26-04-2007, 22:00
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#6
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©Beam Software
Join Date: Jan 2004
Location: Teesside
Services: BB (200mbit), 1x V6, iPad, iPhone
Posts: 1,411
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Re: Dire Service
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Originally Posted by http://homepage.ntlworld.com/robin.d.h.walker/cmtips/signal.html
Downstream SNR: should be 30 dB or higher: the higher the better. As the SNR decreases below 30 dB, performance will steadily decrease, and errors will increase. The cable modem might stop working properly if the SNR drops below 23.5 dB.
Downstream Received Power: the DOCSIS specification requires cable modems to function correctly with downstream power levels in the range -15 dBmV to +15 dBmV: power readings at or close to those extremes are likely to be unacceptable. However, when connected to a real-life CATV network, a cable modem might be functional over a narrower range than this. Accordingly, cable ISPs will specify an even narrower target range when commissioning their network: this target range will differ according to ISP.
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Looks like you need an engineers visit.
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