diff --git a/mmss/network.cpp b/mmss/network.cpp
index ae1dc3c..9eb3b3a 100644
--- a/mmss/network.cpp
+++ b/mmss/network.cpp
@@ -38,10 +38,10 @@ float network_t::get_etx() const {
 	if (etx_min == etx_max)
 		return etx_min;
 
-	float val = float(std::sin(2*M_PI * (mmss->now()/1000.0 - phase)/period));
+	float val = float(std::sin(2*M_PI * (mmss->now()/1000.0 + phase)/period));
 	float diff = etx_max - etx_min;
 
-	mmss->logf(LOG_DEBUG, "ETX: %.3f", etx_min + diff * (val+1)/2);
+	mmss->logf(LOG_DEBUG, "ETX for `%s' is %.3f now", name.c_str(), etx_min + diff * (val+1)/2);
 
 	return etx_min + diff * (val+1)/2;
 }