OOL Tech Check my signals please?

Author	All Replies
quimby @optonline.net	OOL Tech Check my signals please? Are these any good? If not, what steps can I take to improve them? Thanks! SB4100 ------ Frequency 603000000 Hz Locked Signal to Noise Ratio 35 dB QAM 64 Network Access Control Object ON Power Level 0 dBmV The Downstream Power Level reading is a snapshot taken at the time this page was requested. Please Reload/Refresh this Page for a new reading HFC MAC Address 00:04:BD:22:2B:BC Upstream Value Channel ID 4 Frequency 25008000 Hz Ranged Ranging Service ID 152 Symbol Rate 2.560 Msym/s Power Level 58 dBmV
	to forum · permalink · 2003-12-16 14:52:02 ·
Irish Shark Play Like A Champion Today Premium,MVM join:2000-07-29 Las Vegas, NV	Your US signal is at the max. Are you behind any splitters? Any problems with disconnects, packet loss, etc.?
	to forum · permalink · · 2003-12-16 14:54:24 ·
HardwareGeek join:2003-11-15 Brooklyn, NY	reply to quimby those signals look to be good. But I am not 100% sure I have a 5100 and my signals are similar to yours. -- Email/MSN: Michael at hardwaregeeks.comAIM: MikeR35292
	to forum · permalink · · 2003-12-16 14:54:30 ·
Irish Shark Play Like A Champion Today Premium,MVM join:2000-07-29 Las Vegas, NV	said by HardwareGeek : those signals look to be good. But I am not 100% sure I have a 5100 and my signals are similar to yours. The signals (US) is out of spec. Receive: -15dbmV to +15dbmV Transmit: 30dbmV to 55dbmV Carrier/Noise Ratio: >30dB -- "A man who was fond of wine was offered some grapes at dessert after dinner. "Much obliged," he said, pushing the plate aside; "I am not accustomed to take my wine in pills."Jean Anthelme Brillat-Savarin, The Physiology of Taste
	to forum · permalink · · 2003-12-16 14:57:21 ·
HardwareGeek join:2003-11-15 Brooklyn, NY	His power level is 0 that's between the -15 and 15 His SNR is 35 that's above 30. According to your post its >30 last time I checked > meant greater than. And his transmit is just 3dBmv above what it should be. -- Email/MSN: Michael at hardwaregeeks.comAIM: MikeR35292
	to forum · permalink · · 2003-12-16 15:17:28 ·
Irish Shark Play Like A Champion Today Premium,MVM join:2000-07-29 Las Vegas, NV 2 edits	said by HardwareGeek : His power level is 0 that's between the -15 and 15 His SNR is 35 that's above 30. According to your post its >30 last time I checked > meant greater than. And his transmit is just 3dBmv above what it should be. Please learn how to read the signals. His transmit (US) is Power Level 58 dBmV which is out of spec. He is at Max Tranmit on the US.
	to forum · permalink · · 2003-12-16 15:19:57 ·
Irish Shark Play Like A Champion Today Premium,MVM join:2000-07-29 Las Vegas, NV	reply to HardwareGeek To help you some more, here is a snip from Engineer88 to someone with Max Transmit: "lennie678 Downstream power: -4.7 dBmV [DOCSIS limits -15..+15 dbmV] Carrier to noise: 35.6 dB [Normal in 30..38 dB range] Upstream power: 58.0 dBmV [Normal range 30..55 dbmV] HW/SW: HW_REV: 1; VENDOR: Motorola Corporation; BOOTR: 1; SW_REV: SB5100-2.3.1.3-SCM00-NOSH; MODEL: SB5100 Uptime: 0d 0:01:59.00 Status: operational Modems with upstream power of 58.0 dBmV or more are known to have stability problems. You may want to try positioning the modem off the first 2:1 split as the cable enters the house, or give customer service a call to arrange a service visit." Bold added by me. -- "A man who was fond of wine was offered some grapes at dessert after dinner. "Much obliged," he said, pushing the plate aside; "I am not accustomed to take my wine in pills."Jean Anthelme Brillat-Savarin, The Physiology of Taste
	to forum · permalink · · 2003-12-16 15:28:55 ·
HardwareGeek join:2003-11-15 Brooklyn, NY	reply to Irish Shark And that's what I said. His transmit is 3dBmV above what it should be. The max is 55 which according to what you posted is acceptable. And he is at 58. That's 3dBmV -- Email/MSN: Michael at hardwaregeeks.comAIM: MikeR35292
	to forum · permalink · · 2003-12-16 15:30:31 ·
Irish Shark Play Like A Champion Today Premium,MVM join:2000-07-29 Las Vegas, NV	Not going to argue the point. "And his transmit is just 3dBmv above what it should be."
