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47 posts

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Topic # 173222 15-May-2015 13:19
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Hi

I have a USB TV tuner in a Linux box, using TVHeadend as the digital tv backend server.

I have successfully got it to scan and find channels including TV3, Four, The Edge TV, Apna, The Shopping Channel, but TV1, TV2, Prime (and some others) are missing - i.e. it's missing the TVNZ multiplexer.

These succeeded channels (TV3 etc) have come through on Mux Frequency 530MHz and 562MHz.

I have scanned the 'Tauranga' (in fact all NZ) built in known muxes and no more channels are found.

It might just be the mux I need for TVNZ is not part of the in built known muxes in TvHeadend but I can't figure out how to start an 'all frequency' scan.

So does anyone know what settings/frequencies I want to try and scan? or know how to start an all scan in TVHeadend?

The aerial isn't pointing to Kopukairua by the way - it's another one, Te Aroha?.  

I get these channels fine via a TV freeview tuner, and also found then when testing the USB Tuner with the out-of-the-box Windows TV software so it shouldn't be a reception issue; it's just with TVHeadend on Linux, hence thinking I just need to tell it manually what frequencies to look on.

Any pointers most appreciated.

Attached image shows the muxes dialog in tvheadend, with the frequencies it thinks are "tauranga" (and also Waikato is in there).

Click to see full size

Thanks



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  Reply # 1305780 15-May-2015 13:21
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It sounds like you're pointing at Te Aroha, so TVNZ should be at 578 MHz.

You can look up frequencies in SMART. Enter "Te Aroha" under Transmit Location and "DTV" under Channel.



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  Reply # 1305794 15-May-2015 13:26
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thanks for the quick reply.

Yes sorry just edited my original message when I realised it was Te Aroha.

I have done a scan on 578 and still get a fail.

When adding the frequency, it offers the following settings:

Click to see full size

I left them to default and it fails.

I've also copied the same settings from the other (working) mux and just changed to 578MHz but still fails.

Any idea if there's anything specific I need to specify in that additional dialog?

Thanks

 
 
 
 


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  Reply # 1305811 15-May-2015 13:47
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Related to this, I created a Google Earth kml file, that shows transmitter locations and lists the various mux's and frequencies.

NZ DTV Transmitter Sites

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  Reply # 1305831 15-May-2015 14:03
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rjbathgate: Any idea if there's anything specific I need to specify in that additional dialog?

Not a clue. I'm not a "Linux person" (I try it every couple of years but typically find a dozen bugs in as many minutes and give up on it again).



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  Reply # 1305843 15-May-2015 14:09
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Success!

Manipulated one of the preexisting working muxes (562MHz) and just changed the freq. to 578MHz and foreced a rescan, and it found 15 new channels inc TV1 and 2.

Still missing PRIME. What mux / frequency would that come in from Te Aroha?

Thanks

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  Reply # 1305848 15-May-2015 14:15
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Prime is on Kordia mux.




Ross

 

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  Reply # 1305852 15-May-2015 14:19
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awesome thanks, picked up the rest on Kordia / 594MHz

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