diff --git a/applications/apertif/designs/apertif_unb1_correlator/src/vhdl/apertif_unb1_correlator.vhd b/applications/apertif/designs/apertif_unb1_correlator/src/vhdl/apertif_unb1_correlator.vhd
index 6e1f0fa7255cc8269aa670cf04bfedafe9cf5aed..6e4c58f85d3e3ec4adc0b15ea2628ad294a0cfa9 100644
--- a/applications/apertif/designs/apertif_unb1_correlator/src/vhdl/apertif_unb1_correlator.vhd
+++ b/applications/apertif/designs/apertif_unb1_correlator/src/vhdl/apertif_unb1_correlator.vhd
@@ -140,7 +140,7 @@ ARCHITECTURE str OF apertif_unb1_correlator IS
   
   -- BSN Alignern + FIFO's
   CONSTANT c_block_period           : NATURAL := 186; --256; --FIXME: first block size was 176/256. Now 128/186,18 (non-integer...), assuming 186 is OK.
-  CONSTANT c_block_size             : NATURAL := 128; --176
+  CONSTANT c_block_size             : NATURAL := 176; --128
   CONSTANT c_bsn_align_latency      : NATURAL := 3;
   CONSTANT c_bsn_align_sop_timeout  : NATURAL := (c_bsn_align_latency + 1) * c_block_period;  -- wait somewhat more than c_bsn_align_latency periods
   CONSTANT c_bsn_align_xoff_timeout : NATURAL :=  c_bsn_align_latency * 2  * c_block_period;  -- flush factor 2 longer than needed
@@ -653,8 +653,8 @@ BEGIN
   dp_bsn_monitor_in_sosi_arr(3) <= correlator_src_out_arr(0);
   dp_bsn_monitor_in_siso_arr(3) <= c_dp_siso_rdy;
   --      3) Monitor the correlator output / visibility offload input  
-  dp_bsn_monitor_in_sosi_arr(4) <= dp_offload_tx_src_out_arr(0);
-  dp_bsn_monitor_in_siso_arr(4) <= dp_offload_tx_src_in_arr(0);
+--  dp_bsn_monitor_in_sosi_arr(4) <= dp_offload_tx_src_out_arr(0);
+--  dp_bsn_monitor_in_siso_arr(4) <= dp_offload_tx_src_in_arr(0);
 
   -----------------------------------------------------------------------------
   -- RX: Data buffers