ROM-DOS Posted January 25, 2005 CID Share Posted January 25, 2005 MOTOROLA's SURF board Configuration Manager http://192.168.100.1/ Downstream Frequency 555000000 Hz Upstream Frequency 29000000 Hz Quote Link to comment Share on other sites More sharing options...
nachos Posted January 31, 2005 CID Share Posted January 31, 2005 are these target values? Quote Link to comment Share on other sites More sharing options...
reno Posted January 31, 2005 CID Share Posted January 31, 2005 look at mine Frequency 699000000 Hz Locked And youd think id get more speed. Quote Link to comment Share on other sites More sharing options...
nachos Posted January 31, 2005 CID Share Posted January 31, 2005 mine is 591 down and 3099 up( yea just add all the zeros to make it right)) and my connection sucks, Quote Link to comment Share on other sites More sharing options...
dn0 Posted February 1, 2005 CID Share Posted February 1, 2005 Those values are just the center frequency of the downstream and upstream carriers that your isp is using. i.e. 555000000 = 555MHz (channel 79 standard) and 29000000 = 29 MHz (the upstream frequency) They are not the data rates or caps of any kind. Quote Link to comment Share on other sites More sharing options...
nachos Posted February 1, 2005 CID Share Posted February 1, 2005 Thats kind of what I figured, I've just been having tons of issues with my connection in the last couple weeks. They are suppose to send another guy to check out the line for the 3rd time in a week, maybe this one will actually know what he is doing. Quote Link to comment Share on other sites More sharing options...
Swimmer Posted February 1, 2005 CID Share Posted February 1, 2005 messing with comcast is a pain in the ass.. I had some many techs out there before they installed the signal booster.. My signal was too weak to transmit things... They would say that they are coming out and then never show up.. Finally I got a manager that told me if they didnt show up i would be refunded for 6 months of access.. Of course they showed up.. Either way just be nice and they will fix you up.. Quote Link to comment Share on other sites More sharing options...
ice Posted February 1, 2005 CID Share Posted February 1, 2005 I miss my SB3100D. Only decent modem I had. I'll have one again soon enough though. 3COM sucks ass. Quote Link to comment Share on other sites More sharing options...
dn0 Posted February 1, 2005 CID Share Posted February 1, 2005 nachos- Under that Moto configuration, under "Signal", what is your downsteam power level, and your upsteam power level? Quote Link to comment Share on other sites More sharing options...
nachos Posted February 1, 2005 CID Share Posted February 1, 2005 well guy I have been talking too is super nice and knowlegable...he complains how bad the field guys are so there is suppose to be a guy from atlanta coming either tomorrow or wednesday (4hr drive to where I'm at) This is after the field supervisor came out to fix it, ofcourse he says it fixed when he leaves and I'm showing him pings and traceroutes that show latency anywhere from 20-500 by the 4th hop. if it matters its a sb5120 the down power = 0 dBmV the up power = 41 dBmV Quote Link to comment Share on other sites More sharing options...
REV0LUTI0NIZED Posted February 1, 2005 CID Share Posted February 1, 2005 Damn you must have a good Modem to get 0dBmV on your down power lever. You lucky man... Quote Link to comment Share on other sites More sharing options...
nachos Posted February 1, 2005 CID Share Posted February 1, 2005 so I'm screwed? Quote Link to comment Share on other sites More sharing options...
REV0LUTI0NIZED Posted February 1, 2005 CID Share Posted February 1, 2005 Screwed for what Quote Link to comment Share on other sites More sharing options...
nachos Posted February 1, 2005 CID Share Posted February 1, 2005 a decent connection? or is the down power suppose to be 0? I'm confused what that really means Quote Link to comment Share on other sites More sharing options...
REV0LUTI0NIZED Posted February 1, 2005 CID Share Posted February 1, 2005 Is just a good range for your down connection. Meaning good download, that its Stable. Im so confused right now. Quote Link to comment Share on other sites More sharing options...
REV0LUTI0NIZED Posted February 1, 2005 CID Share Posted February 1, 2005 That your Internets download connection is responding good to the server of your Co. Quote Link to comment Share on other sites More sharing options...
nachos Posted February 1, 2005 CID Share Posted February 1, 2005 lol, sorry didn't have a clue what that number meant. All I know is my internet has terrible latency issues. Quote Link to comment Share on other sites More sharing options...
