1 files changed, 3 insertions, 0 deletions
diff --git a/src/TII.h b/src/TII.h
index fe67978..4c5c605 100644
--- a/src/TII.h
+++ b/src/TII.h
@@ -122,6 +122,9 @@ class TII : public ModCodec, public RemoteControllable
         // m_enabled_carriers is read by modulator thread, and written
         // to by RC thread.
         mutable boost::mutex m_enabled_carriers_mutex;
+
+        // m_enabled_carriers is true only for the first carrier in the
+        // active pair
         std::vector<bool> m_enabled_carriers;
 };