Simple squelch block based on average signal power and threshold in dB. The output equals the input if the average input is >= the threshold, and zero otherwise.
The average is computed using a Single Pole IIR filter. It uses the magnitude squared for both averaging and for comparing to the threshold.
- Threshold (R)
- Threshold for muting.
- Gain parameter for the running average filter.
This flowgraph shows a Simple Squelch block in a working 2 meter receiver.
- C++ files
- Header files
- Public header files
- Block definition