for the 4th Edition of Wayne Tomasi's textbook on Electronic Communication Systems
, likely corresponding to a document ID or a page count (as the book itself is approximately 858 pages long). Google Books Key Content of the Textbook for the 4th Edition of Wayne Tomasi's textbook
The textbook and its solution manual cover the following critical areas of electronic communication: Amplitude Modulation (AM): for the 4th Edition of Wayne Tomasi's textbook
Transmission and reception, including single sideband systems. Angle Modulation (FM): Transmission, reception, and stereo FM. Transmission Lines & Wave Propagation: for the 4th Edition of Wayne Tomasi's textbook