How do you get HD

[Seymore4Head]

I subscribe to Charter. My set top HD box connects to charter with a
standard coax cable and to the TV with a HDMI cable. I use a RF
modulator to connect to the HD box's extra output Red/White/Yellow.
The output of the RF modulator is connected to several TVs using coax.

One of the TVs connected to the RF modulator is HD, but it doesn't
look HD. From what I understand, if I used the Red/Blue/Green outputs
instead of the yellow, this would give me HD up to 1080i.

Do they make an RF modulator that converts red/blue/green outputs to
coax?

Why is an HD box needed if the input is coax? What is the need for
HDMI if the incoming signal is transmitted over coax?

[UCLAN]

Post by Seymore4Head
I subscribe to Charter. My set top HD box connects to charter with a
standard coax cable and to the TV with a HDMI cable. I use a RF
modulator to connect to the HD box's extra output Red/White/Yellow.
The output of the RF modulator is connected to several TVs using coax.
One of the TVs connected to the RF modulator is HD, but it doesn't
look HD.

The RF modulator is taking the analog red/white/yellow signal and
*modulating* them to an NTSC signal for your TVs. This is an SD signal.

Post by Seymore4Head
From what I understand, if I used the Red/Blue/Green outputs
instead of the yellow, this would give me HD up to 1080i.
Do they make an RF modulator that converts red/blue/green outputs to
coax?

Doesn't matter. The TV's coaxial input is for *NTSC* (analog) signals.

Post by Seymore4Head
Why is an HD box needed if the input is coax? What is the need for
HDMI if the incoming signal is transmitted over coax?

The cable has *modulated* signals. The cable box *demodulates* and processes
these signals, and puts out a *digital* signal on the HDMI cable.

[Wes Newell]

Post by Seymore4Head
I subscribe to Charter. My set top HD box connects to charter with a
standard coax cable and to the TV with a HDMI cable. I use a RF
modulator to connect to the HD box's extra output Red/White/Yellow. The
output of the RF modulator is connected to several TVs using coax.

All you can get from composite connections is SD.

Post by Seymore4Head
One of the TVs connected to the RF modulator is HD, but it doesn't look
HD.

That's because it's getting an SD signal, not HD.

Post by Seymore4Head
From what I understand, if I used the Red/Blue/Green outputs
instead of the yellow, this would give me HD up to 1080i.

Yes, you can get HD over component cables.

Post by Seymore4Head
Do they make an RF modulator that converts red/blue/green outputs to
coax?

Maybe, google rbg to atsc, or component to atsc, or 8vsb instead of atsc.
I've never looked for one.

Post by Seymore4Head
Why is an HD box needed if the input is coax? What is the need for HDMI
if the incoming signal is transmitted over coax?

If it's an HD TV, then you can get HD over the coax, but it has to be an HD
source, like atsc, or qam from the cable co. I think most cable co.
encrypt the signal though. Some used to not encrypt local stations. Ask
your provider or just try it and see.

[Gene E. Bloch]

Post by Wes Newell
Maybe, google rbg to atsc, or component to atsc, or 8vsb instead of atsc.
I've never looked for one.

That should be RGB, not RBG...

Google is pretty smart, so they might search for that anyway :-)

[Stewart]

Post by Seymore4Head
I subscribe to Charter. My set top HD box connects to charter with a
standard coax cable and to the TV with a HDMI cable. I use a RF
modulator to connect to the HD box's extra output Red/White/Yellow.
The output of the RF modulator is connected to several TVs using coax.
One of the TVs connected to the RF modulator is HD, but it doesn't
look HD. From what I understand, if I used the Red/Blue/Green outputs
instead of the yellow, this would give me HD up to 1080i.
Do they make an RF modulator that converts red/blue/green outputs to
coax?
Why is an HD box needed if the input is coax? What is the need for
HDMI if the incoming signal is transmitted over coax?

Depending on the type of cable box you might be able to get into the setup
menu and it may allow you to configure some of your outputs, especially if
you did the install yourself. Sometimes they are set up for 480p for all
outputs by default and the installer changes it based on the type of TV you
have.



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[G-squared]

Post by Seymore4Head
I subscribe to Charter. My set top HD box connects to charter with a
standard coax cable and to the TV with a HDMI cable. I use a RF
modulator to connect to the HD box's extra output Red/White/Yellow.
The output of the RF modulator is connected to several TVs using coax.
One of the TVs connected to the RF modulator is HD, but it doesn't
look HD. From what I understand, if I used the Red/Blue/Green outputs
instead of the yellow, this would give me HD up to 1080i.
Do they make an RF modulator that converts red/blue/green outputs to
coax?
Why is an HD box needed if the input is coax? What is the need for
HDMI if the incoming signal is transmitted over coax?

'COAX' is a transmission line, a way of getting signals from A to B and says absolutely nothing about what the signals on that cable represent. As others said, the RF modulator doesn't look HD because it isn't HD.

A problem with HD component analog (if that is really what is on those jacks) is that the video needs to be compressed again to MPEG 2 or MPEG 4 to modulate it onto your private cable as either ATSC or QAM and then you're limited to the one channel (?) QAM modulator costs a LOT - 1 to 2 Grand. Our TV, a 4 year old LG, can receive clear QAM, ATSC (both HD digital) and NTSC SD analog.

There IS a way to get your HD signals around the house on your LAN cables for $130 per location plus the cable card tuner plus the PC to run it all.
http://cetoncorp.com/products/echo/

I use a Ceton InfiniTV4 cable card tuner in my HTPC that cohabitates with a Hauppauge 2250 dual ATSC tuner and so is connected to both the cable system and an outdoor antenna. The Ceton tuners can be allocated to the Echo units. This is using a PC essentially as multiple cable boxes. I do not have any of the Echo units yet but I see some in my future when the cable company turns off the analog channels my kids still watch.

The Windows media center is typical Microsoft - mostly works and has unpredictable quirks but the Ceton and Hauppauge tuners always work correctly in record. With 6 TB of storage it can hold a lot of programming.

G²

[Elmo P. Shagnasty]

Post by G-squared
I use a Ceton InfiniTV4 cable card tuner in my HTPC that cohabitates with a
Hauppauge 2250 dual ATSC tuner and so is connected to both the cable system
and an outdoor antenna. The Ceton tuners can be allocated to the Echo units.

not directly, they can't.

The Echos are simply extenders--they aren't standalone units of any
kind. They will do whatever you can do directly on your WMC box.

If you can see it directly on your WMC box, you can see it on the Echos.
That means your Echos see the results of whatever tuners you have
installed and functioning--not just the InfiniTV tuner.