Can the attenuation of a cable be negative?

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Armin Walter Doerry

Your equation relates output to input, therefore indicates "gain" in dB... A negative gain equates to an attenuation... e.g. -20 dB gain is same as 20 dB attenuation...

Srinidhi Bheesette

Thank you very much Armin! :)

Chaouki Hannachi

Hello srinidhi,

In conventional cables, attenuation is usually specified in terms of the number of decibels per foot. The less the attenuation per unit distance.

Best regards