When testing RG-59/U coaxial cable. PL-75 is able to connect to oscilloscope input to get most suitable impedance matching. This ensures to gain maximum frequency convert and minimum voltage standing wave ratio. Also, frequency response is able to have effectively extension.
RG-59/U is often used at baseband video frequencies,such as composite video,broadcast frequencies,cable TV systems, VCRs, digital cable/satellite receivers and consumer equipment,audio device and ADAT optical device.