George Berger writes:
>> A year ago, I called and asked for upgrade of our dial-up connection to
>> broadband cable.
>> I had already wired our home with a two-way splitter from the Comcast
>> cable entry to our home (which, by the way, provided -- and still
>> provides -- excellent TV reception). I used top-line Belden RG 59 cable
>> for the 20' run to our top floor den where we have our computer. >> ...
> FYI: RG-59 has an upper bandwidth pass of around 800-900MHz. Cable
> companies have long been using RG-6 for their installations which has
> an upper bandwidth pass up around 1.8Ghz.
> I couldn't tell you what channels and ranges your cable company runs
> their DOCSIS channels for cable modem bandwidth, but if your area
> depends on channels beyond the 800MHz part, your RG-59 cable very well
> could have had too much attenuation in the channel allocations needed
> for their cable-modem setup.
> Of course, this doesn't excuse the installation tech that couldn't do
> basic troubleshooting, but it could very well have been your interior
> wiring not being the proper type.
DOCSIS runs up around 1.9GHz or so.