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Diffstat (limited to 'gr-analog/lib/fmdet_cf_impl.cc')
-rw-r--r--gr-analog/lib/fmdet_cf_impl.cc2
1 files changed, 1 insertions, 1 deletions
diff --git a/gr-analog/lib/fmdet_cf_impl.cc b/gr-analog/lib/fmdet_cf_impl.cc
index 2c48ff07e2..38496d189b 100644
--- a/gr-analog/lib/fmdet_cf_impl.cc
+++ b/gr-analog/lib/fmdet_cf_impl.cc
@@ -106,7 +106,7 @@ namespace gr {
while(size-- > 0) {
S0 = *iptr++;
- Sdot = d_scl * (-S0+d_8*S1-d_8*S1+S4);
+ Sdot = d_scl * (-S0+d_8*S1-d_8*S2+S4);
d_freq = (S2.real()*Sdot.imag()-S2.imag()*Sdot.real()) /
(S2.real()*S2.real()+S2.imag()*S2.imag());