Reviews:
 ·Cox HSI
| [RI] How do these levels look? Using a dpc3010 on Ultimate package. Win 7 box, all updates,
Bootloader Revision: 2.3.0_R1
Current Software Revision: DPC3010-v302r12901-110516a-COX
Firmware Name: dpc3010-v302r12901-110516a-COX.bin
Firmware Build Time: May 16 2011 17:09:15
Cable Modem Status: Operational
Power Level: Signal to Noise Ratio:
Channel 1: -3.4 dBmV 37.9 dB
Channel 2: -2.9 dBmV 36.6 dB
Channel 3: -4.9 dBmV 36.1 dB
Channel 4: -6.6 dBmV 34.4 dB
Channel 5: -5.6 dBmV 35.6 dB
Channel 6: 0.0 dBmV 0.0 dB
Channel 7: 0.0 dBmV 0.0 dB
Channel 8: 0.0 dBmV 0.0 dB
Power Level:
Channel 1: 39.7 dBmV |
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 dvd536as Mr. Pink as they comePremium
join:2001-04-27
Phoenix, AZ
kudos:4 | Channel 4 and 5 SNR is low. got any splitters you can lose to bring up those power levels on downstream.
upstream power looks good. |
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| no, cant remove any splitters. |
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 Irish SharkPlay Like A Champion TodayPremium,MVM
join:2000-07-29
Las Vegas, NV
kudos:3 | The levels are fine. A few tenths of a dB is not significant and and it really is not going to affect your performance. Now, if the SNR was 28dB that is another story.
Are you just curious or are you having any issues?
See here »Cox HSI Forum FAQ »What should my modem signal levels be?
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"You can observe a lot by watching". Yogi Berra |
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quatrixPremium
join:2005-02-11
Davie, FL
kudos:2 | reply to dvd536
said by dvd536:Channel 4 and 5 SNR is low. 34 - 36 isn't low. This site's own FAQ says 30 minimum and 33 recommended. |
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Reviews:
·Cox HSI
| said by quatrix:said by dvd536:Channel 4 and 5 SNR is low. 34 - 36 isn't low. This site's own FAQ says 30 minimum and 33 recommended. Also we can't tell if there is two different set of channel frequencys, because two of the channels are right around -3db for power levels, and the 3 other channels are -5db or above. So there is a chance that's the reason for the few DB's of change with a few of the channel readings. So as long as your connection is fine, I see no problem with how your signals are atm. |
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dvd536as Mr. Pink as they comePremium
join:2001-04-27
Phoenix, AZ
kudos:4 | reply to quatrix
said by quatrix:said by dvd536:Channel 4 and 5 SNR is low. 34 - 36 isn't low. This site's own FAQ says 30 minimum and 33 recommended. Thats for D2, not D3. ask any tech here what they like to see. |
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| reply to quatrix
»Cox HSI Forum FAQ »What should my modem signal levels be? |
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Irish SharkPlay Like A Champion TodayPremium,MVM
join:2000-07-29
Las Vegas, NV
kudos:3 | reply to dvd536
said by dvd536:said by quatrix:said by dvd536:Channel 4 and 5 SNR is low. 34 - 36 isn't low. This site's own FAQ says 30 minimum and 33 recommended. Thats for D2, not D3. ask any tech here what they like to see. The link that I provided above has both D2 and D3 pegged at 35dB for the SNR . No?
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"You can observe a lot by watching". Yogi Berra |
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 Optimus2357Premium
join:2010-11-21
West Warwick, RI
kudos:1 | reply to codydog
So yea, I know this might be a silly question but Codydog, what is the actual symptom? Like are you asking because something seems wrong? (slow, lag, streaming, VOIP, etc) Or are you just asking about your levels in general? If so, then the easy answer might be "not bad". Not 100% over the stars great or anything, but within specs and nothing obviously wrong. |
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| seems to be a bit laggy and not as responsive as it would seem to be
Plus the numbers moved a bit in the last week |
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dvd536as Mr. Pink as they comePremium
join:2001-04-27
Phoenix, AZ
kudos:4 | reply to Irish Shark
said by Irish Shark:The link that I provided above has both D2 and D3 pegged at 35dB for the SNR . No?
