Posted 07 October 2010 - 06:27 PM
Posted 07 October 2010 - 08:17 PM
Edited by Thunderstruck, 07 October 2010 - 08:43 PM.
Posted 30 August 2012 - 01:09 AM
What are you talking about You have a tap that will adjust the return aside from the foward???
Post a picture
Mayby I missed the info about these taps. (in that long topic).
But I noticed this recent contribution/forum:
Posted 30 August 2012 - 06:21 AM
lmao i kid i kid, we are still 1.1 here. we offer 7dn .05 up lmao
but some of our modems are wide open and we can get about 20-25mg dn 2-3up
Posted 10 September 2012 - 01:54 AM
My (test) modem at home :) that is one of advantage when you are employed in cable company.
"KOPERNIKUS" Cable Company, Serbia
We are offering speed from 3/0,5 Mbit/s to 50/2 Mbit/s. Four channel bonding in downstream and two (on some place four) channel bonding in upstream. In this year, we are gonna bond everywhere four channel in upstream.
But here, in Serbia we are using Eurodocsis an that give us a lot of free space in return path (5-65 Mhz) in comparation with Docsis (5-42)...
Edited by jetsetwily, 10 September 2012 - 02:07 AM.
Posted 10 September 2012 - 07:32 PM
Because of the way D3 works, you have to run the test a few times to force the modem to open up a bit.
Also, I might note, this stems from my problem with my Trilithic meter: If you're running a Cisco CMTS, and you have 8-channel bonding in place - 4-channel modems will not bond at all. So far, every 4-channel modem I've encountered has failed to bond. Its a problem with the CMTS software it seems. (sending incorrect rcp messages) If I set the CMTS wideband interface back to 4, the 4-channel modem locks right on. So, needless to say, we're only buying 8x4 modems here.
Arris did actually have a workaround for this in their firmware, but it seems motorola and hitron (makers of the trilithic modems) have not clued into this - afaik at this time. If CISCO would fix their CMTS software, that would be the more correct thing to happen, but has anyone tried talking to cisco lately? Theres no way to get to anyone with brains. (or it seems very difficult, anyway)
Edited by Capm, 10 September 2012 - 07:39 PM.
Posted 12 September 2012 - 04:40 AM
Posted 15 September 2012 - 02:21 PM
this is just the difference between doc1 and doc 3
Posted 15 September 2012 - 04:47 PM
Posted 16 September 2012 - 05:02 PM
Posted 23 September 2012 - 04:37 PM
Channel Lock Status Modulation Channel ID Frequency Power SNR Correctables Uncorrectables
1 Locked QAM256 1 783000000 Hz -4.4 dBmV 38.0 dB 30 0
2 Locked QAM256 2 789000000 Hz -4.7 dBmV 37.8 dB 94 0
3 Locked QAM256 3 795000000 Hz -5.2 dBmV 37.1 dB 119 0
4 Locked QAM256 4 801000000 Hz -5.4 dBmV 37.4 dB 251 0
5 Locked QAM256 5 807000000 Hz -6.2 dBmV 36.6 dB 552 0
6 Locked QAM256 6 813000000 Hz -6.0 dBmV 37.1 dB 372 2
7 Not Locked Unknown 0 0 Hz 0.0 dBmV 0.0 dB 0 0
8 Not Locked Unknown 0 0 Hz 0.0 dBmV 0.0 dB 0 0
Upstream Bonded Channels
Channel Lock Status US Channel Type Channel ID Symbol Rate Frequency Power
1 Locked TDMA and ATDMA 10 2560 Ksym/sec 33000000 Hz 32.2 dBmV
2 Locked TDMA and ATDMA 9 2560 Ksym/sec 36500000 Hz 32.2 dBmV
3 Locked TDMA and ATDMA 11 2560 Ksym/sec 29500000 Hz 32.2 dBmV
4 Locked TDMA and ATDMA 12 2560 Ksym/sec 24500000 Hz 32.2 dBmV
what does everyone think besides the upstream power level?
rebooted modem on thursday evening and bam upstream bonding!
Edited by motorola870, 23 September 2012 - 04:39 PM.
Posted 23 September 2012 - 05:28 PM
Posted 23 September 2012 - 07:08 PM
Why the heck are they bonding such small channels? Its a waste of card space.
well I would assume because they are still trying to clean the plant up and also they had 4 upstreams for along time that were 3.2MHz with with QAM16/QAM64 mixed mode on them and they just bonded them to give the modem about 61Mbps to play with for a upstream speed of 5Mbps on the 30/5 and 50/5 tiers. I am betting they might raise the tiers to 30/10 and 50/25 but that is only rumored right now for TWC in markets with competition from fiber optic providers.
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