TVHeadend with Freeview (Optus D1)

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CaptainEthernet

6 posts

Wannabe Geek

#99325 16-Mar-2012 23:17

I have just set up TVHeadend with a TeVii S660, however i cannot pick up any channels when doing a scan.

I have the LNB set to "Circular 10750" and added the Optus D1 transponders of:

12,483,000 Khz
12,456,000 Khz

both with a symbol rate of 22500 kBaud

Has anyone else managed to get TVHeadend working with Freeview from Optus D1 ?

RunningMan

8953 posts

Uber Geek

#596360 17-Mar-2012 07:54

You need linear not circular polarisation (i.e. H/V).

Is 10750 the L.O. frequency of your LNB? Other freqs to try would be 11300 and 10700.

PANiCnz

990 posts

Ultimate Geek

#596378 17-Mar-2012 09:10

I've got it working with TVheadend. I use "Circular 10750" and then just use "Add DVB network by location". It has all the default settings preconfigured for D1.

CaptainEthernet

6 posts

Wannabe Geek

#597116 19-Mar-2012 13:34

Bugger :(

Those are the settings I am using

This is on Ubuntu 11.10

I have one of the standard Sharp 10750 Dual-Throat LNB's that Sky use. Does anyone else have any ideas on what could be wrong ?

PANiCnz

990 posts

Ultimate Geek

#597127 19-Mar-2012 13:55

Looks right to me, could be a signal issue. Are you able to tune Freeview on the same satellite with an STB?

I found half my issues were related to signal problems, and once I got that resolve the TVheadend part was easy.

mm1352000

1149 posts

Uber Geek
Inactive user

#597130 19-Mar-2012 13:59

I'm not familiar with the TVHeadend (looks nice) but I can tell you that Sky dual throat LNBs don't use DiSEqC - you switch between the satellites with a 22kHz tone. I don't know how you'd go about configuring that in TVHeadend. The other thing you may need to do is specify the modulation and/or FEC rate (3/4) for the muxes. The modulation value could either be "not defined", "not set" or "QPSK".

CaptainEthernet

6 posts

Wannabe Geek

#597142 19-Mar-2012 14:08

Thanks guys,

Yes, it works fine with an old DM500 and the silver sky decoder.

I'll plug it in to a Windows laptop with the supplied software installed and see if I can make it work, then work backwards from there.

CaptainEthernet

6 posts

Wannabe Geek

#598437 21-Mar-2012 23:28

Hi guys,

Thanks for all your help. I managed to get this working by modifying the dvb_satconf.c file to have a new LNB type that has a lo of 10750, a high of 10750 and a switch of 0.

Once compiled and put in place, with the custom LNB selected it now works perfectly.

I am looking forward to tvheadend 3.x where we can modify all the LNB settings from the WebUI.