	to forum · permalink · · 2003-12-16 15:34:04 ·
joeschmoe7 join:2003-03-05 1 edit	reply to quimby This is most likely not his problem. The problem is more than likely an unbalanced plant. He could have some water issues or even a bad splitter, but typically with good levels and a >55 tx level would indicate a plant issue. Another thing 55 is not within an acceptable range especially with a postitive fwd level reading. You should only see 50+ transmits due to poor wiring(too many splitter) or if you are fed off of a higher value tap.
	to forum · permalink · · 2003-12-16 15:36:22 ·
Irish Shark Play Like A Champion Today Premium,MVM join:2000-07-29 Las Vegas, NV	said by joeschmoe7 : This is most likely not his problem. The problem is more than likely an unbalanced plant. He could have some water issues or even a bad splitter, but typically with good levels and a >55 tx level would indicate a plant issue. That is correct. Check the splitters (if there are any) and get off the first split. (His problem) If that does not fix it, there is nada that he can do. Call for a Tech visit. (OOL's problem) -- "A man who was fond of wine was offered some grapes at dessert after dinner. "Much obliged," he said, pushing the plate aside; "I am not accustomed to take my wine in pills."Jean Anthelme Brillat-Savarin, The Physiology of Taste
	to forum · permalink · · 2003-12-16 15:39:37 ·
Bichon Premium,MVM join:2002-10-10 Freehold, NJ	reply to quimby Irish is right, 58 is max transmit for an SB4100. As in the worst possible upstream number that model can report. The only thing worse than 58 and a working connection is 58 and a not working connection. Which may happen when the weather warms up. I think Mr. Schmoe nailed it. A maxed upstream with a perfect downstream is probably a Cablevision plant issue.
	to forum · permalink · · 2003-12-16 15:42:00 ·
quimby @optonline.net	reply to quimby Thanks everyone for the quick replies. To try and answer everyones questions, I am coming off the first split of the splitter that came with the OOL kit. I am NOT experiencing any disconnects, except on the news server, but my speeds are not what I feel they should be, or even what they were in the past. There is a Netgear FSV318 on the link as well. Also, my analog (no digital IO) cable TV signals seem a little weak on some stations as well. I'm going to remove the splitter and router later on tonight and try it again and see what happens. I'll keep ya posted.
	to forum · permalink · 2003-12-16 17:38:30 ·
Irish Shark Play Like A Champion Today Premium,MVM join:2000-07-29 Las Vegas, NV	The FVS318 is a 10 megabit WAN port router which will cause a slowdown with that SB4100. However, that is not the problem. If removing/replacing the splitter does not help that US, then there is nothing more that you can do. Place a call to OOL TS and tell them that you have a "Max Transmit" problem. Good Luck. -- "A man who was fond of wine was offered some grapes at dessert after dinner. "Much obliged," he said, pushing the plate aside; "I am not accustomed to take my wine in pills."Jean Anthelme Brillat-Savarin, The Physiology of Taste
	to forum · permalink · · 2003-12-16 17:48:00 ·
SpitefulCrow Insert Witty Tag Here Premium join:2003-06-04 Berkeley, CA	reply to quimby From what I've seen, OOL likes to run the plant out of spec. I've kept a connection for days with barely any errors at 24dB SNR and 19dBmV DS.. although the US is 37dBmV power level. Probably just another unbalanced plant as mentioned above. Any chance of getting someone like E88 to look at the plant for 10567?
