diff --git a/plugins/channeltx/modnfm/nfmmodsource.cpp b/plugins/channeltx/modnfm/nfmmodsource.cpp
index 84476a172..c6016e33d 100644
--- a/plugins/channeltx/modnfm/nfmmodsource.cpp
+++ b/plugins/channeltx/modnfm/nfmmodsource.cpp
@@ -168,16 +168,16 @@ void NFMModSource::modulateSample()
     calculateLevel(t);
 
     if (m_settings.m_ctcssOn) {
-        t1 = (0.85f * m_bandpass.filter(t) + 0.15f * 0.625f * m_ctcssNco.next()) * 1.2f;
+        t1 = 0.85f * m_bandpass.filter(t) + 0.15f * 0.625f * m_ctcssNco.next();
     } else if (m_settings.m_dcsOn) {
-        t1 = (0.9f * m_bandpass.filter(t) + 0.1f * 0.625f * m_dcsMod.next()) * 1.2f;
+        t1 = 0.9f * m_bandpass.filter(t) + 0.1f * 0.625f * m_dcsMod.next();
     } else if (m_settings.m_bpfOn) {
-        t1 = m_bandpass.filter(t) * 1.2f;
+        t1 = m_bandpass.filter(t);
     } else {
-        t1 = m_lowpass.filter(t) * 1.2f;
+        t1 = m_lowpass.filter(t);
     }
 
-    m_modPhasor += (m_settings.m_fmDeviation / (float) m_audioSampleRate) * t1;
+    m_modPhasor += (M_PI * m_settings.m_fmDeviation / (float) m_audioSampleRate) * t1;
 
     // limit phasor range to ]-pi,pi]
     if (m_modPhasor > M_PI) {