REV0LUTI0NIZED Posted February 1, 2005 CID Share Posted February 1, 2005 I would tell you in what the exact number your power level should be for your upload but I forgot. But I do know your download power level should be around 0 and 5. And I think your upload power level should be 45 to 50, but I'm not sure. My Download Power Level is -3 My Upload Power Level is in the 50 and 55's My Upload Power Level is so high, Because a tech from Cox Communication gave me this filter looking thing called "SBA-3 SUB BAND ATTENUATOR", He gave me a choice of SBA-3 that I have and a SBA-9. He told me that the SBA-3 was a better one, because the SBA-9 would be giving me Power Level around 55 - 60 or 65 and it would be kicking me off the internet. Which I think was a Big Fat Lie. But my dumb a** believed him and got the SBA-3 now I feel disappointed for not getting the SBA-9. Heres A Pic of The SBA-3 Quote Link to comment Share on other sites More sharing options...
nachos Posted February 1, 2005 CID Share Posted February 1, 2005 well at one point last week my upstream was at 59 and I couldn't stay connected to the net, so I don't think he was lying on that point. I'll be sure to bring that piece up tomorrow when I talk to the guy to see if it will help fix my situation. Quote Link to comment Share on other sites More sharing options...
dn0 Posted February 1, 2005 CID Share Posted February 1, 2005 Definitely bring that up, if your fluctuating from 41dBmv on up 59 dBmv on return power, then there is something going on. They will usually only fluctuate a couple dB with temperature swings outside, but not 18 dB. It could be anywhere, but you could check the obvious things like your connectors, make sure nothing is loose. Quote Link to comment Share on other sites More sharing options...
nachos Posted February 1, 2005 CID Share Posted February 1, 2005 well that was what it was before the first tech guy came out,, between him and his supervisor it has gone from 59-41 in the two visits from them, it hasn't been constantly flucuating, they just keep changing it each time they come out. They now think its the line from my modem to the node. I now have serious doubts if they will ever fix it, starting to really wish I had a phone line so I could get dsl at this point. yea the guy I have been talking to mentioned that it will flucuate, but only by 6% Quote Link to comment Share on other sites More sharing options...
nachos Posted February 3, 2005 CID Share Posted February 3, 2005 ofcourse they thought it might be a bad modem, went and got a new one today, SAME problem of packet loss and latency issues. Plus now I can't login to the modem and see the stats, is there a different way other than just 192.168.100.1? Quote Link to comment Share on other sites More sharing options...
organ_shifter Posted February 15, 2005 CID Share Posted February 15, 2005 When I connect my SB4200, I can't reach my advertised speeds. I can't seem to get past 4Mbps down. I'm wondering if it has something to do with my downstream powerlevel. I'm not completely sure, but I don't think - 8 dBmV is very good. The upload speeds seem to be fine on all tests. As soon as I connect my Scientific Atlanta DPC2100 Series modem, I get great speeds both ways. What's the deal? I posted a pic for reference. EDIT: What happened to the auto resizing of attached images? Looks huge Quote Link to comment Share on other sites More sharing options...
netmasta Posted February 15, 2005 CID Share Posted February 15, 2005 I have the SB4220, and it says that the power level should be between -15dBmV - 15dBmv. This is a link to the SB4200 data sheet: http://broadband.motorola.com/modem/SB4200.pdf It's a PDF file. The main page for that modem: tml#datasheet'>http://broadband.motorola.com/noflash/sb4200.h tml#datasheet Quote Link to comment Share on other sites More sharing options...
organ_shifter Posted February 15, 2005 CID Share Posted February 15, 2005 Thxz netmasta. It's crazy though. My levels seem to be ok. I just don't understand why it won't get past 4Mbps. DOWNSTREAM Demodulation . . . . . . . . . . . . . . . . . . . . . . . . 64 or 256 QAM Maximum Data Rate* . . . . . . . . . . . . . . . . . . . 38 Mbps Bandwidth. . . . . . . . . . . . . . . . . . . . . . . . . . . 6 MHz Symbol Rate . . . . . . . . . . . . . . . . . . . . . . . . . 64 QAM 5.069 Msym/s Symbol Rate . . . . . . . . . . . . . . . . . . . . . . . . . 256 QAM 5.361 Msym/s Operating Level Range. . . . . . . . . . . . . . . . . . -15 to +15 dBmV Input Impedance. . . . . . . . . . . . . . . . . . . . . . 75 Ω (nominal) Frequency Range. . . . . . . . . . . . . . . . . . . . . . 88 to 860 MHz UPSTREAM Modulation . . . . . . . . . . . . . . . . . . . . . . . . . . 16 QAM or QPSK Maximum Data Rate . . . . . . . . . . . . . . . . . . . 10 Mbps Bandwidth. . . . . . . . . . . . . . . . . . . . . . . . . . . 200 KHz, 400 KHz, 800 KHz, . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.6 MHz, 3.2 MHz Symbol Rates. . . . . . . . . . . . . . . . . . . . . . . . . 160, 320, 640, 1280 and . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2560 ksym/s Operating Level Range. . . . . . . . . . . . . . . . . . +8 to +55 dBmV (16QAM) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .+8 to +58 dBmV (QPSK) Output Impedance . . . . . . . . . . . . . . . . . . . . 75 Ω (nominal) Frequency Range. . . . . . . . . . . . . . . . . . . . . . 5 to 42 MHz (edge to edge) EDIT: Just found this here on the site. Does this mean that the SB4200 could fall into that catagory and won't get advertised speeds? If you're using Comcast: Modem Quote Link to comment Share on other sites More sharing options...
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