diff --git a/meetups/group_vars/all/all.yml b/meetups/group_vars/all/all.yml
index af3313e..f506ad9 100644
--- a/meetups/group_vars/all/all.yml
+++ b/meetups/group_vars/all/all.yml
@@ -53,7 +53,7 @@ inventory_repo_dir: meetups
 
 # Local frequency setting, in Hz
 # This can be either 50 or 60Hz
-frequency: 60
+frequency: 50
 
 sources:
   - Camera