I don't know how good you are at math but 34.4 is lower than 35. 'nuff said. |
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Optimus2357Premium
join:2010-11-21
West Warwick, RI
kudos:1 | Hmm, even though you aren't wrong, I don't think a difference of .6 SNR on a couple channels are going to make or break a connection. Maybe if we saw uncorrectables, but even then. A lower Rx will naturally have lower SNR all things considered equal.
Cory, could you, or would you even want to, go into specifics? Are you talking about when your first make a site request? Load times on streaming? Game lag? Download speeds? Have any capacity tests or ping logs to compare? I know you basically just wanted to know good or bad, but when dealing with gray, you need to look at the big picture. |
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Irish SharkPlay Like A Champion TodayPremium,MVM
join:2000-07-29
Las Vegas, NV
kudos:3 | reply to dvd536
said by dvd536:said by Irish Shark:The link that I provided above has both D2 and D3 pegged at 35dB for the SNR . No?
I don't know how good you are at math but 34.4 is lower than 35. 'nuff said. Go up a little bit and read my first post in this thread.
'nuf said. 
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"You can observe a lot by watching". Yogi Berra |
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dvd536as Mr. Pink as they comePremium
join:2001-04-27
Phoenix, AZ
kudos:4 | said by Irish Shark:said by dvd536:said by Irish Shark:The link that I provided above has both D2 and D3 pegged at 35dB for the SNR . No?
I don't know how good you are at math but 34.4 is lower than 35. 'nuff said. Go up a little bit and read my first post in this thread. 'nuf said. I read it and a tenth of a dbmv could be the difference between if you lose sync or not. |
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Reviews:
·Cox HSI
| reply to Optimus2357
I use some steady data streams during the day, so I'm trying to see if its my software which uses the data or Cox. Having used the same and similar software, it just 'felt' laggy. I know that not really scientific, but more a qualitative assessment.
I was just fishing to see what people thought of the levels. I seem to be getting 5 downstream channels, versus 4 froma week or so ago.
Trying to eliminate variables to make sure that I'm making any improvements I can on my end. |
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Irish SharkPlay Like A Champion TodayPremium,MVM
join:2000-07-29
Las Vegas, NV
kudos:3
1 edit | reply to dvd536
said by dvd536:I read it and a tenth of a dbmv could be the difference between if you lose sync or not.
You gotta be joking me. A tenth of a dB will not even be a blimp on the radar. The readings that you see in your MODEM are estimates. They are not actual readings. The MODEM is not a signal measurement tool.
Even some of the tools that Cox uses in the field are not accurate to see a tenth of a dB; the resolution is just not there.
Also the SNR is measured in dB and not dBmV - that is what we are discussing - SNR.
No need to carry this any further as you just don't get it.
»homepage.ntlworld.com/robin.d.h.···nal.html
»www.wikihow.com/Measure-Cable-Si···Strength
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"You can observe a lot by watching". Yogi Berra |
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dvd536as Mr. Pink as they comePremium
join:2001-04-27
Phoenix, AZ
kudos:4 | said by Irish Shark:said by dvd536:I read it and a tenth of a dbmv could be the difference between if you lose sync or not.
You gotta be joking me. A tenth of a dB will not even be a blimp on the radar. The readings that you see in your MODEM are estimates. They are not actual readings. The MODEM is not a signal measurement tool. Even some of the tools that Cox uses in the field are not accurate to see a tenth of a dB; the resolution is just not there. Also the SNR is measured in dB and not dBmV - that is what we are discussing - SNR. No need to carry this any further as you just don't get it. » homepage.ntlworld.com/robin.d.h.···nal.html» www.wikihow.com/Measure-Cable-Si···Strength The fact you don't get 34.anything is less than 35 boggles my mind. post every link on the net but that doesn't make 34.something higher than 35!
since i don't get it, no reason to reply to this.
G'day mate |
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