1. Electromagnetic field hpe garan ginhka ai lam: Copper gaw kaja dik ai n-gun rawng ai arung arai langai re. Shielding layer hku nna, magri mang ni gaw cable ni kaw na pru wa ai electromagnetic fields ni hpe hkrak hkrak garan ginhka lu ai majaw, kaga electronic jak ni (sh) system ni hpe hkra machyi shangun ai wan n-gun hpe pat shingdang lu ai.
2. Electromagnetic wave hka lwi ai hpe pat shingdang ai: Copper strips ni a conductive atsam gaw electromagnetic wave ni hpe hkrak hkra hkap la lu ai (sh) hkrang shapraw ya lu ai, shinggan grup yin de n pru wa ai sha, cable (sh) n-gun hpe pat shingdang ya lu ai hte signal a n-gun hpe makawp maga ya lu ai.
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5. Structural madi shadaw ai lam: Kade nna yang, magri mang ni gaw cable ni hpe mung n-gun jaw ya lu ai, shanhte a jak n-gun hpe jat ya lu ai.
