Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Jump to bottom

Smaller latency for CW/SSB/WSPR reception #48

Open
jj1bdx opened this issue Dec 15, 2023 · 0 comments
Open

Smaller latency for CW/SSB/WSPR reception #48

jj1bdx opened this issue Dec 15, 2023 · 0 comments

Comments

@jj1bdx
Copy link
Owner

jj1bdx commented Dec 15, 2023

Things to do:

  • Stop using 48kHz <-> 12kHz resampling
    • Increase latency during these rate conversions
  • Steep filter for CW/SSB with 48kHz sampling rate
    • Order: > 1000
      • How to design? SciPy? pyfda?
    • CW/WSPR: 250Hz (i.e., +-125Hz) 0dB passband bandwidth, 400Hz -90dB passband bandwidth
    • SSB: 2800Hz (i.e., +-1500Hz) 0dB passband bandwidth, 3000Hz -90dB passband bandwidth
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
Assignees
No one assigned
Labels
None yet
Projects
None yet
Milestone
No milestone
Development

No branches or pull requests
1 participant
@jj1bdx