Dear,

I hope you meant insertion loss and not insertion koss. Insertion loss is expressed in decibels or dB. The decibel is a logarithmic expression of the ratio of output voltage (voltage of the signal received at the end of the link) divided by input voltage (the voltage launched into the cable by the transmitter).

Temperature also affects insertion loss in some cables. The dielectric materials, which form the conductor insulation and cable jacket, absorb some of the transmitted signal as it propagates along the wire.

Hope this helps!