Hi:

Okay, I have no idea under which category this should be posted, so please feel free
to move it if necessary.

I'm experiencing a couple of problems with my R5C7 install.

First, I have a 3 way cable amplifier hooked up at the moment. 2 outputs go to the Mythbox's
tuners, and 1 goes to the digital cable box (whose output goes straight to the TV).
Now, when I had no splitter or amplifier, the cable box and the Mythbox output all the channels fine.
Yet when I add the amplifier to the signal path to share cable with the Mythbox, the cable box
seems to only receive a few channels, and the Mythbox has a few go missing. If I use just
a passive splitter, the cable box receives more channels, but still not all of them (I lose channels 29-33,
but still get 59, 60 and 61.) I also lose some channels on the Mythbox. Can anyone explain this
and/or tell me how I can connect the two analogue tuners in the Mythbox to cable and still get
all the channels on the cable box which I'm supposed to?


My second problem: The electronic program guide has all incorrect information.
None of the shows that are listed are on when they are supposed to be on at all. Mythfilldatabase
seems to have no trouble downloading information, but I'm not sure it's the right information.
Either that or perhaps it's off by a day or two? I really don't know-just know the information
is wrong. When I check my profile using a web browser at abs.zap2it.com, everything seems to be
in order, and I get accurate program guide data. Any suggestions?


Thanks in advance.


Shplad

_________________
KnoppMyth R5C7
Abit NF7-S
Athlon XP Mobile 2500+
Hauppauge PVR-150 + PVR-150MCE
nVidia Geforce 6600GT
Samsung Spinpoint SATA 120GB
NEC ND-3520A DVD
Seasonic Super Tornado 350
BTC 9019URF Wireless Kbd. w. Joystick

Did you correctly set the time/date/timezone during the install? (the install asks you to do it twice) Knoppmyth is setup to have the BIOS clock at GMT and the OS will automaticaly apply the correct offset. If you have your BIOS set to your local time the offset will shift your guide data.

Splitters will decrease your signal, and they add noise. They also provide opportunities to introduce signal intrusion from outside RF sources. If you follow your cable backwards, you may also find forgotten splitters for cable runs to the bedrooms, cable modems, and at the very least, a grounding block.
Try eliminating all of the other stuff, and see if that clears things up. You may need a service call to the cable co to clean up the signal. I had to do this once as the ABCHD signal was being trounced by the OTA signal from the local FOX station. They had to replace cable, beef up the splitters, and eliminate some splitters.

This is nothing new, of course. People have tolerated snow and ghosting on analog stations for years, just shrugging them off. But with digital, you can get an intolerable situation pretty easily.

I'd recommend unplugging the MythBox and replace with two VCRs. See if the STB still craps out. If so, then call the cable co and have them fix things so that they can all run nicely, and you have good signal levels on the STB. That way, you avoid having to argue "our problem vs your problem" with the Myth box.

ryan:

Thanks. Hmm...I could be wrong, but I don't remember seeing that in the KnoppMyth docs.
Anyways, I changed my BIOS time to GMT. Can I fix the problem by now clearing the database
of guide data and then filling it again? IF so, how do I do that?

thornsoft:
I do not have any other splitting devices in my place except for a coupler where the cable first
comes in. My cable company, BTW, is relinquishing all responsbility, saying if I want
to use a PVR, I should pay for a separate outlet. Of course, I don't want to. Anyway, shouldn't
using the amplifier have made splitting a moot point?



Thanks again


Shplad

_________________
KnoppMyth R5C7
Abit NF7-S
Athlon XP Mobile 2500+
Hauppauge PVR-150 + PVR-150MCE
nVidia Geforce 6600GT
Samsung Spinpoint SATA 120GB
NEC ND-3520A DVD
Seasonic Super Tornado 350
BTC 9019URF Wireless Kbd. w. Joystick

What is the frequency range on the splitters you're using? You need special ones for digital systems that have a broader range. If my memory is working right, the regular ones are 5-1000 Mhz and the digital ones (aka Satellite or HDTV ones) are 3-2000 Mhz or something like that.

tjc:

Could it be that simple? The splitter I was using was 5-1000 MHz, but it was left by the
cable company by accident. Where could I find a broad range splitter?


EDIT: And what do I do about fixing the EPG problem?

Thanks


Shplad

_________________
KnoppMyth R5C7
Abit NF7-S
Athlon XP Mobile 2500+
Hauppauge PVR-150 + PVR-150MCE
nVidia Geforce 6600GT
Samsung Spinpoint SATA 120GB
NEC ND-3520A DVD
Seasonic Super Tornado 350
BTC 9019URF Wireless Kbd. w. Joystick

Thanks for your help so far, guys.

Okay, I picked up and connected a splitter that goes up to 2400 MHz. The result so far
is that I get all channels on the digital cable box, and I get most channels on both tuners
of the Mythbox. However, for some reason, I'm still losing 3 or 4 channels on both tuners
of the Mythbox. Any suggestions?

Oh, and I'm sure someone here knows how to fix my problem with the time offset in my EPG. Do I just need to adjust the time or ??

Thanks.


Shplad

_________________
KnoppMyth R5C7
Abit NF7-S
Athlon XP Mobile 2500+
Hauppauge PVR-150 + PVR-150MCE
nVidia Geforce 6600GT
Samsung Spinpoint SATA 120GB
NEC ND-3520A DVD
Seasonic Super Tornado 350
BTC 9019URF Wireless Kbd. w. Joystick

Which 3 or 4? If it's channels 5 and 6, you may have the wrong frequency set from us-cable vs. us-cable-irc. These two are close enough that they generally work aside from these channels.
This one is an FAQ that finally got it's own wiki page. - http://www.knoppmythwiki.org/index.php? ... GuideIsOff

tjc to the rescue!

Thanks. It is actually channels 29 through 33. Strangely, 59, 60 and
61 come through
fine (those are the next higher channels in my service)

I'll definitely try that solution for the EPG. Thanks.


Shplad

_________________
KnoppMyth R5C7
Abit NF7-S
Athlon XP Mobile 2500+
Hauppauge PVR-150 + PVR-150MCE
nVidia Geforce 6600GT
Samsung Spinpoint SATA 120GB
NEC ND-3520A DVD
Seasonic Super Tornado 350
BTC 9019URF Wireless Kbd. w. Joystick

You might want to take a look at these frequency charts and see which frequency standard is different most different for those channels... http://www.jneuhaus.com/fccindex/cablech.html

tjc:

Thanks, but I don't have a clue what you mean when you refer to those charts.

The electronic program guide seems to hold the correct data now, however,
when I open up the guide, it takes me to the wrong time period. It takes me one hour
ahead of the correct time. Any way I can fix that?

Looks like I'm still getting the same results with my splitter-getting most of the channels,
but 28-33 on the Mythbox. Also, I've just now noticed that the picture quality is somewhat
fuzzy on both Myth tuners. Is this to be expected when using a splitter?


Thanks again for the tons of help you've provided. I'm thrilled to have this much working
properly.

Shplad

_________________
KnoppMyth R5C7
Abit NF7-S
Athlon XP Mobile 2500+
Hauppauge PVR-150 + PVR-150MCE
nVidia Geforce 6600GT
Samsung Spinpoint SATA 120GB
NEC ND-3520A DVD
Seasonic Super Tornado 350
BTC 9019URF Wireless Kbd. w. Joystick