Openreach G.fast estimated speed
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159 - 97 downstream high & low
14 - 12 upstream high & low
400m long line (line attenuation 12.6dB on FTTC)
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220 - 158 downstream high & low
32 - 30 upstream high & low
350m long line (line attenuation 11.9dB on FTTC)
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277 - 215 downstream high & low
44 - 42 upstream high & low
300m long line (line attenuation 11.2dB on FTTC)
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330 - 268 downstream high & low
50 - 48 upstream high & low
250m long line (line attenuation 10.5dB on FTTC)
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