The CL-SIP329, AM/CW/SSB Radio Receiver Trainer, is designed to introduce the student to radio communications via free space and ionosphere. With an appropriate outside antenna, the world of shortwave listening will open up to the student.

The comprehensive manual presents the principles of radio receivers, radio wave propagation, world-wide time signals, UTC, and the measurement of various radio receiver parameters including sensitivity, selectivity, and minimum discernible signal (MDS), path loss, and noise plus laboratory experimentation, review questions and answers.