Bad HD signal
I just picked up a Samsung 46" LED 1080p 120hz (UN46EH6000) this morning and then went to the local Cox store to pick up a couple HD receivers. Prior to today, I was using a basic digital box on my old crt tv. Hooked everything up, did the activation like they said over the internet, waited well more than 2 hours, reboot the box, then took about 5-10 minutes for my dumb@$$ to realize I needed to use the HD channels (1000+).
The boxes they gave me are DCH3200. No matter how I try to adjust the settings on them or my tv, it looks bad. Pixelization, ghosting, etc. It's not bad as in unwatchable or anything but it isn't what I expected. It looked 10x better in the store and neighbors' tvs look better. When the tech originally installed everything 6 months ago, he said the signal was unbelievable (as in really, really good).
Any steps or suggestions I can do myself since this was a self-install before I call Cox back up?
Are you using HDMI or component from the box to the TV?
HDMI of course.
I can't help but wonder about the boxes I have. They both are either able to switch defs or auto-detect but it shows them only capable of 1080i, not p. It appears they upscale rather than simply put out the correct signal. Old docsis too. The model seems too old for what I need.
I can reduce the digital noise through the tv but it makes the image soft, almost blurry, and doesn't clear up the ghosting.
Nobody is broadcasting 1080p content so 1080i would be the max there. You can certainly try swapping the boxes if you think that may be an issue. Do you have a blu-ray player you can test with to see if you experience similar issues?
Actually, I'm going to pick one up in a couple of hours.
The HDMI cable was Target's cheapo... though most reviews say it doesn't matter... I'm going to get a different cable this time with the Blu-ray player and see if swapping them does anything.
The tv is also atsc/qam so I'm about to try the tips on your site and bypassing the box.
If it has a QAM tuner that would certainly help eliminate the box if you get good picture that way.
Virginia Beach, VA
|reply to nineinchnerd |
The TV shouldn't have to change definition. Set the converter to always output the maximum definition the TV displays (press "MENU" twice for the settings menu). The box will upconvert SD channels to HD (but might not make them look significantly better). The box always outputting the same definition might avoid the TV exhibiting a synchronization delay switching between HD channels and SD channels. Some TVs will receive 1080i signals but only display the images at 720.
Press the "HD ZOOM" button on the Cox remote if you want to enlarge the pillar boxed image of an SD channel. This can be particularly handy if the SD image already had a letter boxed image within it.
If the house/building was wired during the analog only era several decades ago some splitter(s) might need to be upgraded to newer splitters that handle higher frequencies better. Cox initiated service in some neighborhoods in Virginia Beach in the early 1970s. Past such a splitter there could be strong analog signals but weak digital ones.
Be aware that the converter will be necessary for the program guide, advanced TV tier channels (beyond the "basic" programming tier) and the On Demand functions. The scrolling program listing on the TV Guide channel has recently been discontinued (in addition to the analog mirror of the TV Guide channel)
|reply to nineinchnerd |
The blu-ray played pretty good. The new cable didn't change anything. I was trying to find a cat2 cable but no luck in my immediate area. Whether or not I need it, I won't know till I actually get one and see if there is a difference. The cables "seem" to be rated for 60hz even though they claim higher. People also say "everything is 720 anyway" which may of been true years ago (maybe still now?) but there is a clear difference watching it with a 1080 tv... at least to my eyes.
Either way, I tracked down this site: »www.ehow.com/how_7193750_set-up-···dtv.html and it made a HUGE difference. Picture still seems a tad off with smearing and ghosting. Much, much less but I still see it here and there. The SD channels have the most improvement. The only SD ones I might watch now are the 200-215 range (Epix, Encore, etc.) HD channels seem too soft.
I never thought to ask the tech when he was here 6 months ago if the signal he said was fantastic was analog or digital. Being that it's a condo, it could take work to change where all it's split before it directs into my unit... if that's the case or not.
I'll keep playing with it. All this info is much appreciated.
I'm sure you have already gone over the video output in the menu and have it set to 1080i/480p on the box.
If you are not seeing any pixelation or having audio drop outs then your signal is good. Digital/HD is either you get it or you don't technology so any picuture problems you have beyond that are not related to signal strength.
How far away are you sitting from the tv? For a 46" TV you should be about 10'-12' or more away - if you are closer how does it look when you back up or look from a another room?
dvd536as Mr. Pink as they comePremium
|reply to CoxTech1 |
said by CoxTech1:direct tv is but only on ppv.
Nobody is broadcasting 1080p content
Despises any post with strings.
I'm not sure if that is broadcast or download, splitting hairs but a slight difference.