http://www.dslreports.com/forum/Connectivity-Motorola-5100-vs-5120-14532747 en Thu, 23 May 2013 19:53:12 EDT Thu, 23 May 2013 19:53:12 EDT http://www.dslreports.com/forum/Re-Connectivity-Motorola-5100-vs-5120-14533940 http://www.dslreports.com/forum/Re-Connectivity-Motorola-5100-vs-5120-14533940 Sat, 08 Oct 2005 18:04:47 EDT http://www.dslreports.com/forum/Re-Connectivity-Motorola-5100-vs-5120-14533908 said by rseiler:

Could you expound on that? Noise from what? Is there something I should be keeping it away from? And what's a "modulated plant"?
Noise as in low SNR (Signal to Noise Ratio). It just isn't as good at handling excessive noise (below 33dB) when the downstream channel is using 256QAM for modulation as the SB5100's broadcom chipset is.

Plant is just a term for cable system.
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Spam: 8800+ messages currently using 268 MB (11%) of my 2442 MB]]> http://www.dslreports.com/forum/Re-Connectivity-Motorola-5100-vs-5120-14533908 Sat, 08 Oct 2005 17:58:25 EDT http://www.dslreports.com/forum/Re-Connectivity-Motorola-5100-vs-5120-14533870 said by Nerdtalker:

SB5100
• TI (Texas Instruments) chipset is more susceptible to noise related issues, especially in a 256QAM modulated plant
Could you expound on that? Noise from what? Is there something I should be keeping it away from? And what's a "modulated plant"?

Incidentally, I note that I have firmware "SB5120-2.9.2.10-SCM03-NOSH," and I've seen references to it going back to last year. If it's still current, I guess they don't update it very often.]]> http://www.dslreports.com/forum/Re-Connectivity-Motorola-5100-vs-5120-14533870 Sat, 08 Oct 2005 17:52:19 EDT http://www.dslreports.com/forum/Re-Connectivity-Motorola-5100-vs-5120-14533678 • Has some upstream issues in ex-attbi areas, possibly firmware related
• Broadcom chipset handles noise better, and is thus hardier in 256QAM environments

SB5120
• Doesn't have the same upstream issues the SB5100 has (as far as I know)
• TI (Texas Instruments) chipset is more susceptible to noise related issues, especially in a 256QAM modulated plant
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"Some people never see the light till it shines thru bullet holes." -Bruce Cockburn

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