http://www.dslreports.com/forum/Cable-Why-wont-my-drop-amp-work-with-my-cable-modem-22594148 en Sat, 11 Feb 2012 04:48:48 EDT Sat, 11 Feb 2012 04:48:48 EDT http://www.dslreports.com/forum/Re-Cable-Why-wont-my-drop-amp-work-with-my-cable-modem-22777402 --
Great success! High five!]]> http://www.dslreports.com/forum/Re-Cable-Why-wont-my-drop-amp-work-with-my-cable-modem-22777402 Tue, 28 Jul 2009 10:50:02 EDT http://www.dslreports.com/forum/Re-Cable-Why-wont-my-drop-amp-work-with-my-cable-modem-22776811 said by egnlsn:

Connect your cable modem before the amp utilizing a 2-way splitter.
There ya go. This is pretty much a basic practice. Even if you dont use an AMP, you should do the same.. ie, install a quality 2-way splitter ahead of the TV distribution splitter. Saves headaches later on.

Alternatively, look outside for a demarcation box. If you look at your 'customer access side' on the premise demarc box, you will probably find a splitter already installed. Using a port on that will save you the loss to TV signal incurred by the '2-way'.]]> http://www.dslreports.com/forum/Re-Cable-Why-wont-my-drop-amp-work-with-my-cable-modem-22776811 Tue, 28 Jul 2009 08:53:14 EDT http://www.dslreports.com/forum/Re-Cable-Why-wont-my-drop-amp-work-with-my-cable-modem-22654282 before the amp utilizing a 2-way splitter.
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CIAO!]]> http://www.dslreports.com/forum/Re-Cable-Why-wont-my-drop-amp-work-with-my-cable-modem-22654282 Sat, 04 Jul 2009 15:47:39 EDT http://www.dslreports.com/forum/Re-Cable-Why-wont-my-drop-amp-work-with-my-cable-modem-22652581 said by Hayward:

Sounds like the amp is not bidirectional, which internet must be. (Poosibly even a splitter that isn't in between too.
Like NoVA_CoxUser said...
The amp is bidirectional (i.e. passes signal in both directions) HOWEVER it doesn't amplify the return signal. In addition to not amplifying the return, it's built in 4-way splitter means it has 7 dB of return attenuation.]]> http://www.dslreports.com/forum/Re-Cable-Why-wont-my-drop-amp-work-with-my-cable-modem-22652581 Sat, 04 Jul 2009 01:15:01 EDT http://www.dslreports.com/forum/Re-Cable-Why-wont-my-drop-amp-work-with-my-cable-modem-22648425 said by NimNams:

I have an SVi drop amp with 5-42MHz passive return. From everything I've read, this should work with my Rogers cable modem (it's a Motorola SB5100). However, while the modem can receive a signal, it doesn't send.

What am I doing wrong? Did I get the wrong drop amp?

Thanks!
Sounds like the amp is not bidirectional, which internet must be. (Poosibly even a splitter that isn't in between too.

If you do any of it do you have any problem via remote ordering PPV or other interactive cable box stiff... and again is there maybe an old splitter infront of the modem and not the cable box.
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»haywardm.com (Hayward's Key West)
]]> http://www.dslreports.com/forum/Re-Cable-Why-wont-my-drop-amp-work-with-my-cable-modem-22648425 Fri, 03 Jul 2009 03:14:18 EDT http://www.dslreports.com/forum/Re-Cable-Why-wont-my-drop-amp-work-with-my-cable-modem-22605543
1) That you're having trouble maintining your connection

2) That your upstream power level is 55 db which you suspect might be cauing some of the problems.

They will then need to troubleshoot to determine why your modem is "shouting" to be heard. It's most-likely somewhere in the RF cabling between your modem and your neighborhood fiber node.

