You can select the one you want, and change the bandpass to tighten in on it. It shows the CW transmissions in a horizontal waterfall so you can see what signals are around and allows you to judge their relative qualities. Different fists, even bad band conditions, will defeat most PC programs. Second shows fldigi after restarting it with fldigi clean and decoding fine. First shows the waterfalls with fldigi fuzzy and decoding poor. But after time it seems to go back to fuzzy. After restarting fldigi the waterfall clears up nicely and decoding goes OK. The goal was to have a CW decoder that adapts better to different operators rhytms, sudden speed changes, signal fluctuations and noise and still is able to decode Morse code fairly accurately. It can decode multiple CW streams at the same time, and it does a fairly good job of decoding them, but not perfect. Yeah, jwt is spot on with his comment about how computers have a hard time with CW. Looking at the waterfall on SSDR it looks good but fldigi looks fuzzy. I have been working on a new Bayesian Morse decoder for FLDIGI for a while. ![]() ![]() I’m going to write a more detailed review of this one when we start looking at digital radio modes and software.ĬW Skimmer: This program is pretty cool. It’s got a clean, modern display and many special features. Far superior to the above, and with a good number of other digital modes. 2 Fldigi is a computer program intended for Amateur Radio Digital Modes operation Fldigi operates in conjunction with a conventional HF SSB transceiver. The biggest problem for me was that it has no option to set the font color, so on my system it displays black text on a black background! That alone made it unusable.įldigi: This is a great program. Most of the output is junk.ĬW Decoder: This one is similar to CwGet, but did marginally better decoding, which isn’t saying much. The PSK decoder estimates the signal to noise ratio, S/N. Unfortunately, it does a very poor job of decoding the CW. Highly sensitive CW decoder that simultaneously decodes ALL CW signals in the receiver passband. Fldigi can send and receive Morse code from 5 wpm to 200 wpm. It has several panels to display CW signals and includes various filters. > 73 > Mauri AG1LE > fldigi-alpha mailing list. > Anyways, happy holidays for all FLDIGI users and hope to work you over > the radio. ![]() Two were poor, one was great, and the other was fairly good, but not the right one for me.ĬwGet: I had high hopes for this decoder because it was popular on QRZ. Also, if you know Viterbi or Kalman filter > algorithms like your pockets I would like to get help fixing a bug that > appears in posterior probability calculations in probp.c occasionally. I’ve been looking for good CW decoding software to use with my PC sound card for decoding CW on HF bands.
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