To address common noise problems in cable boxes, you can try troubleshooting techniques such as checking the connections, ensuring proper ventilation, and resetting the box. If the issues persist, it may be necessary to seek professional help to diagnose and repair the problem. After Google searching "Do Fibre Optic Cables attract any noise", most results return that they attract virtually no noise. Just the channel effects that @dll mentioned in his. Optical amplifiers, such as erbium-doped fiber amplifiers (EDFAs), are used to boost the optical signals in long-haul fiber optic communication systems. However, they introduce noise into the signal due to the spontaneous emission of photons. Measurement was carried out in an anechoic chamber to ensure stable conditions of acoustic pressure in the range from 20 Hz to 20 kHz.