I like to operate CW with the tone of the received signal matched to my sidetone. I have a problem though, hearing zero beat due to my ageing ears. I found a way to do this visually using the waterfall display of my PSK-31 programs. My computer screen is already very busy with the Pegasus software, logging program etc. To overcome this I have compiled a special version of Spectrogram. It has a small window which takes very little space on my computer screen.

Note! I am not a programmer but I managed to make this thing work and added it to my website because I thought it may be useful to others. It has turned out to be very popular indeed. One shortcoming that it has is the data is not saved between sessions and it must be setup each time. I have spent a great deal of time trying to overcome this. For reasons I don't understand I can't even get my compiler to re-compile it as it is, let alone with mods to save the data. I have given up trying! If you know someone who might be able to help please E-mail me! and let me know.

Darrel AA7FV has come with patch to fix the above mentioned shortcoming. PATCH.EXE is now included in the .ZIP file. See the special instructions in the readme file.