dehmmy
join:2004-11-20
Bethesda, MD
| reply to wtnd
Re: [CATV] Trouble with Splitter and Pixelation
said by wtnd :
Hi, I'm having trouble with my cable signal. I'm in an apartment with two splitters one separating living room and bedroom and then one on the living room line to my cable box and cable modem. The box that shares the splitter with the modem is pixelating badly. I switched splitters and the problem persisted and then moved the cable modem to the bedroom which moved the pixelation to the bedroom cable box. Any ideas on this? or do I just need to call in a tech? Thanks in advance.
N
1) BAD! You want the cable modem as close to the incoming coax as possible. Then I would run Ethernet CAT-5 cable to your computer or have it hooked up to WiFi. I've had many problems with linksys in terms of the way it handles packets.
2) 2 splitters isn't very good. Did you purchase these splitters or did RCN provide them?
3) Do you mean artifacts or is it actually causing the screen to be pixillated cause there is a difference.
I would get 1 unbalanced splitter from RCN and plug the cable modem into the -3.5 dB jack.
It sounds like you have 2 TVs and you are splitting it at one TV to hook the cable modem up. That will give you horrible signals.
So this is what it would look like...
coax in >--[3-way unbalanced splitter]--> [1 to each room and cable modem in the -3.5dB slot]
in other words, when the coax or jack that you hook up to when it enters your apt., have a cable hook into a 3-way unbalanced splitter in which I mean there will be one line in as the input, and three jacks to hook up cables to. two of them will be reduced lower so there's more loss on the 2 for the TV's and the 3rd will have less loss.
This is one I have »www.extreme-broadband.com/bds103h.asp
So you'd hook the cable modem to the far left one and the other two would be fore the TVs to avoid multiple splitters.
cheers,
dehm |
ike
join:2000-10-23
Whitehall, PA
 ·RCN CABLE
| said by dehmmy  :coax in >--[3-way unbalanced splitter]--> [1 to each room and cable modem in the -3.5dB slot] I did something similar a while after we had an addition put on the house and had issues with the new drops:
Before:
RCN
|
4x-splitter
(-7dB)
| | | |
| CM (2 HD DVRs)
|
4x-splitter
(-7dB)
| | | |
| (1 QAM, 2 SDTVs)
|
4x-splitter
(-7dB)
| | | |
(2 SDTVs, 2 unused drops)
After:
RCN
|
Surge
Protector
|
2x-splitter
(-3.5dB)
| |
| |
CM Amp
(+15db)
|
16x-splitter
(-15dB)
[unused ports on the splitter, as well as
unused drops capped with 75 ohm terminators]
TVs off that last splitter were getting snowy (especially in the MBR where we split again for a ReplayTV...). And one of the TVs with a QAM tuner had trouble with a few top-end channels.
After I redid things, I did noticed at first I had some pixelation with the HD-DVR boxes, but then I realized I hadn't put in the filters RCN had on the digital lines before I changed it up (I'll have to look at what they are when I get home).
After the new configuration, everything is clear all around. CM has better signal strengths than it did before and no snow anywhere... |
