Maximum Transmission Distances for SD Cables

These maximum distances are based on 30dB loss points except for SD-1-LL at frequencies of 720MHz upwards which are based on a 20dB loss threshold.

Bit Error Rate (BER) can vary a lot as the theoretical maximum lengths are approached, so it is suggested that 90% of the maximum lengths shown is used to allow a margin for bit errors.

Frequency (MHz) 135 180 270 360 720 1000 2000 3000
Nominal data rate (Mb/s) 270 360 540 720 1440 2000 4000 8000
Class Component
Video
Component
Widescreen
Component
Widescreen
Component
Widescreen
HDTV
(1080i)
1080p
Kelsey SD-1 (m) 262 277 187 161 90 60 30
Kelsey SD-6 (m) 262 277 187 161 90 60 30
Kelsey SD-1-LL (m) 404 349 284 247 140 99 TBC