Set parameters of demappers for uplink channels
diff --git a/grc/demapping/gsm_sdcch8_demapper.xml b/grc/demapping/gsm_sdcch8_demapper.xml
index ab11d64..588820f 100644
--- a/grc/demapping/gsm_sdcch8_demapper.xml
+++ b/grc/demapping/gsm_sdcch8_demapper.xml
@@ -32,7 +32,7 @@
   <param>
     <name>uplink_starts_fn_mod51</name>
     <key>starts_fn_mod51</key>
-    <value>[0,4,8,12,16,20,24,28,32,36,40,44]</value>
+    <value>[15,19,23,27,31,35,39,43,47,0,4,8]</value>
     <type>int_vector</type>
     <hide>all</hide>
   </param>