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9 posts

Wannabe Geek


Topic # 138653 12-Jan-2014 13:40 Send private message

Some time ago I bought a Mini AV set top box FTA decoder. Dead basic, I know, but, worked OK in our home in Auckland. I took it to Kaitaia for occasional use only. Again, worked OK for a while, but, now, nothing. On investigating I find it was working, in afternoon and evenings only, on TURKSAT 2A3A 42 from a dual LNB Sky dish. I believe there is now no service from this source. So, I thought I'd set up for Optus D1 (I think that's the correct one for FTA, isn't it???) Tried everything I can think of to set it up but nothing. Anyone out there got any suggestions on the correct settings, please? The manual (a sad joke) is no help at all.

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Uber Geek
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  Reply # 965478 12-Jan-2014 14:00 Send private message

Confirm you are in Kaitaia? Don't think you could see Turksat from anywhere in NZ...

If the dish you have is a standard Sky dish with dual LNB that hasn't been physically moved or repositioned, then the LNB settings you need are:

L.O. 10750 (low and high if it needs both)
22kHz off

That should get the box looking at the right satellite.

From there, if your box does a blind scan, use that. If not, then you need to search the following transponders:

12456
12483
12707

all horizontal polarity, 22500 symbol rate.



9 posts

Wannabe Geek


  Reply # 965494 12-Jan-2014 14:41 Send private message

Thanks for the fast reply, Runningman. Yeah, Turksat was only any good from very late in the afternoon to early evening and onwards. I guessed, being largely ignorant of such matters, that it was below the horizon at other times. No matter now. Sadly, I have tried these settings and most other variations, too. All I get is the same answer. No signal. There is an "inbuilt" list of satellites but not Optus, so I thought I'd program one of the apparent "spares", listed as Sat 1 thru Sat 5, to be Optus one. I renamed it, set 10750 and 11300, LNB type as Universal LNB Power at 13v/18v, DiSEqC at Off, and Positioner also at Off. Bother!!! No signal. What am I doing wrong, please?

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  Reply # 965521 12-Jan-2014 15:47 Send private message

A few questions / comments -

1) Do you mean you could watch a particular Turkish channel, or the actual TURKSAT satellite? It's unlikely you could watch any free to air Turkish channels on a standard Sky dish, so the dish may have been moved. Do you remember the exact channel name that you could watch?

2) Broadcast satellites are normally in a geostationary orbit, so they sit in the same spot in the sky and won't go below the horizon. If you are getting signal variation during the day, this is far more likely to be a failing LNB on the dish - some of the Sky supplied ones are known for becoming temperature sensitive when they age.

3) Can you set up a manual LNB, not universal, as you don't have a universal LNB. Both LOs should be set to 10750, not 11300.

4) You've got the power and DiSEqC correct.

5) Yep, using one of the spare sat positions is fine - they are just a group of settings and labels.

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  Reply # 965526 12-Jan-2014 15:50 Send private message

Also, any chance of a photo of your dish?



9 posts

Wannabe Geek


  Reply # 965597 12-Jan-2014 18:25 Send private message

Okay, really appreciate the help. First, just FYI, Turksat... was fine. We had all the usual FTA channels, many of them duplicated, triplicated and more. If you want them I will list them for you happily. Second, I misinformed you. It's saying "No Programs Found". Third, I've finally found my way into "the rest" of the setup options. I have now tried All the settings you provided and still just the same, i.e., No Programs Found. Signal intensity is steady on 68% and signal Quality flickering between 0 and 1 %. Actual settings are :- TP 1/1; TP Frequency 12456; Symbol Rate 22500; Polarity H; LNB Type User; Freq 1 10750; Freq 2 10570; LNB Power 13v/18v; 22K off; DiSEqC off; Positioner off. I can't find any other parameters to set or change. I wouldn't know how to laod a picture unfortunately but the dish/LNB is the typical Sky setup with what might be described as a "double header" ice cream like LNB. Is there any way I can check for an LNB output without special equipment? I have a good quality multimeter.

