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-rw-r--r--gr-analog/grc/analog_am_demod_cf.block.yml4
1 files changed, 4 insertions, 0 deletions
diff --git a/gr-analog/grc/analog_am_demod_cf.block.yml b/gr-analog/grc/analog_am_demod_cf.block.yml
index d45252ab50..1636deac9b 100644
--- a/gr-analog/grc/analog_am_demod_cf.block.yml
+++ b/gr-analog/grc/analog_am_demod_cf.block.yml
@@ -25,6 +25,10 @@ inputs:
outputs:
- domain: stream
dtype: float
+
+asserts:
+- ${ audio_pass > 0 }
+- ${audio_pass < audio_stop }
templates:
imports: from gnuradio import analog