diff --git a/devices/SDP.py b/devices/SDP.py
index 7db55b341b5a7a86bcef2b0e9f04a44639ad7d4b..6df8dec72cc803e3ecb155e54716521b30e62480 100644
--- a/devices/SDP.py
+++ b/devices/SDP.py
@@ -64,6 +64,8 @@ class SDP(hardware_device):
     # ----------
     # Attributes
     # ----------
+    # SDP will switch from fpga_mask_RW to tr_fpga_mask_RW, offer both for now as its a critical flag
+    tr_fpga_mask_RW = attribute_wrapper(comms_annotation=["1:tr_fpga_mask_RW"], datatype=numpy.bool_, dims=(16,), access=AttrWriteType.READ_WRITE)
     fpga_mask_RW = attribute_wrapper(comms_annotation=["1:fpga_mask_RW"], datatype=numpy.bool_, dims=(16,), access=AttrWriteType.READ_WRITE)
     fpga_scrap_R = attribute_wrapper(comms_annotation=["1:fpga_scrap_R"], datatype=numpy.int32, dims=(2048,))
     fpga_scrap_RW = attribute_wrapper(comms_annotation=["1:fpga_scrap_RW"], datatype=numpy.int32, dims=(2048,), access=AttrWriteType.READ_WRITE)
@@ -86,8 +88,10 @@ class SDP(hardware_device):
     fpga_sdp_info_station_id_R = attribute_wrapper(comms_annotation=["1:fpga_sdp_info_station_id_R"], datatype=numpy.uint16, dims=(16,)) 
     fpga_sdp_info_observation_id_RW = attribute_wrapper(comms_annotation=["1:fpga_sdp_info_observation_id_RW"], datatype=numpy.uint32, dims=(16,), access=AttrWriteType.READ_WRITE)
     fpga_sdp_info_observation_id_R = attribute_wrapper(comms_annotation=["1:fpga_sdp_info_observation_id_R"], datatype=numpy.uint32, dims=(16,))
-    fpga_sdp_info_source_id_RW = attribute_wrapper(comms_annotation=["1:fpga_sdp_info_source_id_RW"], datatype=numpy.uint16, dims=(16,), access=AttrWriteType.READ_WRITE)
-    fpga_sdp_info_source_id_R = attribute_wrapper(comms_annotation=["1:fpga_sdp_info_source_id_R"], datatype=numpy.uint16, dims=(16,))
+    fpga_sdp_info_nyquist_sampling_zone_index_RW = attribute_wrapper(comms_annotation=["1:fpga_sdp_info_nyquist_sampling_zone_index_RW"], datatype=numpy.uint16, dims=(16,), access=AttrWriteType.READ_WRITE)
+    fpga_sdp_info_nyquist_sampling_zone_index_R = attribute_wrapper(comms_annotation=["1:fpga_sdp_info_nyquist_sampling_zone_index_R"], datatype=numpy.uint16, dims=(16,))
+    fpga_sdp_info_subband_calibrated_flag_R = attribute_wrapper(comms_annotation=["1:fpga_sdp_info_subband_calibrated_flag_R"], datatype=numpy.uint16, dims=(16,)) 
+    fpga_sdp_info_beamlet_scale_R = attribute_wrapper(comms_annotation=["1:fpga_sdp_info_beamlet_scale_R"], datatype=numpy.uint16, dims=(16,)) 
 
     tr_busy_R = attribute_wrapper(comms_annotation=["1:tr_busy_R"], datatype=numpy.bool_)
     # NOTE: typo in node name is 'tr_reload_W' should be 'tr_reload_RW'