I have got a new Visionplus DVB-T in my R5A12 box and when I do a scan through mythtv-setup it only gets to 50% and sits there.

I change the starting frequency but does not pick up all the channels. When I did a scan using the dvb-utils it found them all, but I have no way of takin that info into mythtv.

The channels I do get look great, except it looks like they are dropping frames. During the scanning and when it locks to a signal the strength is around 30% with SNR near 40%.

What I want to know is that if I get a better (new) aerial will I get a better signal and thus get all the channels.

For the record I live in Brisvegas (Brisbane) Queensland Australia and have four (4) outlets connected to my aerial.

Thanks in advance to everyone.

i have a similar problem with mine. I have found that i let it do the scan and find the channels then cancel when it stops.

i then do sbs by itself since thats the one that the causing the problem.

give that a try and see how you go

How do you add the channel itself, this may seem like an ignorant question, but I am not sure how to go about this.

Also this will not resolve the issue of the poor signal quality.

are you using quad shielded cable for your antenna. if not get that part sorted first and go from there.

how did you scan for channels in mythtv? Enter a frequency and scan the transports?

Once youhave done the partial scan you scan choose to scan existing streams. I found that via this method I could get sbs to tune in properly.

Yeah I was talking to the local TV Antenna man today and he is coming around next Wednesday to test the signal for me and he said the exact same thing first up.

Seems a bit much though at $1.10 pr/m and I have 4 outlets, so I might have to bite the bullet and shell out the cash.

Have to see what the magic meter says when he tests the signal.

I too am having a similar problem.

Im from Wollongong, NSW & I am having problems with SBS & ABC.

Prime, WIN, & Ten are fine.

It seems to find them, then drop.

I have a crap digital set top box sitting next to me and it finds them fine.

Have we had any further luck with this?

Cheers.

Aaron
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Montesa Honda specifications

Aaron, it depends on your card.

If it is something old, like the VisionPlus or Aver 761, the tuner is _very_ insensitive and it needs all the help it can get (quad-shielded coax and maybe an RF amplifier).

If it is something newer (DVICO, Aver 771), then maybe you should try both VHF _and_ UHF frequencies? (which the set top box would have automagically scanned)

_________________
| Nigel Pearson, nigel.pearson.au@gmail.com
| "Things you own end up owning you" - Tyler, Fight Club

After being screwed over by the TV guy, he forgot my appointment, I have looked a bit further into it.

I have installed Windows XP on my Knoppmyth Box, so everything is exactly the same and found that with the driver from Twinhan I get a signal strength of 77%, compared to >30% with Knoppmyth.

Now I just attribute this to driver maturing, so I hope there is more work going on. This poses another question, does the DVB-T card use the bttv driver or does it use some other DVB driver?

I am still going to replace most of the coax with RG-6 to improve the signal, but I don't believe that this is the be all and end all if a STB works and a PCI doesn't.

I do agree with Nigel in that the Visionplus is a cheap card and I don't expect miracles.

The bttv is used for the DMA from the card, and the I2C bus interface to the frontend. Another two drivers, dvb_bt8xx and dst, round up the DVB data transfer and frontend-specific maths.

In the long term, improvements in the front end drivers should make it work as well under Linux as Windows.

_________________
| Nigel Pearson, nigel.pearson.au@gmail.com
| "Things you own end up owning you" - Tyler, Fight Club

Ok I've got knoppmythtv working sorta
But I'm only finding channels for seven and nine (Brisbane)
I live in an unit block with shared areial. (I think only with four other units; otherwise eight)
I looked at the ditigal broadcasting site and they reckon unit areials need to be tested to see if the masthead supports digital frequencies. Not good news as I don't think body corporate is going to pay for that so I can watch my digital chanels. I bought a normal rabbit ear antenna thinking it might have better luck seeing so I live pretty damm close to cootha. But they only get the seven and nine bands as well (using both scan inthe dvb-utils and myth scans)
I did see a indoor antenna for sale with a built in amp has anyone tried this or got a suggestion??
Its still fantastic to have two channels though

This is with the VisionPLus Dvb-T card

Thanks in advance

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gibblets