diff --git a/applications/lofar2/libraries/sdp/src/vhdl/node_sdp_beamformer.vhd b/applications/lofar2/libraries/sdp/src/vhdl/node_sdp_beamformer.vhd
index c82f450ad9525890f4a7ba21931f133b48df1123..e2152de22a0945173436b14f78c2fa14ce80c6ea 100644
--- a/applications/lofar2/libraries/sdp/src/vhdl/node_sdp_beamformer.vhd
+++ b/applications/lofar2/libraries/sdp/src/vhdl/node_sdp_beamformer.vhd
@@ -310,8 +310,9 @@ BEGIN
     udp_src_port => stat_udp_src_port,
     ip_src_addr  => stat_ip_src_addr,
 
+    gn_index     => TO_UINT(gn_id),
     sdp_info     => sdp_info,
-    gn_index     => TO_UINT(gn_id)
+    weighted_subbands_flag => '1'  -- because BF uses in_sosi_arr = fsub_sosi_arr, so weighted subbands
   );
 
   ---------------------------------------------------------------
diff --git a/applications/lofar2/libraries/sdp/src/vhdl/node_sdp_correlator.vhd b/applications/lofar2/libraries/sdp/src/vhdl/node_sdp_correlator.vhd
index 03f715308242a93f66576406a97ecc7148d20e3d..f692703f72bcf96bb91798e4ff646ed22dd3187c 100644
--- a/applications/lofar2/libraries/sdp/src/vhdl/node_sdp_correlator.vhd
+++ b/applications/lofar2/libraries/sdp/src/vhdl/node_sdp_correlator.vhd
@@ -468,6 +468,7 @@ BEGIN
     gn_index       => TO_UINT(gn_id),
     ring_info      => ring_info,
     sdp_info       => sdp_info,
+    weighted_subbands_flag  => '1',  -- because XSub uses in_sosi_arr = fsub_sosi_arr, so weighted subbands
     nof_crosslets  => nof_crosslets,
     crosslets_info => crosslets_info
   );
diff --git a/applications/lofar2/libraries/sdp/src/vhdl/sdp_station.vhd b/applications/lofar2/libraries/sdp/src/vhdl/sdp_station.vhd
index 36ab5c31f894559bb67b51e2e29f1c5e8afdc804..8aaa60d406cc6577d8731eebc9361dfd0613958e 100644
--- a/applications/lofar2/libraries/sdp/src/vhdl/sdp_station.vhd
+++ b/applications/lofar2/libraries/sdp/src/vhdl/sdp_station.vhd
@@ -403,8 +403,8 @@ ARCHITECTURE str OF sdp_station IS
   ----------------------------------------------
 
   SIGNAL ait_sosi_arr                      : t_dp_sosi_arr(c_sdp_S_pn-1 DOWNTO 0);         
-  SIGNAL pfb_sosi_arr                      : t_dp_sosi_arr(c_sdp_P_pfb-1 DOWNTO 0);         
-  SIGNAL fsub_sosi_arr                     : t_dp_sosi_arr(c_sdp_P_pfb-1 DOWNTO 0);        
+  SIGNAL pfb_sosi_arr                      : t_dp_sosi_arr(c_sdp_P_pfb-1 DOWNTO 0);  -- raw subbands
+  SIGNAL fsub_sosi_arr                     : t_dp_sosi_arr(c_sdp_P_pfb-1 DOWNTO 0);  -- weighted subbands
   SIGNAL bs_sosi                           : t_dp_sosi;        
  
   SIGNAL xst_from_ri_sosi                  : t_dp_sosi;        
diff --git a/doc/erko_howto_tools.txt b/doc/erko_howto_tools.txt
index 331c88ad51e35af98694cc004c3bb75a84cc4a16..4146bec45c38f9d6b98fb7bbdf4bb8d3183ffb00 100755
--- a/doc/erko_howto_tools.txt
+++ b/doc/erko_howto_tools.txt
@@ -835,6 +835,8 @@ Works from home in VPN:
 * LTS --> http://test-lcu2.astron.nl:8888/notebooks/   # = dop81
 * DTS --> http://dts-lcu.astron.nl:8888/notebooks/
 
+Check of SDPTR op dop369 actief is met:
+> uals -u 10.87.2.36:4840 -p "0:Objects"
 
 *******************************************************************************
 * Zenodo DOI