Line Ready for New Tiers?

Darknessrise · ‎07-10-2012

With all the talk about the new tiers I was wondering if my line would be able to support the new profiles if/when they come and deploy vectoring/pair bonding to increase speeds. Would pair bonding cause issues at my distance if they ever try to begin using it on short distances? VRAD is on our lawn along with the other equipment. Line comes from the same spot the VRAD is fed off of. Our RG is fed with coax and had service for 4 years now. We've only replaced the RG so far with nothing else.

BeeBeeSA · ‎06-26-2009

I would say you can't get a much better bit loading graph than that!! You should be ready for any new upgrades.

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Darknessrise · ‎07-10-2012

Thanks for responding. Do you think my noise margin will be a little too weak when higher profiles come? I'm seeing people at 23 dB or so at longer distances :/. Those same people also have higher max rates than me.

JefferMC · ‎11-16-2009

Your max rate looks good, but your upstream graph looks goofy.

Darknessrise · ‎07-10-2012

I saw that too. Why is the downstream pretty nice but the upstream all butchered ?

SomeJoe7777 · ‎01-30-2008

The 3801HGV and i3812V can mask line problems in the download bands because they allocate reserve bits, whereas the 3800HGV-B and 3600HGV do not.

Because of this, the upstream band can tell you a bit more about potential line difficulties on 3801 and 3812 installations.

JefferMC · ‎11-16-2009

It probably means that there is a source of reflection fairly close to the RG, where its power is high enough to have its reflections seen, but far away from the VRAD, where the reflections are too weak to show up in the classic pattern in the downstream. This is a wild SWAG on my part.

Depending on how the RG is fed from the NID, I could offer intelligent suggestions on what it might be. I will offer that I'll bet the RG is fed via the house telephone wiring.

Edit: Take SomeJoe7777's answer as much more likely than mine.

Darknessrise · ‎07-10-2012

RG is fed by coax. We supposedly have our line distance masked. Line comes from the same spot where the VRAD is. I would be 20ft from the VRAD. Even if the line ran around the town it would put me wayyyy above 700ft which would be impossible. My line would have to go underground from the VRAD up the pole around the neighborhood back down the same pole and underground again near the same spot.I would be at 1.3k feet + if that happened. The other VRAD on our road is only 250 feet away too. The one 20ft away are the normal sized ones and the one at 250ft is pole mounted. I'm too close to the VRAD on both of them .

Maybe this will help, this was from about 5 or so months ago when I still had my 3800.

REMEMBER, THIS IS THE 3800 AND NOT MY CURRENT SETUP. 3801 bitloading/stats are under the 3800's to compare.

JefferMC · ‎11-16-2009

Sounds like they put an attenuator on your line due to the short distance. Maybe that's causing this?

Coax fed, huh? Single piece of coax from the BALUN at the NID to your RG, or is there a barrel connector or diplexor involved somewhere? If you use wall plates, then there's at least one barrel connector at the wall plate.

Darknessrise · ‎07-10-2012

There's a diplexer and there's no wall plates involved.

JefferMC · ‎11-16-2009

Are all the plugs on your diplexor connected to a cable that terminates in either the RG, the BALUN at the NID, an STB or DVR, i.e. no open ends?

If not, would you be interested in temporarily replacing the diplexor with a simple barrell conector and rebooting your RG then reshooting your bitloading graph? Obviously this means your TV's will not be working while you're doing this, and you likely should reboot the RG again after you put it back.

Don't forget how the diplexer was wired, though. Need to put it back just like you found it, and be sure the connections are tight.

Darknessrise · ‎07-10-2012

I believe there's no open ends.

I don't have any spare connectors .

When we originally got installed it was a quick job to be honest. They put the RG as closest to the NID as they possibly could. They pulled new coax(or reused, I cannot remember) along with a phone line through the floor. The RG was placed in a corner by our non DVR in a very cramped space. There's barely enough room for the battery backup in the corner. Behind the RG is just a mess of coax/extra phone line wire. They also installed our RG on the opposite side of everything internet important. Along with that they didn't replace faulty RG-59 that was beginning to cause problems later on.

JefferMC · ‎11-16-2009

If the cable will reach, you could just disconnect the cable from the NID to the diplexor at the diplexor and connect it directly to the RG (where you disconnect the cable coming from the diplexor).

If the funny shapes go away when you do this, then the cause is in the diplexor/house coax runs (or the piece of coax from the RG to the diplexor. If they don't then it's something else.

Darknessrise · ‎07-10-2012

That would be hard to do . Diplexer is half way up the wall and the wire only extends that far lol (Wire drops down).

I blame AT&T

I cannot remember if the coax looping around in a ton of circles on the wall is for our Comcast or AT&T line .

I would say the diplexer may be beginning to go bad though after 4 years. I remember before we replaced our 3800(It began constantly losing sync) HPNA used to drop a lot for random TVs. The 3801 probably covered that up too lol.

To be honest I would rather get the RG moved to a spot where it should have been lol. A person to come move it would cost a lot though :/.

Darknessrise · ‎07-10-2012

I tried to plug my RG-11 into my gateway and force my gateway to use it. It did as I expected, not work due to it just being the phone line. I'm curious though, is this U-verse realtime distance real or just borked since I never really did anything? I'm guessing borked .

Oh and lately, my stats have been going up very slowly each day for some reason.

JefferMC · ‎11-16-2009

You'd have to move the signal from the NID off the Coax onto your house telephone wiring to make the RJ11 jack work for your RG.

Darknessrise · ‎07-10-2012

Max rate went up again. I only had a max rate of 55,600 or so last month at this time. I wonder if they're cleaning up all the lines. I've seen an increased presence of AT&T trucks driving around lately.