| how can check (upstream,down stream snr) with signal meter i do have signal meter,(comcast meter), but i just wondering ,how can i check line level (upstream,downstream,snr)with this meter?
i hope some of comcast tec see my questions and response to me, or any other people who knows it, thanks for all your respons. |
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| try calling your local office. maybe they can walk you through some things.
you might even ask them if any techs lost a meter? |
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 gar187erI do this for a living
join:2006-06-24
Dover, DE
kudos:4 | reply to sharagim1
how do you have a "comcast meter" and not know how to use it?
note: there are about 12 common meters used this day in age.
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I'm better than you! |
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gar187erI do this for a living
join:2006-06-24
Dover, DE
kudos:4 | reply to obckilroy
said by obckilroy:try calling your local office. maybe they can walk you through some things.
you might even ask them if any techs lost a meter?
id start with the second 
call center people have zero idea what a meter even looks like...
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I'm better than you! |
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| reply to sharagim1
i know how yo use it, but i don"t know how to check the upstream, downstream, snr. you have computer , do you know all the stuff of your omputer? |
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| Just curious, what's the brand and model number of the meter? |
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 CableToolPoorly Representing MYSELF.Premium
join:2004-11-12 | reply to sharagim1
said by sharagim1:i know how yo use it, but i don"t know how to check the upstream, downstream, snr. you have computer , do you know all the stuff of your omputer?
You dont have to know how the meter is made.. but that is basically 50% of what you would use a meter for.. and if you do not know how to do that- the question kind of remains.. how did you get the meter?
Or- What kind is it. There are different ways to get levels based on what meter it is.
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CableTechs.org/"Horrible People with Integrity" |
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| reply to sharagim1
860 dspi
my job is satellite installation. and just last week i was hired in of the cable compony which hast contract with comcast.
too many time ask them how can i check upstream,down stream and snr with this meter(860 dspi) but for different exuse they din"t show me?
and also i search online for learn it , but i couldn"t find any instruction,
i hope you guys able to lean me with instruction, would be great, and always i remeber it . thanks guys |
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| reply to sharagim1
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 defiantMVM
join:2000-09-04
Monroe, MI
kudos:2 | reply to sharagim1
Capabilities available to you may depend on the firmware installed and what features were purchased and enabled on the device. For DOCSIS, there should be a "CM" module you can use. MER (media error rate) and BER (bit error rate) modules help measure the quality of a QAM carrier and the encoded data. RSVP is another module that can be used to do upstream evaluations, but configuring requires information provided by the cable co for a given system, provided they have the necessary gear in the headend to support RSVP.
I think, at least, a basic understanding of how an HFC network actually operates would help tremendously, rather than just knowing how to access and use these features.
Disclaimer: I am not a field tech, nor have I ever been. The information above is opinion/knowledge I've gained working with field techs and other sources over the last 6+ years. Much more qualified folks like CableTool  and gar187er would be able to provide more accurate and beneficial information than I. I just wanted to post some basic information based on my knowledge and experiences, since I'm up a 3 AM with my sick son.
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Employee of Charter Communications. The views and opinions expressed in the post above may not reflect those of my employer.
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gar187erI do this for a living
join:2006-06-24
Dover, DE
kudos:4 | reply to sharagim1
said by sharagim1:i know how yo use it, but i don"t know how to check the upstream, downstream, snr. you have computer , do you know all the stuff of your omputer?
yes i do, ive built my computers since 1999, and have been using SLMs since 2005
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I'm better than you! |
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gar187erI do this for a living
join:2006-06-24
Dover, DE
kudos:4 | reply to sharagim1
when you power it on, the first couple options are what you want...not hiding.....level, qam....option 5 is to lock your modem.....but you need to know the channel plan....so youll have to scan and get the meter to learn it...
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I'm better than you! |
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 EGThe wings of lovePremium
join:2006-11-18
Union, NJ
kudos:9 | reply to defiant
said by defiant: MER (media error rate)
FWIW, MER = Modulation Error Ratio. |
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defiantMVM
join:2000-09-04
Monroe, MI
kudos:2 | close enough  |
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| reply to sharagim1
does anyone's meter pull the USNR? we get ours off a website, just curious. |
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defiantMVM
join:2000-09-04
Monroe, MI
kudos:2 | Via RSVP, if I'm not mistaken. I believe it's a broader measurement of the entire return path, not just what the CMTS is calculating.
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Employee of Charter Communications. The views and opinions expressed in the post above may not reflect those of my employer.
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| reply to krommulent
No meter can measure usnr. Only the cmts can. |
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EGThe wings of lovePremium
join:2006-11-18
Union, NJ
kudos:9 | reply to krommulent
said by krommulent:does anyone's meter pull the USNR? we get ours off a website, just curious.
For curiosity's sake please, what "site" might that be ? |
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gar187erI do this for a living
join:2006-06-24
Dover, DE
kudos:4 | pathtrack.....intranet.... |
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Reviews:
 ·Charter
| reply to sharagim1
we had the sencore rep in our office and he said they were working on a way to read it on the meter. where that went is beyond me, so long as the meter's mac is provisioned on the cmts i see no reason why it's impossible. easy or cheap may be another story. |
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