1 files changed, 2 insertions, 0 deletions
diff --git a/TODO.md b/TODO.md
index f6c6a0e..d8ccf49 100644
--- a/TODO.md
+++ b/TODO.md
@@ -1,5 +1,7 @@
 # TODO
 
+- Two communications with different SF in the same channel are not an
+  interference
 - Control the ACK of the ACK (End device confirming an ACK): This requires
   something acting as a Network Server <<--
 - Time-on-air