• Table of Q codes, highlighting the ones in the current question bank.
• Figures from Chapter 13, redrawn to fit on one page, plus the same figures with blank boxes for study purposes. (Updated 04/07/13)
• Figures from Chapter 14, likewise.
• Figures from Chapter 11, in the same style as the ones from Chs 13 & 14.
• RIC-2 Schedule 1, with a spectrum chart, and frequencies that appear in the current bank highlighted.
• Two more spectrum charts.

Not in the PDFs: the nine letters of the phonetic alphabet that appear in the question bank are: Alpha, Bravo, Delta, Echo, Golf, India, Lima, Papa, Romeo. Note: the wrong answers for the questions include the World War II US and UK versions, which might be familiar from old movies or otherwise.

Let me know of any further errors.