Will this affect my power levels?
17-02-2017, 15:59
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#1
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cf.mega poster
Join Date: Sep 2008
Location: Lincoln
Age: 48
Services: 350Mb (Hub 3) | TV: 2x TiVo on XL | Phone
Posts: 1,051
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Will this affect my power levels?
Hi,
In the back bedroom, I have my SuperHub 3 and Tivo Box and is connected via a splitter from a wire that comes from the white box on the wall.
We are in the process or redecorating the bedroom, so the Tivo Box is not plugged in to the power, but is still to the VM cable.
I was wondering if I remove the splitter and connect directly to the SuperHub 3, till it is finished.
Will it affect my powerlevels on the SuperHub 3?
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17-02-2017, 17:23
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#2
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Cable Guru
Join Date: Jun 2004
Location: Scotland
Age: 41
Services: Virgin Media Gig1 RFOG, TV360, Stream, GoFibre 1Gb
Posts: 1,049
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Re: Will this affect my power levels?
Power level will increase slightly, if its an issue you will have degraded or no service but unlikely that anything will happen. If the signal was that far off already it would be causing an issue with the splitter.
__________________
Access Network Innovation @ Liberty Global/Virgin Media
All comments are my own opinion and not a direct expression of LG/VM.
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17-02-2017, 17:40
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#3
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Perfect Soldier
Join Date: Mar 2009
Location: Worthing West Sussex
Age: 66
Services: VM 500M SH3 thingy
in modem mode
XL TV V6 Sony Bravia smart TV and M phone
Posts: 10,987
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Re: Will this affect my power levels?
Log into the SH and check the DS levels now. The splitter removal will add around 6db. IIRC the max limit is in the region of +8dBmv so if the current levels are around zero (ideal) you should be OK.
__________________
History is much like an endless waltz: The three beats of war, peace and revolution continue on forever.
However history will change with my coronation - Mariemaia Khushrenada
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17-02-2017, 17:48
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#4
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cf.addict
Join Date: May 2010
Posts: 336
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Re: Will this affect my power levels?
2 way splitter will add 3.5db
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20-02-2017, 10:26
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#5
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FORMER Virgin Media Staff
Join Date: Dec 2010
Location: Warrington
Posts: 4,737
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Re: Will this affect my power levels?
So many different answers.
Just try it and see. It'll either work or it won't.
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20-02-2017, 10:45
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#6
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cf.mega poster
Join Date: Sep 2008
Location: Lincoln
Age: 48
Services: 350Mb (Hub 3) | TV: 2x TiVo on XL | Phone
Posts: 1,051
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Re: Will this affect my power levels?
Hi,
Just done it.
Downsteam dB levels gone up between 3.5 to 4.3 dB
Upstream dB levels have gone down 3 dB
Before
1 291000000 1.9 38.9 256 qam 16
2 323000000 1.5 38.6 256 qam 20
3 315000000 1.5 38.9 256 qam 19
4 307000000 1.9 38.9 256 qam 18
5 299000000 2 38.6 256 qam 17
6 283000000 1.7 38.6 256 qam 15
7 275000000 1.9 38.6 256 qam 14
8 267000000 0.7 37.6 256 qam 13
9 259000000 1.2 37.6 256 qam 12
10 251000000 1.5 38.6 256 qam 11
11 243000000 1.5 37.6 256 qam 10
12 235000000 1.4 37.6 256 qam 9
13 227000000 1.4 38.6 256 qam 8
14 219000000 1.5 38.9 256 qam 7
15 211000000 1.7 38.9 256 qam 6
16 203000000 1.7 38.9 256 qam 5
17 195000000 2.2 38.9 256 qam 4
18 187000000 2 38.6 256 qam 3
19 179000000 1.2 38.6 256 qam 2
20 171000000 0.7 38.9 256 qam 1
5 39400000 ATDMA 45.3 64 qam 6400000 5120
6 32600000 ATDMA 45.3 16 qam 6400000 5120
After
1 291000000 5.8 38.6 256 qam 16
2 323000000 5.4 38.9 256 qam 20
3 315000000 5.1 38.9 256 qam 19
4 307000000 5.5 38.6 256 qam 18
5 299000000 5.9 38.6 256 qam 17
19 283000000 5.6 38.9 256 qam 15
6 275000000 5.8 38.6 256 qam 14
7 267000000 4.6 37.6 256 qam 13
8 259000000 5 37.6 256 qam 12
9 251000000 5.3 38.6 256 qam 11
10 243000000 5.1 38.6 256 qam 10
11 235000000 5 38.6 256 qam 9
12 227000000 5 38.6 256 qam 8
20 219000000 5.1 38.9 256 qam 7
13 211000000 5.5 38.6 256 qam 6
14 203000000 5.6 38.9 256 qam 5
15 195000000 6 38.9 256 qam 4
16 187000000 5.8 38.9 256 qam 3
17 179000000 5 38.9 256 qam 2
18 171000000 4.5 38.9 256 qam 1
5 39400000 ATDMA 42.3 64 qam 6400000 5120
6 32600000 ATDMA 42.3 16 qam 6400000 5120
Last edited by GazCBG; 20-02-2017 at 10:49.
