"encyclopedia" of digital modes (modulation/encoding)

This looks like it could be very useful for those interested in decoding or understanding various digital modes, how they are encoded/modulated.

The web site is: http://www.frequencymanager.de/TH/th.html

There are print books for sale for HF modes and another for VHF/UHF. Roland Proesch is the author. (The books are available in german and english)

For each book a PDF except is available for free that still has lots of helpful information in it.

In addition to a brief description for each signal are a number of pictures of oscilloscope and sonogram/waterfall type views.

RTL-SDR users would find the VHF/UHF book directly relevant. However the HF book looks like it might provide a better foundation.

Take a look at

• HF: (81 pages) - http://www.frequencymanager.de/TH/files/KurzfassungTechnicalHandbookHF2013E.pdf
• VHF/UHF: (56 pages) - http://www.frequencymanager.de/TH/files/KurzfassungTechnicalHandbookVHF2013.pdf

Unfortunately, it doesn't look like he's selling the complete books in electronic form, only print. I came across this from a post to the digitalradio yahoo group by Ian Wade, G3NRW.

I've also forwarded this to rtl-sdr.com which I find is a very useful blog for SDR and digital modes.