diff --git a/Source/Receiver.cpp b/Source/Receiver.cpp
index db75ece..cd8d45e 100644
--- a/Source/Receiver.cpp
+++ b/Source/Receiver.cpp
@@ -381,9 +381,9 @@ void Receiver::processPassband(RVec const &rf, size_t len)
 
 	RVec rf_noise(rf);
 	radio_float_t k_awgn = 0;
-	if (m_params.awgn_dB > -1000)
+	if (m_params.awgn_dB > radio_float_t(-100))
 	{
-		k_awgn = pow(10.0, m_params.awgn_dB/20.0);
+		k_awgn = pow(radio_float_t(10.0), radio_float_t(m_params.awgn_dB/20.0));
 	}
 	for (size_t i=0; i < len; i++)
 	{