Thread: Dish Network: Poor video quality using coax cable. Dish techs at a loss!

Originally Posted by abarkl

Tried all those; no change.

used a different sat receiver as well?

I almost want to say bad diplexers or reversed diplexers....I've done that on an install when I was trying to get it done quickly but I realized that. But there are some newbie techs and techs who have really never done this before that aren't clear on how to diplex. It seems very true that this is the case because for me I eliminate bad customer equipment (TV, VCR, extra equip.) first just so I know what I'm dealing with.

Some people have mentioned the TV2 channel. I would try all of them on cable and air modes.

Try another TV for TV2 connection. If you don't have another TV then use TV1 after getting the settings that you need.

Also was the tech sure that when he did the installation that, if he used your house existing wiring, there might be extra splitters or diplexers that the tech cannot see.

Last thing I can think of is make sure the coax is connected straight to the TV2, no external equipment to eliminate other thing wrong.

Originally Posted by abarkl

Yes. Tried all that including replacing the receiver (see original message); same problem.

Then I would say it is not the receiver or any of Dish Network's equipment. If I were the tech I would not be throwing any more of the receivers at it and start looking at the installations itself(wiring, diplexing, grounding, tv2 mod) Like I said look over everything I posted last to make sure.

Originally Posted by whatchel1

The 222k can use the separate 2 tuner OTA module. The 211k only has the built in single OTA module. That is what I mean by fancier. So 2 sat & 2 OTA. Don't think the 222k can use the EHD yet.

that's fine. But if one had two 211k's instead of one 222k , A) have HD on BOTH tv's AND have OTA without having to purchase a module for the 222k.
No we cannot add a module to a w/o. Dish has told us that they are for purchase only. And only to be used specifically for OTA.

That's strange indeed.
Of course, the picture quality over the coax cable will always be worse than over HDMI. The coax connection is SD only. So, I hope you are not expecting to see HD on the second set. But the ghost image is definitely a problem. The one that typically results from an interference or bad wiring on analog connections. I don't think this can be caused by the dish, LNB, or wires coming from the dish, since it's all digital on that side.
So, if you see ghost images on both TV sets when connecting to TV2 output directly with a short cable, then the problem has to be with the receiver, I would think. Strange that two receivers had the same problem, but you never know - perhaps they came from the same bad batch. Either that, or the installer is doing something totally wrong. Hopefully the supervisor will figure that out.

Originally Posted by abarkl

TV2 out is only coax on the receiver.

correction. There is indeed composite out for tv2. Have to run l/r audio and video to the second room.

Originally Posted by dishcomm

correction. There is indeed composite out for tv2. Have to run l/r audio and video to the second room.

Yeah but I highly doubt the cust will run a composite cable all the way to TV2 though

Originally Posted by tyler95023

Then I would say it is not the receiver or any of Dish Network's equipment. If I were the tech I would not be throwing any more of the receivers at it and start looking at the installations itself(wiring, diplexing, grounding, tv2 mod) Like I said look over everything I posted last to make sure.

he's already run a straight run going from tv 1 to tv 2. No changes.
I believe there is some kind of terrestrial interference OR the OP is not doing something correctly and just hasn't seen it.
I have been doing this a long time and I still have brain farts where I hook something up incorrectly.

Originally Posted by dishcomm

used a different sat receiver as well?

Yes.