Highly portable instrument (1.5kg, battery-operated) with two TX/RX test ports over a frequency range from 100Hz to 2.4MHz. 4-in-1 test functions: level generator, selective level meter, spectrum analyzer, psophometer. Measurements of pilot carrier level, frequency sweep and tracking, tone channel, cable test, noise measurement, crosstalk, NEXT, micro-interruptions, group delay, jitter, return loss, impedance meter (balanced and unbalanced modes), and others. Portable case, balanced/unbalanced cables, and 40dB attenuator.