 EGThe wings of lovePremium
join:2006-11-18
Union, NJ
kudos:9 | reply to gar187er
Re: how can check (upstream,down stream snr) with signal meter said by gar187er:pathtrack.....intranet....
Wasn't asking you gar but they must be an employee (Charter). |
|
 defiantMVM
join:2000-09-04
Monroe, MI
kudos:2 | reply to fhnbjhvn
said by fhnbjhvn :No meter can measure usnr. Only the cmts can.
Not directly.
»instruments.trilithic.com/produc···vp2.html |
|
 gar187erI do this for a living
join:2006-06-24
Dover, DE
kudos:4 | that pulls data from the cmts, and is fairly antiquated....SSR is a much superior option not to mention allows reverse sweep.....
our system just bought jdsu meters to replace out tris, but they still have the SSRs hooked up, and i hope they dont go away....cause they only bought 1 reverse sweep jdsu unit so we can only have 8 nodes hooked up at once.....lame.....not to mention they have yet to buy the web unit....
--
I'm better than you! |
|
defiantMVM
join:2000-09-04
Monroe, MI
kudos:2 | Doesn't communicate with the CMTS, it's a separate device in the hub/headend which does the monitoring.
It was merely meant as an example of test equipment for the return path.
--
Employee of Charter Communications. The views and opinions expressed in the post above may not reflect those of my employer.
|
|
| reply to sharagim1
said by 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
Great.. another contractor out in the field without the proper tools to get the job done. |
|
| reply to rendrenner
Re: how can check (upstream,down stream snr) with signal meter don"t think i can"t get job done , i know for 3 ways for check level, check with pc, ask from dispatch, get all info from smart phone, after active service, and ask comcast tec support.
but some of the location they have realy bad signal(high signal, or low signal)
if i want to get green level , that"s realy hard for call and ask wht"s my level now every time after add spliter or reduce signal by svg 6 or svg9,
meter would be great and you can adjust it faster than other way. |
|
| reply to gar187er
thanks for response, i know how to do home certification, i"m doing every job, but take time at least 3 to 5 min to lock up,
is it possible just conect to the cable coax which is conect to the modem or emta, an then see wht"s my power level for upstream ,down stream, and snr?
same as test signal level in channel 2, it give you +18, or +4 or......,
i can go to the »192.168.100.1 and cjeck the level,
but i realy need to learn this way with meter, if can i catch it fast less than 10 secound would be great. |
|
 CableToolPoorly Representing MYSELF.Premium
join:2004-11-12 | Not that quick.
The meter needs to lock up on the upstream and downstream then sample for errors.
If you know your carriers you can program your meter to just lock on one carrier to test, otherwise I believe they scan until they find a Docsis Carrier to lock on.
I dont think this takes more then 30 secs though unless you are doing it as part of the Home Cert Auto Test.
--
CableTechs.org/"Horrible People with Integrity" |
|
| The 860 doesnt have a home cert feature like the dsam |
|
CableToolPoorly Representing MYSELF.Premium
join:2004-11-12 | Uh.. yeah. It kinda does. |
|
|
|
| reply to sharagim1
Call dispatch and have them pull the modem up in scout. Usually, only maintenance techs (bucket truck guys) or noc techs have access to turning pathtrack broadcast on.
We used to have a home brew cacti server monitoring every node and then we sorted by interface on the cmts. |
|
| could also have someone look at how the meter is connecting as well in scout. Use that all the time. Pull up the modem in scout, take note of the numbers. then hook the meter to the same outlet. Check the meters connection in scout. |
|
| reply to sharagim1
A snapshot of upstream SNR isn't really gonna tell you much. It can fluctuate quite a bit from minute to minute and can be an issue anywhere on the node, or even another node if it's sharing cards at the CMTS. Really needs to be monitored over a long period of time, analyzing all the modems on the node. If it's consistently bad, THEN I would start at the node and track down the source, or more likely sources. If you're ingress check is clean, the issue causing poor US SNR could be miles from your customer. As far as being an install tech there's really not much you can do with it. Just make sure your drop and house are clean. |
|
| reply to sharagim1
said by sharagim1:but i realy need to learn this way with meter, if can i catch it fast less than 10 secound would be great.
Great! Based on the comments above I can't help but feel here's another contractor who gets paid by each call does a piss poor job and alienating customers by taking short cuts. In the past most contractors I dealt with know a great deal about cable but are computer illiterate. |
|
| reply to gar187er
Been working with DSAMs here for awhile. I Worked with some of the boys from your side of the bay and I loved the Trialithics. Wish we were getting them instead of the other way around. DSAM wouldn't be so bad if it weren't for the screen size.
We have the 8 port return sweep equipment. Luckily in the two areas I work we have 4 techs working out of each OTN. We label 2 of the jumpers with each tech's name so they don't get TOO out of hand. Fortunately some of the techs have keys to the OTN if we need to change them. Maybe someday I'll have one....lol |
|
| reply to Floppy
said by Floppy:said by sharagim1:but i realy need to learn this way with meter, if can i catch it fast less than 10 secound would be great.
Great! Based on the comments above I can't help but feel here's another contractor who gets paid by each call does a piss poor job and alienating customers by taking short cuts. In the past most contractors I dealt with know a great deal about cable but are computer illiterate. said by sharagim1:but take time at least 3 to 5 min to lock up Actually I see it as a contractor trying to learn his equipment, and find the test that gives him the data needed quickly. We run a home cert test like he mentions and it takes around 3 minutes. This gets run once per job at the tap.
The meters we use also have tests that give us the signal strength and upstream tx on the modem carriers, and not a sampling of video channels. This takes less than a minute. Guess what test I run at the ground block & modem? |
|
gar187erI do this for a living
join:2006-06-24
Dover, DE
kudos:4 | reply to SeaSeaTee5
10 techs, no keys to HE here.....it sucks...
--
I'm better than you! |
|
