The only difference between the X-terminator and any other center-loaded
vertical is that the former is built for kilowatts (and not very well at that,
as the conductors are chrome plated, so it's RF resistance due to skin effect is
higher than stainless steel, and much higher than bare copper or silver). There
is no way that this antenna will outperform the unloaded 102" stainless-steel
whip.

The coils are copper with a chrome plating.................The chrome
does not cause any additional skin effect.