol/devices/antennafield.py
@@ -204,7 +204,7 @@ class AntennaField(lofar_device):
     )
 
     Antenna_Names_R = attribute(access=AttrWriteType.READ,
-        dtype=(numpy.str,), max_dim_x=MAX_NUMBER_OF_HBAT)
+        dtype=(str,), max_dim_x=MAX_NUMBER_OF_HBAT)
     Antenna_Quality_R = attribute(access=AttrWriteType.READ,
         dtype=(numpy.uint16,), max_dim_x=MAX_NUMBER_OF_HBAT)
     Antenna_Use_R = attribute(access=AttrWriteType.READ,