Chicago Ch 38 problem

Archived from groups: alt.tv.tech.hdtv (More info?)

"Skip" <cfad07@email.mot.com> wrote in message
news1uir2$uma$1@avnika.corp.mot.com...
> I'm using an ATI HDTV Wonder card in my computer for HDTV. I get all the
> Chicago digital channels except Ch 38. When I tune to Ch 38, the card
sees
> all 6 Ch 38 channels but won't decode the picture or audio. It says 480p
or
> something like that at the top of the screen when I first tune to the
> channel but no pix or sound. I can receive other channels OK that show
the
> same number at the top of the screen. Is that the resolution or what?
What
> could there be about Ch 38 that's different then all the other digital
> channels? The signal strength shows all the bars.
>
>
480 is the resolution and P(progressive) denotes progressive scan. 480i
(interlaced)is more typical and closest to analog. The station may be
sending a signal but no data. Check with the station or someone else who
receives it. All of the problems I've had like that have been the broadcast
not the card but I don't live close to the transmitters.

If it is transmitting correctly try rotating and/or tilting the antennae. It
may be multipath.

Just curious, how many full channels can you get?

Archived from groups: alt.tv.tech.hdtv (More info?)

On Thu, 24 Mar 2005 08:33:17 -0600, Skip wrote:

> I'm using an ATI HDTV Wonder card in my computer for HDTV. I get all
> the Chicago digital channels except Ch 38. When I tune to Ch 38, the
> card sees all 6 Ch 38 channels but won't decode the picture or audio.
> It says 480p or something like that at the top of the screen when I
> first tune to the channel but no pix or sound. I can receive other
> channels OK that show the same number at the top of the screen. Is that
> the resolution or what? What could there be about Ch 38 that's
> different then all the other digital channels? The signal strength
> shows all the bars.

I have the ATI HDTV Wonder as well, and the channel scan does find all 6
ch 38 channels just as you mention. the format (480i, 720p, 1080i, etc)
that shows at the top when I try to tune to it varies depending on what
the last channel I successfully tuned was broadcasting at.

What is interesting is that when I've looked up what channels should be
potentially available, I see the following for WCPX-DT (PAX):

HDTVpub.com (seems to be user-supplied) lists it as DTV Ch(s):
43-1/2/3/4/5/6

antennaweb.org lists it as Channel 38.1 Frequency Assignment 43

When I add channel 43 as a new channel in the channel list, I get a
channel that looks to be PAX-like on 43-1 (it is showing a prayer show
right now @12:45am -- I don't normally watch PAX, so I can't be positive
that this is what is supposed to be on ch 38.1)

I can't figure out how to manually add a subchannel in the ATI MMC
software tho, so I can't tell if 43.2/3/4/5/6 work.

Kind of annoying that the software doesn't let you just enter a
frequency/channel(+subchannel) without adding it in setup first.

oh well...

Archived from groups: alt.tv.tech.hdtv (More info?)

"lacunae" <lacunaeREMOVE@THISnyc.com> wrote in message
newsan.2005.04.29.05.48.09.730481@THISnyc.com...
> On Thu, 24 Mar 2005 08:33:17 -0600, Skip wrote:
>
> > I'm using an ATI HDTV Wonder card in my computer for HDTV. I get all
> > the Chicago digital channels except Ch 38. When I tune to Ch 38, the
> > card sees all 6 Ch 38 channels but won't decode the picture or audio.
> > It says 480p or something like that at the top of the screen when I
> > first tune to the channel but no pix or sound. I can receive other
> > channels OK that show the same number at the top of the screen. Is that
> > the resolution or what? What could there be about Ch 38 that's
> > different then all the other digital channels? The signal strength
> > shows all the bars.
>
> I have the ATI HDTV Wonder as well, and the channel scan does find all 6
> ch 38 channels just as you mention. the format (480i, 720p, 1080i, etc)
> that shows at the top when I try to tune to it varies depending on what
> the last channel I successfully tuned was broadcasting at.
>
> What is interesting is that when I've looked up what channels should be
> potentially available, I see the following for WCPX-DT (PAX):
>
> HDTVpub.com (seems to be user-supplied) lists it as DTV Ch(s):
> 43-1/2/3/4/5/6
>
> antennaweb.org lists it as Channel 38.1 Frequency Assignment 43
>
> When I add channel 43 as a new channel in the channel list, I get a
> channel that looks to be PAX-like on 43-1 (it is showing a prayer show
> right now @12:45am -- I don't normally watch PAX, so I can't be positive
> that this is what is supposed to be on ch 38.1)
>
> I can't figure out how to manually add a subchannel in the ATI MMC
> software tho, so I can't tell if 43.2/3/4/5/6 work.
>
> Kind of annoying that the software doesn't let you just enter a
> frequency/channel(+subchannel) without adding it in setup first.
>
> oh well...

WatchHDTV is a great little program that allows you to put channels into a
text file. 1,0 or -1 IIRC(1and-1 at least). It has a better signal strength
meter than DTV and does not send the video to the hard drive. Best of all
it's free for now. Look for the zip file at the bottom of the first message.
http://www.avsforum.com/avs-vb/sho [...] genumber=1

This may also be of interest to HDTV Wonder and other multimedia card
owners. It's a DIY project but very interesting. I just got my graphs set up
so I can run Watch HDTV and see video from the tuner on my AIW at the same
time. It will do much more.
http://www.rage3d.com/board/showth [...] 569&page=1

Enjoy