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Darknessfall
Premium
join:2012-08-17
kudos:5

1 edit

[Connectivity] Dual 32 MHz vs Single/Dual 96 MHz Tuner?

Is there any difference between modems using either? Is one better? One worse?



telcodad

join:2011-09-16
Lincroft, NJ
kudos:7

Re: [Connectivity] Dual 32 MHz vs single 96 MHz Tuner?

Well, if you're talking Broadcom DOCSIS 3.0 chipsets:

The "first generation" Broadcom BCM3380 chipset used an "Integrated 64-MHz wideband receiver with two independent 32-MHz blocks." (»www.broadcom.com/products/Cable/···/BCM3380)

The next, "new and improved" Broadcom BCM3382 chipset used "a second generation integrated wideband tuner, with an extended bandwidth of 96MHz." (»www.broadcom.com/products/Cable/···/BCM3382)

So it's better to have a "single 96 MHz tuner" in your modem.



Darknessfall
Premium
join:2012-08-17
kudos:5

Is the DPC3008 still having issues on the newest build they released? Anyone hear of the problems occurring on a Cisco CMTS?
The Comcast thread seemed to have settled down lately.



telcodad

join:2011-09-16
Lincroft, NJ
kudos:7

According to the latest reports I've seen on the DPC3008, it looks like the update to the May 2012 version of the firmware may have resolved the issues.

See: »Re: Upgraded from DOCSIS 2 to 3, Speeds plummeted
and:
»Re: sb6141, sb6180, zoom5341, dpc3010



Darknessfall
Premium
join:2012-08-17
kudos:5

Thanks Telco for your responses . I always like how you leave links to things on your posts and keep things updated.



Darknessfall
Premium
join:2012-08-17
kudos:5

Well, I ordered the DPC3008 right now. I had the SB6141 ordered but $40 more wasn't worth it to me lol. If it doesn't work right then I guess I can always send it back :P.


Extide

join:2000-06-11
84129
reply to Darknessfall

Re: [Connectivity] Dual 32 MHz vs Single/Dual 96 MHz Tuner?

I have the DPC3008 and do pretty heavy usage in both directions and I havent had a single issue. I am on the new May 2012 firmware as well. When I bought it, it had the older firmware, but it auto updated itself when I hooked it up.



Darknessfall
Premium
join:2012-08-17
kudos:5

What are your signals like? Since getting the DPC3008 my power levels went from 1.6-3.3 to 3.2-6.7 dBmV and SNR went from 35-38 to 40