diff --git a/lib/ldpc/jtmode_codes/ldpc-128-82-sf11.gen b/lib/ldpc/jtmode_codes/ldpc-128-82-sf11.gen
new file mode 100644
index 000000000..60e301d92
Binary files /dev/null and b/lib/ldpc/jtmode_codes/ldpc-128-82-sf11.gen differ
diff --git a/lib/ldpc/jtmode_codes/ldpc-128-82-sf11.pchk b/lib/ldpc/jtmode_codes/ldpc-128-82-sf11.pchk
new file mode 100644
index 000000000..be44a21ac
Binary files /dev/null and b/lib/ldpc/jtmode_codes/ldpc-128-82-sf11.pchk differ
diff --git a/lib/ldpc/jtmode_codes/ldpc-search b/lib/ldpc/jtmode_codes/ldpc-search
index 5591c3adb..425288fad 100755
--- a/lib/ldpc/jtmode_codes/ldpc-search
+++ b/lib/ldpc/jtmode_codes/ldpc-search
@@ -4,13 +4,13 @@
 n=128
 k=80
 m=$((n-k))
-niterations=5
+niterations=10
 
 set -e  # Stop if an error occurs
 
 rand-src  ldpc.src 2 "$k"x100000
 
-for i in `seq 1000 2000`
+for i in `seq 1 1000`
 do
   seed=$i
   echo seed $seed
diff --git a/lib/ldpc/jtmode_codes/ldpc-waterfall b/lib/ldpc/jtmode_codes/ldpc-waterfall
index 502eb0bc6..6ab70c753 100755
--- a/lib/ldpc/jtmode_codes/ldpc-waterfall
+++ b/lib/ldpc/jtmode_codes/ldpc-waterfall
@@ -10,16 +10,16 @@ set -e  # Stop if an error occurs
 #set -v  # Echo commands as they are read
 
 n=128
-k=82
+k=80
 m=$((n-k))
-seed=182
-ntrials=10000
+seed=873
+ntrials=1000000
 niterations=10
 
 rate=$(echo "scale=5; $k/$n" | bc)
 echo n=$n k=$k rate=$rate m=$m
 
-make-ldpc ldpc.pchk "$m" "$n" $seed evenboth 9x3/1x4 no4cycle
+make-ldpc ldpc.pchk "$m" "$n" $seed evenboth 120x3/8x4 no4cycle
 
 make-gen  ldpc.pchk ldpc.gen sparse
 rand-src  ldpc.src 1 "$k"x"$ntrials"