FLdigi CW KEYBOARD now has its own bandpass filter to help clean up the edge noise generated by QRQ CW sending.

The latest version of FLdigi, 3.22.10, now has its own, cw audio bandpass filter,

to help filter out any qrq cw edge noises made in TRANSMIT MODE.

Even with 6 milliseconds of rise and fall time, at 75 wpm,

here is a spectrum analyzer picture of the edge noise that is still present:

HERE IS A PICTURE OF THE SPECTRUM ANALYSIS after activating the new FLdigi BANDPASS FILTER

FLdigi has made yet another breakthrough feature to help with QRQ CW copy and QRQ CW sending

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Comment by Joe on December 31, 2014 at 1:34pm

I hope Synaptic Package Manager on Peppermint gets this update. Chuck, how can I install it now on Linux based operating system?

Joe W3GW

Comment by Chuck aa0hw on December 31, 2014 at 1:50pm

 the UBUNTU-HAMS-UPDATES ppa now has the version with the new bandpass filter

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