diff --git a/tangostationcontrol/tangostationcontrol/devices/sdp/digitalbeam.py b/tangostationcontrol/tangostationcontrol/devices/sdp/digitalbeam.py
index f33b7c6df9c3c12d16a75cf36248cb50bf18e2d6..b2649529340f16e2038068fad9a5135b998439f7 100644
--- a/tangostationcontrol/tangostationcontrol/devices/sdp/digitalbeam.py
+++ b/tangostationcontrol/tangostationcontrol/devices/sdp/digitalbeam.py
@@ -43,10 +43,6 @@ class DigitalBeam(beam_device):
         disabled in the mask will get a weight of 0.
     """
 
-
-    # number of antennas connected to each FPGA in SDP
-    A_pn = 6
-
     # -----------------
     # Device Properties
     # -----------------