Currently, the handbook doesn't exist. It would be nice if it did though.

Current Progress

The current sources are built and published on the Debian website as HTML and as PDF.

Contributing

The Debian Hamradio Handbook is maintained as a subproject of the Debian Documentation Project (DDP) by the Debian Hamradio Maintainers. In order to contribute, you will need to join the DDP Alioth group.

Other Resources

Fedora Project had a similar guide which can be found at:

https://docs.fedoraproject.org/en-US/Fedora/19/html/Amateur_Radio_Guide/index.html