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Old 02-14-2017, 09:18 PM   #1
My plasma is High Def.
 

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Default I'm Worried I'm not getting HD

I had cable a few years ago and, with my 720p Mitsubishi projector, the picture looked dazzling - very detailed and sharp. I "cut-the-cord" and got a Channel Master tuner. I'm receiving the channels but they DO NOT look as good as the cable picture did. If anything, they have a 420i look about them. Is it possible to receive hi-def channels at a lower resolution? Is the Channel Master incapable of showing HD pictures. I'm disappointed because I'm supposed to be getting hi-def stations in my area.
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Old 02-15-2017, 06:43 AM   #2
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You haven't told us anything about the specific stations in your area or where you are, or the specific stations involved.

Many major TV stations also carry standard-def programming on their -2, -3, etc stations so they'll never be high-def, only the -1 channel is HD. There are, in many areas, any number of low-power stations that only carry standard-def programming.

There's nothing wrong with the CM tuner's capabilities, it's known as a solid performer. The issue is something else.
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Old 02-15-2017, 02:25 PM   #3
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What connection do you have from the Tuner to your projector?

HD is only carried on HDMI or component.

Is the tuner set to output 1080i or 720p?
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Old 02-16-2017, 03:03 AM   #4
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Possible CECB box? We need the Channel Master model number to be sure.
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Old 02-16-2017, 05:37 AM   #5
High Definition is the definition of life.
 

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He hasn't returned to the forum since he made his post.

Let it ride.....
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Old 02-16-2017, 08:45 AM   #6
My plasma is High Def.
 

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Hello,

The tuner is a Channel Master -7001. There doesn't seem to be a HD/SD switch on it. I'm using an HDMI cable to connect the tuner to the projector. My area is Jamesburg, NJ 08831. I have noticed that there is often a repeat of the channels with one looking better (.1) than the other. Are these network stations showing content that is still in low-def? If you didn't get an HD channel with good enough reception, would you receive it in lower resolution? I know, i'm a technophobe. I just remember watching basketball on cable and seeing unbelieveable detail. Every light reflection on the court, every drop of sweat on every forehead.
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Old 02-16-2017, 11:13 AM   #7
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Yes, the XX.1 channels should all be in HD.

With OTA, you will either get a good signal or you wont get anything, it does not down-res.

Check the setup of the box to see that the output is set to HD.
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Old 02-16-2017, 01:06 PM   #8
It's the Antenna!
 

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Quote:
The tuner is a Channel Master -7001. There doesn't seem to be a HD/SD switch on it.
The manual says there is a HD/SD button on the remote control (actual page 6, scroll page 7), but actual page 15 seems to imply that if you use HDMI or Component output, it is not necessary to switch on the remote.
manual
http://downloads.channelmaster.com/S...001+Manual.pdf

Attached Images
File Type: jpg CM 7001 HD-SD Switch.JPG (90.0 KB, 29 views)
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Old 02-16-2017, 01:50 PM   #9
It's the Antenna!
 

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Quote:
If you didn't get an HD channel with good enough reception, would you receive it in lower resolution?
No, HD stays HD and SD stays SD, disregarding upscaling in some equipment.
https://www.google.com/#q=upscaling

Here is a tvfool report for your area:
http://www.tvfool.com/?option=com_wr...e6a49da477055d

In my area CBS sports OTA looks really good; they use their best cameras and the signal is not compressed. This is a screen shot from a Sony 32-inch TV; small section at lower left of screen:



On the other hand, ION squeezes a lot of sub channels into one TV channel. They use compression on their main 720p sub channel so that it doesn't look any better than PBS 480i Create. The 480i shopping networks are really bad:

QVC on cable:



QVC OTA 480i:



All images at the same magnification.

Here is a list of channels in your area, starting with WABC. If you click on a callsign, you will see if the sub channels are 1080i, 720p, or 480i.

http://www.rabbitears.info/market.ph...&callsign=wabc
Attached Images
File Type: jpg CBS Sports 1080i.jpg (136.4 KB, 30 views)
File Type: jpg Cox QVC 1080i.jpg (153.6 KB, 29 views)
File Type: jpg ION QVC 480i.jpg (166.4 KB, 29 views)
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Last edited by rabbit73; 02-16-2017 at 02:31 PM..
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Old 02-16-2017, 04:16 PM   #10
High Definition is the definition of life.
 
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Try the tuner on a different TV, (borrow a friends?) if it looks the same then it's the tuner.

It also sounds like your ready for a new TV set if that one can only do 720.
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Old 02-16-2017, 05:21 PM   #11
My plasma is High Def.
 

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Yeah, my next projector will be a step up. But 720 really does give a great picture, even on a 112 inch screen. I'm going to have to take a good critical look at the pictures. Maybe I'll get some shots of the screen too. Something may not be right. Apple TV HD is great. I'll also try playing with the remote. It can't hurt. Thanks for the fast and very informative help everyone.
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Old 02-16-2017, 05:30 PM   #12
My plasma is High Def.
 

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UPDATE!!!
I went ahead and pushed that button on the remote control and BOOM! Hi-def!! I could not believe it! It actually worked. I don't know why or whether I'll have to push that button every time but it worked. Thanks everyone.
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Old 02-16-2017, 06:45 PM   #13
It's the Antenna!
 

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Thanks for the report; glad that we could help.
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Old 02-17-2017, 01:36 AM   #14
High Definition is the definition of life.
 
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Good news, good to see it was something simple.
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Old 02-17-2017, 01:33 PM   #15
My plasma is High Def.
 

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I never would have discovered that without you guys. I wonder if someone pressed the button that switched it out of HD.? I usually just put the remotes aside and program them into the Harmony One.
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