You should normally see an upstream power level below 50 db.]]> http://www.dslreports.com/forum/Re-Cable-Why-wont-my-drop-amp-work-with-my-cable-modem-22605543 Wed, 24 Jun 2009 20:12:47 EDT http://www.dslreports.com/forum/Re-Cable-Why-wont-my-drop-amp-work-with-my-cable-modem-22601512
Thank you!!]]> http://www.dslreports.com/forum/Re-Cable-Why-wont-my-drop-amp-work-with-my-cable-modem-22601512 Wed, 24 Jun 2009 08:12:56 EDT http://www.dslreports.com/forum/Re-Cable-Why-wont-my-drop-amp-work-with-my-cable-modem-22601294 said by NimNams:

UPSTREAM:
Channel ID - 1
Frequency - 31296000 Hz Ranged
Power Level - 55 dBmV There's your problem!

Your modem is at max transmit already.

You stated that your amp is a "passive" return. That means it doesn't amplify your upstream (a.k.a. "return")

Since the amp has four outputs ... it'll actually add about 7 db of attenuation (think restriction) to your upstream and knock you offline completely.

The solution is to call your cableco and get your signal levels correct to begin with.]]> http://www.dslreports.com/forum/Re-Cable-Why-wont-my-drop-amp-work-with-my-cable-modem-22601294 Wed, 24 Jun 2009 05:32:14 EDT http://www.dslreports.com/forum/Re-Cable-Why-wont-my-drop-amp-work-with-my-cable-modem-22599982
DOWNSTREAM:
Frequency - 615000000 Hz Locked
Signal to Noise Ratio - 37 dB
Power Level - -6 dBmV

UPSTREAM:
Channel ID - 1
Frequency - 31296000 Hz Ranged
Power Level - 55 dBmV

The amp has four outputs. Its gain is 15 dB 53-1000MHz.

If what you think is true, is there a way to bring the signal levels back to the right limits?

It's also been suggested to me that I get a satellite splitter. Does anyone know if that's a valid solution?

Telcoguru, thank you for the diagram, but I think that's more for hooking it up to its power source.]]> http://www.dslreports.com/forum/Re-Cable-Why-wont-my-drop-amp-work-with-my-cable-modem-22599982 Tue, 23 Jun 2009 21:22:21 EDT http://www.dslreports.com/forum/Re-Cable-Why-wont-my-drop-amp-work-with-my-cable-modem-22596015
More then likely installation of the amp is pushing the signal levels out of acceptable limits, making either the downstream signal too high, the upstream signal too high, or the SNR too low.]]> http://www.dslreports.com/forum/Re-Cable-Why-wont-my-drop-amp-work-with-my-cable-modem-22596015 Tue, 23 Jun 2009 10:34:30 EDT http://www.dslreports.com/forum/Re-Cable-Why-wont-my-drop-amp-work-with-my-cable-modem-22595779 /speak/slidesh···YXJ0PTIw]]> http://www.dslreports.com/forum/Re-Cable-Why-wont-my-drop-amp-work-with-my-cable-modem-22595779 Tue, 23 Jun 2009 09:46:33 EDT http://www.dslreports.com/forum/Re-Cable-Why-wont-my-drop-amp-work-with-my-cable-modem-22594553 --
»haywardm.com (Hayward's Key West)
]]> http://www.dslreports.com/forum/Re-Cable-Why-wont-my-drop-amp-work-with-my-cable-modem-22594553 Tue, 23 Jun 2009 00:02:54 EDT http://www.dslreports.com/forum/Re-Cable-Why-wont-my-drop-amp-work-with-my-cable-modem-22594350 http://www.dslreports.com/forum/Re-Cable-Why-wont-my-drop-amp-work-with-my-cable-modem-22594350 Mon, 22 Jun 2009 23:18:35 EDT http://www.dslreports.com/forum/Cable-Why-wont-my-drop-amp-work-with-my-cable-modem-22594148
What am I doing wrong? Did I get the wrong drop amp?

Thanks!]]> http://www.dslreports.com/forum/Cable-Why-wont-my-drop-amp-work-with-my-cable-modem-22594148 Mon, 22 Jun 2009 22:32:41 EDT