This course provides an introduction to the principles of communications and navigation systems. It is written for anyone pursuing a career in aircraft maintenance engineering or a related aerospace engineering discipline, and in particular will be suitable for those studying for licensed aircraft maintenance engineer status.
You can refer book for Aerospace & Aviation.
Book Name-Aircraft Communications and Navigation Systems: Principles, Maintenance and Operation for Aircraft Engineers and Technicians
Author Name-by Mike Tooley BA & David Wyatt
Link : http://www.amazon.in/Aircraft-Communications-Navigation-Systems-Maintenance/dp/0750681373?tag=googinhydr18418-21&tag=googinkenshoo-21&ascsubtag=fd802556-af93-46d2-85f1-95599dffa27b