Create your free account now! Sign up

Re: Internet downstream freqs?

Cox uses 579 MHz downstream for HSI.  Signal levels should be between -10 to +10 dBmv at the modem.  This is easy to achieve if the install tech has a meter to verify levels off the tap, minus drop loss and minus splitter loss.  Return upstream at 29 to 50 Mhz should be between 37 to 50 dBmv.  They use 2 filters in the system, a green one only passes HSI and a blue filter that passes analog channels 2 to 22 and HSI.  Hope this helps.
This is CABL.com posting #307604. Tiny Link: cabl.co/mbsbw
Posted in reply to: Internet downstream freqs? by nrb1
There are 0 replies to this message