Heavier gauge cables typically have a greater amount of dielectric around each conductor. As such, this can change the impedance of the cable as a whole. Dielectric absorption may also become a bigger factor as you have more surface area of the larger conductor that comes into contact with a larger area of insulating material.
Other than that, heavier gauge cables keep series resistance to a minimum and thermal losses are minimized. Sean
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Other than that, heavier gauge cables keep series resistance to a minimum and thermal losses are minimized. Sean
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