I'm just about to route my Ethernet cable from my router all the way to my shed, however, I wanted to ask whether the bend of a cable can affect the transmission. I'll be bending the cable around my house many times as well as drilling through walls. The cable is roughly 40m long and is Cat 7.
Broadly speaking, bending it is fine, although that's circular profile weatherproof cable, so you might have to accept slight bowing round corners rather than forcing to exactly a ninety degree fit, as doing that might compromise either conductors or insulation. Bending cable is normally only a problem with coaxial cables, because distortion of the circular profile or kinking causes signal attenuation and internal reflections that raise noise levels.
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