Ambit >> signal levels - dslreports.com

Author	All Replies
TX CS Aggie join:2009-07-22 College Station, TX	Ambit >> signal levels My girlfriend lives on the 3rd floor in a apartment complex and uses the cable and internet company Grande Communications in Austin Tx. Her internet work alright but pages wont load till you hit refresh. It got a good bit better when I moved her over to OpenDNS but it is still not as good as I would like. Ambit Model: U10C018 Upstream Modulation : QAM16 Upstream transmit Power Level : 51.5 dBmV Downstream Modulation : QAM256 Downstream Receive Power Level : -4.3 dBmV Downstream SNR : 38.2 dB From my experience her levels are marginal. Am I right? Is a tech call warranted and is there any thing I could do to help improve things? Would a different cable modem be better for this application? I have spare Motorola SB5120 and SB5101, Scientific Atlanta DPC-2100 and Linksys BEFCMU10v4 cable modems.
TX CS Aggie join:2009-07-22 College Station, TX	to forum · permalink · · 2009-10-12 14:53:53 ·
jimbopalmer Tsar of all the Rushers join:2008-06-02 Greenwood, MS ·Windjammer Cable	Upstream Power level is marginal. »homepage.ntlworld.com/robin.d.h.···nal.html -- I tried to remain child-like, all I achieved was childish.
	to forum · permalink · · 2009-10-12 15:06:56 ·
TX CS Aggie join:2009-07-22 College Station, TX 1 edit	According to the link you posted I fall within acceptable ranges. Upstream Transmit Power : range +8 to +58 dBmV (perfered below +55 dBmV) Downstream Received Power: DOCSIS specification requires a range of -15 dBmV to +15 dBmV Downstream SNR: should be 30 dB or higher: At first look I thought my Upstream Transmit Power was alittle high and Downstream Received Power was a little low. what ranges are good and what are marginal?
	to forum · permalink · · 2009-10-12 15:57:14 ·
jimbopalmer Tsar of all the Rushers join:2008-06-02 Greenwood, MS ·Windjammer Cable	reply to TX CS Aggie From the web site Downstream SNR: should be 30 dB or higher: the higher the better. 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. Upstream Transmit Power: Values in the forties are the most common. -- I tried to remain child-like, all I achieved was childish.
	to forum · permalink · · 2009-10-12 18:22:46 ·
TX CS Aggie join:2009-07-22 College Station, TX	said by jimbopalmer : From the web site Upstream Transmit Power: Values in the forties are the most common. thank you said by jimbopalmer : From the web site Downstream SNR: should be 30 dB or higher: the higher the better. 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. Helpful... Cough, cough.
TX CS Aggie join:2009-07-22 College Station, TX	to forum · permalink · · 2009-10-13 17:57:41 ·


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