WebCable modems work best if the downstream signal level is within +/-15dbmV, and the upstream power is between 37dbmV and 55dbmV. If the signal is too strong on the downstream, or too low on the upstream, a tech may need to install an attenuator. WebFeb 10, 2024 · They even said the modem is reporting 50/51. Quick search seems to show it is below maximum allowable levels (I assume the bold one is my signal): 50 dBmV maximum for OFDMA (DOCSIS 3.1) 52 dBmV maximum for A-TDMA, TDMA & SC-QAM (DOCSIS 3.0) 53 dBmV maximum for S-CDMA DOCSIS 2.0 (All Modulations) 54 dBmV …
How to Read Your Cable Modem’s Diagnostic Page When ... - How-To Geek
WebYou can use the values below as a guideline as to what good "signal levels" are. Downstream Power (-15dBmV to +15dBmV) - measure of the signal level received by … WebWhen you’re having issues with your cable modem, many service providers will test your signal strength from their end, but you can do this on your own. ... Upstream SNR and Upstream Power. Advertisement Advertisement … shortcut for dragging formula in excel
How to Check the Signal Strength on a Cable Modem
WebCable modem levels - downstream power too high and snr not the greatest. What should I do? comments sorted by Best Top New Controversial Q&A Add a Comment SasquatchM1 • Additional comment actions. Looking at you signal levels you either have an unneccesary forward only amp or lelels out of the tap are off. ... WebMay 9, 2024 · A week or so ago, Xfinity came out and fixed the node/lines for my neighborhood. After the upgrade, my signal levels were dramatically improved. My downstream power level went from -6 dBmV to roughly -1dBmv on most channels. My upstream went from roughly 50/51 down to 41/42. Yesterday I noticed my downstream … WebMay 13, 2024 · Find the best cable modems for your home; There's nothing like the satisfying click when an Ethernet cable's RJ-45 connector snaps into place, ready to … shortcut for drawing a line in word