	to forum · permalink · · 2003-12-16 21:11:26 ·
joeschmoe7 join:2003-03-05	reply to quimby SpitefulCrow, Your levels are so far off its amazing your modem is working. With a SNR that low you would expect that you would have seriously low levels(-10+). And then you say you have +19 on the downstream, thats completely wrong. In most cases you shouldn't have +19 coming out of the tap and your power level is 37 with a +19, wow.
	to forum · permalink · · 2003-12-17 08:00:16 ·
quimby @optonline.net	reply to Irish Shark I removed the first splitter (ool official one) and connected the Modem 4100 direct to the incoming line and here are my signals: Downstream Value Frequency 603000000 Hz Locked Signal to Noise Ratio 35 dB QAM 64 Network Access Control Object ON Power Level 3 dBmV The Downstream Power Level reading is a snapshot taken at the time this page was requested. Please Reload/Refresh this Page for a new reading HFC MAC Address 00:04:BD:22:2B:BC Upstream Value Channel ID 4 Frequency 25008000 Hz Ranged Ranging Service ID 152 Symbol Rate 2.560 Msym/s Power Level 39 dBmV So what is the verdict? Bad splitter? Something due north off the splitter, TV's (I'm in the basement) ? To be honest my TV pictures are not that great. Both legs off the first splitter say -3.5db out. Any ideas? tia
	to forum · permalink · 2003-12-17 23:04:55 ·
quimby @optonline.net	So now I connect just the splitter and the modem, but no TV's.. Frequency 603000000 Hz Locked Signal to Noise Ratio 35 dB QAM 64 Network Access Control Object ON Power Level 1 dBmV The Downstream Power Level reading is a snapshot taken at the time this page was requested. Please Reload/Refresh this Page for a new reading HFC MAC Address 00:04:BD:22:2B:BC Upstream Value Channel ID 4 Frequency 25008000 Hz Ranged Ranging Service ID 152 Symbol Rate 2.560 Msym/s Power Level 43 dBmV Now I connect the coax that leads to the other TV's: Frequency 603000000 Hz Locked Signal to Noise Ratio 36 dB QAM 64 Network Access Control Object ON Power Level 1 dBmV The Downstream Power Level reading is a snapshot taken at the time this page was requested. Please Reload/Refresh this Page for a new reading HFC MAC Address 00:04:BD:22:2B:BC Upstream Value Channel ID 4 Frequency 25008000 Hz Ranged Ranging Service ID 152 Symbol Rate 2.560 Msym/s Power Level 43 dBmV I refreshed the page of course between measurements. Seems like it is fine now? Any ideas? tia
	to forum · permalink · 2003-12-17 23:22:57 ·
Irish Shark Play Like A Champion Today Premium,MVM join:2000-07-29 Las Vegas, NV 1 edit	Do one more test. Now hook up the TV with the MODEM and splitter. What are the signals now? ___________ It is possible that with all the fooling around with the splitter and coax, you might have found the problem. Either a bad F-connector, loose connection, or a splitter going South. That's why I ask you to do one more test.
	to forum · permalink · · 2003-12-18 12:06:52 ·
quimby @optonline.net	I now have everything hooked up the way it was with all TV's etc. Here are the signals: Downstream Value Frequency 603000000 Hz Locked Signal to Noise Ratio 35 dB QAM 64 Network Access Control Object ON Power Level 1 dBmV The Downstream Power Level reading is a snapshot taken at the time this page was requested. Please Reload/Refresh this Page for a new reading HFC MAC Address 00:04:BD:22:2B:BC Upstream Value Channel ID 4 Frequency 25008000 Hz Ranged Ranging Service ID 152 Symbol Rate 2.560 Msym/s Power Level 43 dBmV Are those signals ok? Strange because nothing was loose or anything so maybe the splitter is flaky. tia
	to forum · permalink · 2003-12-18 13:57:06 ·


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