diff --git a/site_ansto/instrument/reflectometer/config/hmm/hmm_configuration.tcl b/site_ansto/instrument/reflectometer/config/hmm/hmm_configuration.tcl
index 5de69c51..747c6986 100644
--- a/site_ansto/instrument/reflectometer/config/hmm/hmm_configuration.tcl
+++ b/site_ansto/instrument/reflectometer/config/hmm/hmm_configuration.tcl
@@ -18,7 +18,8 @@ proc ::histogram_memory::init_OAT_TABLE {} {
     hmm configure fat_frame_frequency $freq
     hmm configure fat_frame_source EXTERNAL
 
-      OAT_TABLE -set X { -210.5 -209.5 } NXC 421 Y { -110.5 -109.5 } NYC 221 T { 0 40 } NTC 1000
+#      OAT_TABLE -set X { -210.5 -209.5 } NXC 421 Y { -110.5 -109.5 } NYC 221 T { 0 40 } NTC 1000
+      OAT_TABLE -set X { 56.5 -56.5 } NXC 1 Y { 110.5 109.5 } NYC 221 T { 0 40 } NTC 1000
   } message ] {
     if {$::errorCode=="NONE"} {return $message}
     return -code error $message