"Michael Coslo" wrote in message
...

snip

Time to call the cable company and tell them you want your MTV.


No way to know from here, but they may not be able to add another amp.

While I was looking for something else, I lurched into this page:

http://www.cisco.com/en/US/products/hw/cable/ps2217/products_white_paper0900aecd800fc94c.shtml

While its intended audience is Internet modem designers, the noise
discussions are informative with regard to other signals, too.

My point: When you try stringing too many amps in line, the signal-to-noise
ratio (SNR) eventually becomes unacceptable. (Remember the acceptable SNRs
cited for 256 QAM and 64 QAM.)

"Sal"