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20-02-2017, 10:57
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#7
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cf.geek
Join Date: Jul 2010
Location: Newcastle
Posts: 785
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Re: Will this affect my power levels?
Should be fine, your DS levels are about what mine are at with a splitter for BB / tivo
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20-02-2017, 20:33
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#8
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Inactive
Join Date: Sep 2016
Posts: 210
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Re: Will this affect my power levels?
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27-02-2017, 08:01
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#9
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cf.mega poster
Join Date: Sep 2008
Location: Lincoln
Age: 48
Services: 350Mb (Hub 3) | TV: 2x TiVo on XL | Phone
Posts: 1,051
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Re: Will this affect my power levels?
@Onramp lol
If I add the spliter back in place but not connect the wire to the box or to the splitter, is this could this cause interference on the VM network?
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27-02-2017, 08:30
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#10
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Inactive
Join Date: Sep 2016
Posts: 210
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Re: Will this affect my power levels?
Potentially, yes.
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27-02-2017, 09:06
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#11
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Perfect Soldier
Join Date: Mar 2009
Location: Worthing West Sussex
Age: 66
Services: VM 500M SH3 thingy
in modem mode
XL TV V6 Sony Bravia smart TV and M phone
Posts: 10,987
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Re: Will this affect my power levels?
Quote:
Originally Posted by GazCBG
@Onramp lol
If I add the spliter back in place but not connect the wire to the box or to the splitter, is this could this cause interference on the VM network?
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It could also give "suck outs" at certain frequencies and affect your service. Unused ports should be correctly terminated.
75 Ohm F type terminator.
__________________
History is much like an endless waltz: The three beats of war, peace and revolution continue on forever.
However history will change with my coronation - Mariemaia Khushrenada
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27-02-2017, 15:31
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#12
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cf.geek
Join Date: Nov 2011
Location: United Kingdom
Services: YouFibre | Lebara Sim x 2| Plex
Posts: 883
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Re: Will this affect my power levels?
Hi I have just moved my network equipment to the back bedroom do the power levels look ok
Code:
Channel Frequency(Hz) Power
1 299000000 0 40.3 256 qam 13
2 323000000 0.5 40.3 256 qam 16
3 315000000 0.4 40.9 256 qam 15
4 307000000 0.2 40.9 256 qam 14
5 291000000 0.2 40.9 256 qam 12
6 283000000 0.4 40.9 256 qam 11
7 275000000 0.2 40.3 256 qam 10
8 267000000 0.7 40.9 256 qam 9
9 259000000 0.7 40.9 256 qam 8
10 251000000 1 40.9 256 qam 7
11 243000000 0.7 40.3 256 qam 6
12 235000000 1 40.9 256 qam 5
13 227000000 0.9 40.3 256 qam 4
14 219000000 0.9 40.9 256 qam 3
15 211000000 1 40.9 256 qam 2
16 203000000 0.9 40.9 256 qam 1
Code:
2 31000000 ATDMA 45 64 qam 6400000 5120
1 37600000 ATDMA 45 64 qam 6400000 5120
[img][/img]
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27-02-2017, 17:54
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#13
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cf.addict
Join Date: May 2010
Posts: 336
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Re: Will this affect my power levels?
