On 10/06/2017 03:26 PM, George N. White III wrote:
Cables and connections were always a problem area for hardware; now we need to think about whether problems are due to RF "interference", which could be a too strong RF signal from some other device, or poorly designed hardware that is not rejecting spurious signals.
Indeed. At one point, I was doing senior tech support for an ISP. One day I got a call from a customer who was having connection issues with his ADSL, and the description made it sound like line noise. After asking some questions, I learned that the cable from the phone socket to the modem was too long and he'd coiled it up. I explained that this just made an electromagnet out of the line and it was causing interference with itself. I told him to get a shorter cable, and not let it get coiled again. AFAICT, problem solved.
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