Topic ' Ambit >> signal levels' in forum 'Cable users' - dslreports.com http://www.dslreports.com/forum/-Ambit-signal-levels-23171442 en Fri, 10 Feb 2012 19:06:01 EDT Fri, 10 Feb 2012 19:06:01 EDT Re: Ambit >> signal levels http://www.dslreports.com/forum/Re-Ambit-signal-levels-23178347 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. ]]> http://www.dslreports.com/forum/Re-Ambit-signal-levels-23178347 Tue, 13 Oct 2009 17:57:41 EDT Re: Ambit >> signal levels http://www.dslreports.com/forum/Re-Ambit-signal-levels-23172695
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.
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I tried to remain child-like, all I achieved was childish.]]> http://www.dslreports.com/forum/Re-Ambit-signal-levels-23172695 Mon, 12 Oct 2009 18:22:46 EDT Re: Ambit >> signal levels http://www.dslreports.com/forum/Re-Ambit-signal-levels-23171808
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? ]]> http://www.dslreports.com/forum/Re-Ambit-signal-levels-23171808 Mon, 12 Oct 2009 15:57:14 EDT Re: Ambit >> signal levels http://www.dslreports.com/forum/Re-Ambit-signal-levels-23171509
»homepage.ntlworld.com/robin.d.h.···nal.html
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I tried to remain child-like, all I achieved was childish.]]> http://www.dslreports.com/forum/Re-Ambit-signal-levels-23171509 Mon, 12 Oct 2009 15:06:56 EDT Ambit >> signal levels http://www.dslreports.com/forum/-Ambit-signal-levels-23171442
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.]]> http://www.dslreports.com/forum/-Ambit-signal-levels-23171442 Mon, 12 Oct 2009 14:53:53 EDT