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  Reply # 965626 12-Jan-2014 18:53 Send private message

gregk: [snip] First, just FYI, Turksat... was fine. We had all the usual FTA channels, many of them duplicated, triplicated and more.


Can you be more specific - do you mean you had the NZ Freeview channels, or you received some Turkish channel(s)?

I'm trying to work out if your STB was receiving a signal from Optus D1 (i.e. NZ Freeview), but just labelling it Turksat, or if the dish had been realigned to pick up Turkish channels from a different satellite.

EDIT:spelling

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  Reply # 965630 12-Jan-2014 18:56 Send private message

gregk: [snip]Actual settings are :- TP 1/1; TP Frequency 12456; Symbol Rate 22500; Polarity H; LNB Type User; Freq 1 10750; Freq 2 10570;


This will be a problem, unless it's a typo. Should be 10750.



9 posts

Wannabe Geek


  Reply # 965636 12-Jan-2014 19:07 Send private message

It's a typo. No turkish channels. Just all the usual NZ FTA channels. No possibility that the dish has been re-aligned as we are and have been the only occupants of the house from day 1. The settings of Turksat are:- LNB type Universal; Freq 1 9750; Freq 2 10600; LNB Power 13/18v; DiSEqC off; Positioner off. It's Turksat 2A3A 42

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  Reply # 965638 12-Jan-2014 19:14 Send private message

gregk: The settings of Turksat are:- LNB type Universal; Freq 1 9750; Freq 2 10600; LNB Power 13/18v; DiSEqC off; Positioner off. It's Turksat 2A3A 42


OK, they're not correct for a Sky LNB - but you've already entered the correct ones above.

If you were getting Optus D1 (Freeview) OK, but it was variable during the day, then it is almost 100% certain that the LNB on the dish is failing. You might be able to get it going temporarily by tweaking the LO frequency up or down slightly to try and find what frequency the LNB has drifted out to (what they do as they get old), but the proper fix is to replace the LNB. It's not too difficult to DIY, if you can reasonably easily get to the dish, and have someone call out the signal strength numbers from the TV while you fine tune it.

The temporay fix would be to try changing the LNB LO frequency up or down by 5 at a time and then testing. e.g. try 10745 then 10740 or 10755 then 10760. It's just a stop gap fix though if you do get it going like this...



9 posts

Wannabe Geek


  Reply # 965652 12-Jan-2014 19:16 Send private message

Ok, I'll give that a try and let you know what happens. What do i need to buy in an LNB, please?



9 posts

Wannabe Geek


  Reply # 965653 12-Jan-2014 19:20 Send private message

It would appear that I don't have the option to set the Frequency. There are a number of preset ones I can choose from, that's it, it seems. I've tried every possible combination of Freq 1 with freq 2 and still no good. More evidence that the LNB has gone the way of the penny lollipop maybe??

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  Reply # 965662 12-Jan-2014 19:36 Send private message

If you can't edit the LNB frequency, can you edit the transponder frequencies by the same amount instead? Quite a bit more fiddly, but will have the same effect.

As for LNBs, something like this will be fine.

http://www.freeviewshop.co.nz/noise-10750-band-p-624.html

Or you could go second hand from TradeMe....



9 posts

Wannabe Geek


  Reply # 965689 12-Jan-2014 19:59 Send private message

By "edit the transponder frequency", do you mean the 12456/12483 etc etc frequencies?

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  Reply # 965694 12-Jan-2014 20:18 Send private message

Yep. Try going slightly higher by 5 or 10. Might have to re scan after changing

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  Reply # 966604 14-Jan-2014 09:37 Send private message

Can you take the STB to someone's house that you know has a working setup? (ie., they have Sky going, or freeview running off DVB-S).

This will tell you at least that it is not your STB that is at fault.

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