11. The transmission medium for CoaXPress is coaxial cable with a characteristic impedance of 75 ?. 12. The parameter is termed the index function and the characteristic impedance of the normalised network. 13. The characteristic impedance of a lossless transmission line is purely real, with no reactive component. 14. A number of other approximate formulae for the characteristic impedance have been advanced by other authors. 15. The transconductive impedance seen by each transistor is half the characteristic impedance of the transmission line. 16. In physical units, the dual is taken with respect to some nominal or characteristic impedance . 17. Variation of characteristic impedance with frequency. 18. USB signals are transmitted using differential signaling on a twisted-pair data cable with characteristic impedance . 19. This is so because there is no reflection on a line terminated in its own characteristic impedance . 20. Cable types that are appropriate for DMX512 usage will have a nominal characteristic impedance of 120 ohms.
