  bbeesley VIP join:2003-08-07 Las Vegas, NV
| reply to dvd536 Re: [AZ] Cox, why oh why oh why oh why
said by dvd536 :said by James_RI :If you are getting noise on 579MHz, then it can be many of things that can cause noise. Actually my SNR on this freq is better than it was on the other one and the speeds are good[when its working] SNR will only tell you if you if the noise floor is too high, it won't indicate if you have transient noise which can adversely affect speeds. To find this, a tech is going to have to look at your modem logs from incrementing uncorrectables or T3s or even better, hook up a meter at your location |
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  dvd536 as Mr. Pink as they come Premium join:2001-04-27 Phoenix, AZ
| reply to James_RI said by James_RI :If you are getting noise on 579MHz, then it can be many of things that can cause noise. Actually my SNR on this freq is better than it was on the other one and the speeds are good[when its working] -- When I gez aju zavateh na nalechoo more new yonooz tonigh molinigh - Ken Lee |
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 James_RI
join:2008-07-12 Foster, RI
1 edit | reply to dvd536 If you are getting noise on 579MHz, then it can be many of things that can cause noise. The cause is usually the customer's wiring in most of the cases. Old wire, bad splitter, loose fittings, equipment can cause it, also it could be the drop. It can also be on the plant end of the wiring, someone could be feeding back into the system and then everyone on that node could be affected by that. I would have a tech come out to check your wiring, get the wiring plan to cover yourself just in case some of your wiring is old and needs to be replaced. If the noise is coming from the plant, then a report should be filed by the Tech so the proper people can come out to find the noise.
And the last thing i can think of, it could be coming from another source and leaking into the system, if that is the case and nothing can be done, then usually its up to your local system to change the internet frequency to another one. |
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 rainabba Premium join:2009-07-01 Chandler, AZ
·Cox HSI
| reply to dvd536 Ok, but here's my point. If most people with cox are on 579, that would mean absolutely nothing. Now if you could say that most people on 579 is complaining, that would have significance. Based on what's been said so far, I don't think people making the claim that 579 is bad, have enough information to make that claim.
I'm not saying the claims aren't true, but basic on the evidence I've seen so far, and logic; that conclusion can't be drawn. A simple Venn diagramm can demonstrate my point. |
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  dvd536 as Mr. Pink as they come Premium join:2001-04-27 Phoenix, AZ
| reply to rainabba 573 was where i was moved when i got noisy about the every 30sec dropouts and the 20 clicks to get a link to load and had perfect service thereafter i was moved. this move sounds like an effort to extort another $5/mo for the wiring plan. sorry this boy don't play that way. - look at all the posts from people in az griping about the dropouts that post their modem levels. just about EVERYONE complaining is on 579! -- When I gez aju zavateh na nalechoo more new yonooz tonigh molinigh - Ken Lee |
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 rainabba Premium join:2009-07-01 Chandler, AZ
·Cox HSI
| reply to Fubar Wish I knew what frequency I was on while in Ahwatukee, but I was seeing 28Mb/2.5Mb nearly every time I tested with Speedtest.net. Didn't know about testmy.net then. Right now I'm on 573000000 Hz and getting 18.3/5.6 with PremierPlus and the 6120, and only 8.9/3.9 with testmy.net.
I'm waiting for one of the Cox Techs on this forum to look into things, but I've had 2 trucks out this week and both say things are fine here.
That said, what you're seeing on the forums may be simple correlation. Once one person said it, other's likely jumped on the idea and it's gaining momentum. Unless the majority of people on that frequency are seeing the same, you can't conclude that it's cause/effect. |
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  Fubar
join:2001-02-20 Phoenix, AZ | reply to dvd536 I have been on 579 forever with no problems....
Frequency 579000000 Hz Signal To Noise Ratio 36.5 dB Power Level -3.0 dBmV
I have preferred |
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  Vectr
@cox.net | reply to dvd536 I just checked the modem, It is using 579000000 Hz only,
Acquire Downstream Channel 579000000 Hz Locked |
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 kramac24
join:2006-03-01 Chandler, AZ | reply to dvd536 I just checked my Modem, it reads 579000000 Hz only.
"Acquire Downstream Channel 579000000 Hz Locked" |
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 jsmiddleton4
join:2003-11-13 Glendale, AZ
1 edit | reply to bbeesley Thanks bb. Just that "something" is going on in AZ. There are several threads from various locations with multiple users in those threads all with the same symptom. Serious slow down in the evening hours and some slight instability. Not serious instability. Wondering IF all of us have been switched to this particular frequency?
Something is not right. Hard to believe ALL of us have issues in our homes and need a truck roll. |
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  bbeesley VIP join:2003-08-07 Las Vegas, NV
| reply to jsmiddleton4 said by jsmiddleton4 :What are the symptoms one may see if having issues due to this frequency? What will we see? most likely others will observe nothing - if there are issues with a specific frequency they are normally noise or signal issues that are localized - usually at the house
For instance, a bad or kinked cable can introduce impairments specific to one channel or a range of channels
normally, the cable modem will attempt to negotiate the best options with the CMTS but this does always get the 'cleanest' frequency due to a number of factors.
It is a common practice when troubleshooting to force a modem to another frequency if it is realized that one is less desirable or may be the cause of impairments in order to quickly restore service for the customer but this should not preclude fixing the problem over the long term.
for the OP - I would strongly suggest requesting a truck roll, most of the time the cause of the impairment is within the house and this should be thoroughly checked with a meter to ensure that signal is good on this frequency - make sure the tech understands that you have observed and can demonstrate poor performance on the specific frequency as this can help them find what is likely going to be a very elusive but correctable issue. |
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 jsmiddleton4
join:2003-11-13 Glendale, AZ | reply to dvd536 What are the symptoms one may see if having issues due to this frequency? My modem has been reset to Channel 2 and this frequency. What will we see? |
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  dvd536 as Mr. Pink as they come Premium join:2001-04-27 Phoenix, AZ
| Did you move me back to the dreaded 579000000 Hz frequency!!!!!! Aaaaargh! is this a push to get those that know there are issues on 579000000 Hz to take premiere plus? FWIW speeds are good when its working. -- When I gez aju zavateh na nalechoo more new yonooz tonigh molinigh - Ken Lee |
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