Arrl's Hf Digital Handbook

Thes book is vey completed and allows you to know all basic things about digital communications.

This book provides a good overview of digital communcation protocols used by amateurs over HF. Due to the development of the part of amateur radio the reference section (ca 2007) is not worth much but a quick search on the internet would provide 'n updated list. Good introduction if your are new to this.

Although some have complained that this book has little to offer grizzled veterans of digital operations on the HF bands, it is an excellent primer on: 1.) what's available, 2.) what each method can and can't do, and 3.) the requirements for operating each. This is a "handbook" in the sense of "a guide" or "a quick reference." It is not an encyclopedia, like ARRL's "Handbook of Radio Communications" or CRC's "Handbook of Chemistry and Physics," neither of which, ironically, can really be held in the hand.

This book answered all my question about PSK31 which is why I bought it. In fact it covered other ways to use my radio and computer that I did not know about. Very easy reading.

The ARRL always has well written books on any Ham Radio subject, and this one is no different. I had an earlier edition from 1999, but this one was upgraded with all sorts of new material. Worth the price