This is not a bad book, it has plenty of frequencies in there, just a couple of slight things that my improve things, it would be nice if they stated what mode you should listen on, eg: AM,FM LSB,USB, also i found that the print was a little difficult to read, instead of making the book a little bigger they reduced the size of the text, my eye sight aint that great and i do have difficulty reading the pages, so i rate it 4 out of 5.