Cables for higher temperatures (up to 200°C) have a dielectric from PTFE and an outer sheath from FEP, PFA or PTFE. For higher temperatures (250°C) there are cables with a dielectric and sheath from Kapton®.
Magnetic (magnetisable) cables consist of an inner conductor made from steel, which is only copper-plated on the outside and partly silvered. The steel center provides the cable with more tensile strength (as well as making them more cost-effective) and merely disturb the transmission properties, as the high frequency line occurs mainly on the outside (skin effect).
Cables with conductors made of copper are non-magnetic.
You want to compare the technical characteristics of two different cables?
Which cable ist the best one for me? Here you will find the answer: Comparison Coaxial cable
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