Agilent Hp 4934A Transmission Impairment Measuring Set (TIMS)
The 4934A is a Transmission Impairment Measuring Set for installation and maintenance of voiceband data, wideband data, program and dds local loop circuits. It features a choice of C-message, 3 kHz flat, 15 kHz flat, program, and 50 kbit filters as well as a choice of impedances.