Virgin Media cable signal strength

[jonnyd]

Hi all,

I just ran the signal strength check and this is the output:

Cable Modem Downstream
Downstream Lock : Locked
Downstream Channel Id : 6
Downstream Frequency : 586750000 Hz
Downstream Modulation : QAM64
Downstream Symbol Rate : 6952 Ksym/sec
Downstream Interleave Depth : taps12Increment17
Downstream Receive Power Level : -9.8 dBmV
Downstream SNR : 30.1 dB


Is this a concern? I live in W10.

[xspeedyx]

downstream looks ok if your ex-telewest should be between -12/+12

[jonnyd]

this is ex ntl i think

[xspeedyx]

not too sure about ex ntl wait for whydoineedatech he will be able to tell u sorry cnt b more help

---------- Post added at 13:39 ---------- Previous post was at 13:38 ----------

in fact have a look here is it helps http://www.cableforum.co.uk/board/12/26006-cable-modem-signal-levels.html

[Axegrinder]

Ex NTL, i dont think they use QAM64 on telewest, plus the frequencies are wrong for telewest. For ex ntl, the borderlines are (i think) -/- 6dmv.

[xspeedyx]

In that case you need to call Broadband techincal support

151 and opt 3 from a Virgin Media LandLine

[whydoIneedatech]

Ex NTL, i dont think they use QAM64 on telewest, plus the frequencies are wrong for telewest. For ex ntl, the borderlines are (i think) -/- 6dmv.
Yes definitely NTL and his power level is a bit on the low side so you are right about calling Tech Support.

All Telewest connections use the frequencies below.

331000000 or 339000000 for easy reference.;)

[Spookster67]

Hi,

I'm with Virgin Media, ex-Telewest. The good news is that I've recently been upgraded from 4MB to 10MB (I'm in S11 area), and using speedtest.net I'm getting 9.8MB.

The bad news is that I'm occasionally losing connectivity completely, or getting poor connectivity. What are the ideal, and the acceptable, signal levels for ex-Telewest?

My figures:
Downstream Frequency : 339000000 Hz
Downstream Receive Power Level : -5 dBmV (but sometimes -8 or -9dBmV)
Downstream SNR : 35 dB
Upstream Transmit Power Level: 39 dBmV

Are these within the ideal, or at least acceptable ranges?

Thanks for any help!

[whydoIneedatech]

Hi,

I'm with Virgin Media, ex-Telewest. The good news is that I've recently been upgraded from 4MB to 10MB (I'm in S11 area), and using speedtest.net I'm getting 9.8MB.

The bad news is that I'm occasionally losing connectivity completely, or getting poor connectivity. What are the ideal, and the acceptable, signal levels for ex-Telewest?

My figures:
Downstream Frequency : 339000000 Hz
Downstream Receive Power Level : -5 dBmV (but sometimes -8 or -9dBmV)
Downstream SNR : 35 dB
Upstream Transmit Power Level: 39 dBmV

Are these within the ideal, or at least acceptable ranges?

Thanks for any help!
Those power levels and SNR are well within acceptable ranges.

What modem do you have as you are now on 10MB.

[Spookster67]

Those power levels and SNR are well within acceptable ranges.

What modem do you have as you are now on 10MB.

Motorola Surfboard 4100.

[whydoIneedatech]

Motorola Surfboard 4100.
You really should see about getting that modem swapped by either calling Tech Support or through the Newsgroups.
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For help with your TV or Phone and for Broadband Technical Support:

Call Product Support/Faults on 151 option 3 from your Virgin Media Phone. It's absolutely free.

Or call 0845 454 1111 from any other phone line.
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Tech Support via Newsgroups.

virginmedia.support.broadband.cable is the one that you want to use and here is the set up link http://www.virginmedia.com/customers...setting-up.php

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