A blue slipknot of cable entwines this "cookbook" by Clifford B. Schrock. Contents of the booklet include photographs of the author and testing equipment, and CTR Readout. Sections include testing information for amplitude, intermodulation, frequency measurements, co-channel interference, frequency response, signal-to-noise, hum and low-frequency distortion, terminal isolation, radiation, measurements with spectrum analyzer, hints for Analyzer Use, and FCC (symbol) 76:605.