Quote:
Originally Posted by Martin_D
Hi I have just moved my network equipment to the back bedroom do the power levels look ok
Code:
Channel Frequency(Hz) Power
1 299000000 0 40.3 256 qam 13
2 323000000 0.5 40.3 256 qam 16
3 315000000 0.4 40.9 256 qam 15
4 307000000 0.2 40.9 256 qam 14
5 291000000 0.2 40.9 256 qam 12
6 283000000 0.4 40.9 256 qam 11
7 275000000 0.2 40.3 256 qam 10
8 267000000 0.7 40.9 256 qam 9
9 259000000 0.7 40.9 256 qam 8
10 251000000 1 40.9 256 qam 7
11 243000000 0.7 40.3 256 qam 6
12 235000000 1 40.9 256 qam 5
13 227000000 0.9 40.3 256 qam 4
14 219000000 0.9 40.9 256 qam 3
15 211000000 1 40.9 256 qam 2
16 203000000 0.9 40.9 256 qam 1
Code:
2 31000000 ATDMA 45 64 qam 6400000 5120
1 37600000 ATDMA 45 64 qam 6400000 5120
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Absolutely perfect
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28-02-2017, 08:37
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#14
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FORMER Virgin Media Staff
Join Date: Dec 2010
Location: Warrington
Posts: 4,737
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Re: Will this affect my power levels?
Quote:
Originally Posted by Martin_D
Hi I have just moved my network equipment to the back bedroom do the power levels look ok
Code:
Channel Frequency(Hz) Power
1 299000000 0 40.3 256 qam 13
2 323000000 0.5 40.3 256 qam 16
3 315000000 0.4 40.9 256 qam 15
4 307000000 0.2 40.9 256 qam 14
5 291000000 0.2 40.9 256 qam 12
6 283000000 0.4 40.9 256 qam 11
7 275000000 0.2 40.3 256 qam 10
8 267000000 0.7 40.9 256 qam 9
9 259000000 0.7 40.9 256 qam 8
10 251000000 1 40.9 256 qam 7
11 243000000 0.7 40.3 256 qam 6
12 235000000 1 40.9 256 qam 5
13 227000000 0.9 40.3 256 qam 4
14 219000000 0.9 40.9 256 qam 3
15 211000000 1 40.9 256 qam 2
16 203000000 0.9 40.9 256 qam 1
Code:
2 31000000 ATDMA 45 64 qam 6400000 5120
1 37600000 ATDMA 45 64 qam 6400000 5120
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Spot on mate, couldn't ask for better results.
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04-03-2017, 18:55
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#15
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cf.mega poster
Join Date: Sep 2008
Location: Lincoln
Age: 48
Services: 350Mb (Hub 3) | TV: 2x TiVo on XL | Phone
Posts: 1,051
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Re: Will this affect my power levels?
I ended up buying a 3dB forward path attenuator, which I have just added.
So my levels are now
Code:
1 299000000 1.9 38.6 256 qam 17
2 323000000 1 38.6 256 qam 20
3 315000000 1 38.9 256 qam 19
4 307000000 1.5 38.6 256 qam 18
5 291000000 1.7 38.6 256 qam 16
6 283000000 1.5 38.6 256 qam 15
7 275000000 1.2 38.9 256 qam 14
8 267000000 1.2 38.6 256 qam 13
9 259000000 0.9 37.6 256 qam 12
10 251000000 1 38.6 256 qam 11
11 243000000 1 37.6 256 qam 10
12 235000000 1 38.6 256 qam 9
13 227000000 0.9 38.6 256 qam 8
14 219000000 1 38.6 256 qam 7
15 211000000 1.4 38.6 256 qam 6
16 203000000 1.5 38.9 256 qam 5
17 195000000 1.9 38.6 256 qam 4
18 187000000 1.5 38.6 256 qam 3
19 179000000 0.9 38.6 256 qam 2
20 171000000 0.7 38.6 256 qam 1
Code:
4 46200000 ATDMA 44.3 16 qam 6400000 5120
5 39400000 ATDMA 44.3 16 qam 6400000 5120
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