Amateur Extra › E9 Antennas and Transmission Lines › E9F08
E9F08
Which of the following is a significant difference between foam dielectric coaxial cable and solid dielectric coaxial cable, assuming all other parameters are the same?
Pick an answer to check it.
Answer: D. All these choices are correct
Foam dielectric has more air, so it has lower loss and higher velocity factor. It also withstands less voltage than solid dielectric. All three statements are true.
Tip: Foam: less loss, faster, lower voltage rating.