[mythtv-users] Problems tunning channel 1

Judd Tracy judd.tracy at gmail.com
Wed Aug 30 01:39:22 UTC 2006


On 8/29/06, Michael T. Dean <mtdean at thirdcontact.com> wrote:
> On 08/29/2006 03:22 PM, Carl Fongheiser wrote:
> >  On 8/29/06, Judd Tracy <judd.tracy at gmail.com> wrote:
> > >
> > > I am having problems tuning in channel 1 on my myth box.  I have 2
> > > tuners that are both hooked up to the same source and can tune
> > > every channel except for channel 1.  Both tuners are Hauppauge
> > > WinTV PVR-250 cards (cx23416 based) running under a single myth
> > > backend using version 0.19.  When ever I try to record this channel
> > > I only get static.
> > >
> > > The channel is WBCC (PBS) here in Orlando on BrightHouse networks
> > > digital cable.  I have not been able to determine if this is a
> > > digital channel, but everything I have found so far seems to
> > > suggest that it should not be.  The freqid listed in the database
> > > for this channel is 73250
>
> That's close enough to correct for IRC.  The HRC frequency is 72004kHz.
>
> However, I set up a Myth box for a friend in Rockledge, and he's using
> the standard cable frequency allocations (not HRC nor IRC) and,
> therefore, doesn't have channel 1 defined.  Since you're close by (and
> also using Brighthouse), I checked their website (
> http://apps.cfl.mybrighthouse.com/customercare/lineups/lineups.asp?lineupid=25
> ) to see if it were a digital-only channel and they show channel 1 as
> the "Government Channel" being broadcast with their analog
> package--which makes no sense since--as I mention below--channel 1 only
> exists in HRC and IRC frequency tables and Brighthouse isn't using
> them.  In Brevard, they also broadcast the same channel on channel 99.
> Unfortunately for Orange County (
> http://apps.cfl.mybrighthouse.com/customercare/lineups/lineups.asp?lineupid=36
> ), WBCC only exists on channel 1 (and channel 99 is the "Government
> Channel").

Well I am in Seminole County so this is the lineup:
http://apps.cfl.mybrighthouse.com/customercare/lineups/lineups.asp?lineupid=1
But I do not see the channel listed anywhere else.

>
> Then again, it's a cable company, so they may do it their own way (who
> needs standards, after all).  If they "extended" the standard
> frequencies to include a channel 1, it would be either 73250kHz (+6MHz
> from channel 4) or 71250kHz (-6MHz from channel 5) or 72250kHz if you
> split the difference.  However, there's technically not enough room for
> a channel in there (so it--and channels 4 and 5--would likely suffer
> from interference), but it's worth a try--you may as well check all of
> those frequencies.

Ya, I tried those and nothing works.  I even setup a netcat from
backend to mplayer on another linux box to watch while incrementing
through frequency ranges to see if I could see anything, but nothing.
I guess I will try and contact them tomorrow to see how I am supposed
to be able to view it through Basic Cable without thier box.    Isn't
that what basic cable means?

> >
> >  There's no such thing as channel 1 in North America, so anything that
> >  the digital cable box is displaying as channel 1 is something else.
> >  If you've got a cable-ready TV handy, you can plug your cable into
> >  that, and see if it's there as an analog channel.  (It won't be
> >  channel 1, though!)
>
> That's true if you're talking about US Cable's standard frequency
> allocation; however, the HRC and IRC frequency tables do define a
> channel 1.  The weird thing, though, is that I don't think Brighthouse
> Orlando is using either HRC or IRC.

That might be true, but I have a POS Magnavox TV that will tune
channel 1 so I figure there must be a reason for that.  But when I
tried it nothing showed up, so it is not comming across the line like
that.

Thanks for the help Mike.

Judd


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