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EMC EFT and RE Test
- Thread starter uppi_777
- Start date
tonyStewart
- Joined May 8, 2012
- 231
Cables have an incremental 0.5 to 1 uH/m inductance.
1. EFT is a conducted ingress test so a short cable presents a lower impedance and higher bandwidth sensitivity to conducted impulse noise.
2. For radiated noise, long cables have mutual coupling that increases with length and thus the "antenna effect" for ingress and egress. This is reduced when CM chokes or "Pi" Line Filters are used.
1. EFT is a conducted ingress test so a short cable presents a lower impedance and higher bandwidth sensitivity to conducted impulse noise.
2. For radiated noise, long cables have mutual coupling that increases with length and thus the "antenna effect" for ingress and egress. This is reduced when CM chokes or "Pi" Line Filters are used.
