Hi, I though this was interesting, though some of the fine detail is speaking in tongues. David Rowetel alters his copper VDSL line with a ‘notch filter’ around 7 MHz so the modem learns to avoid that area when training. This stops his VDSL connection dropping when he transmits on his 40 m dipole. Lots of detail, briefly presented. http://www.rowetel.com/?p=6896
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