diff --git a/openbsc/tests/si/si_test.ok b/openbsc/tests/si/si_test.ok
new file mode 100644
index 0000000..6c4b028
--- /dev/null
+++ b/openbsc/tests/si/si_test.ok
@@ -0,0 +1,20 @@
+Element is: 2 => freqs[i] = 121
+Element is: 2 => freqs[i] = 1
+Element is: 0 => freqs[i] = 68
+w[0]=122
+w[1]=2
+w[2]=69
+w[3]=204
+w[4]=75
+w[5]=66
+w[6]=60
+w[7]=70
+w[8]=83
+w[9]=3
+w[10]=24
+w[11]=67
+w[12]=54
+w[13]=64
+w[14]=70
+w[15]=9
+Range512: 88 4b 2a 95 65 95 55 2c a9 55 aa 55 6a 95 59 55