Cable Modem Freqs.?

T

Tam/WB2TT

Guest
Does anybody know what band or bands of frequencies a cable modem operates
on? I want to look at the possibility of making a crossover network to
connect a modem and TV to the same splitter port. Right now the modem only
goes through one splitter. I do not want to add another one.

TIA

Tam
 
"Tam/WB2TT" <t-tammaru@c0mca$t.net> wrote in message
news:hNidnf74yekTue3dRVn-tA@comcast.com...
Does anybody know what band or bands of frequencies a cable modem operates
on? I want to look at the possibility of making a crossover network to
connect a modem and TV to the same splitter port. Right now the modem only
goes through one splitter. I do not want to add another one.
Click to expand...
In my house, the main line goes to a four-way, and everything connects to
that.
Makes no difference which port I put the cable modem on.
 
Tam/WB2TT wrote:
Does anybody know what band or bands of frequencies
a cable modem operates on?
Click to expand...
The range of frequencies is huge - basically, the whole cable spectrum.
Bands are 6MHz for NTSC (8MHz for PAL), with upstream between 5MHz and
42MHz, and downstream between 88MHz and 860MHz.

Providers typically stick to a few bands, but can easily change them on
you. They also tend to prefer the lower-power rolloff regions at the
ends of each spectrum, since they're more suitable for cable modems than
for TV.

Check out news://comp.dcom.modems.cable
 
Thanks, Richard. I was hoping it would be below 45 MHz for both directions.

Tam
"Richard" <rh86@azglobal.com> wrote in message
news:407062A1.8CFD112@azglobal.com...
Tam/WB2TT wrote:
Does anybody know what band or bands of frequencies
a cable modem operates on?

The range of frequencies is huge - basically, the whole cable spectrum.
Bands are 6MHz for NTSC (8MHz for PAL), with upstream between 5MHz and
42MHz, and downstream between 88MHz and 860MHz.

Providers typically stick to a few bands, but can easily change them on
you. They also tend to prefer the lower-power rolloff regions at the
ends of each spectrum, since they're more suitable for cable modems than
for TV.

Check out news://comp.dcom.modems.cable
Click to expand...
 
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