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Topic # 70002 16-Oct-2010 11:41
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So here's the story, New roof: re-positioned and aligned dish. 80% signal strength...But only when Satellite Finder is still attached to the LNB (and obviously powered up by attaching to the receiver). If I take the finder out of the equation the receiver fails to detect any signal. So I though I'd leave the Sat finder attached but tried it inside, next to the receiver (as opposed to being left out on the roof). No good, it has to be 'near' the dish!! Everything used to work prior to the roof work and all components remain unchange. Spent hours bashing my head up against a brick wall. Has anyone got the faintest idea to what is happening. Should I leave the Sat finder attached and waterproof it with duct-tape????? Help....PLEASE 

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  Reply # 392531 16-Oct-2010 12:05
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What exactly happens at the receiver end when you disconnect the sat finder - do you get reception of a picture, or just a signal indication?

Initial guess is the dish is pointed at the wrong satellite, so the sat finder is seeing a signal, but not the one the receiver is expecting.

Alternatively, the skew (rotation) of the LNB might be out by a few mm.



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  Reply # 392535 16-Oct-2010 12:13
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Thanks Runningman. I receive all Freeview channels when the sat finder is attached - but none when I take it off and replace the cable to the LNB. I've literally tried what I perceive to be everything. This is a whole new ball game for me but unfortunately logic is telling me its impossible for this to happen!!!

 
 
 
 


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  Reply # 392553 16-Oct-2010 12:46
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If I'm visualising this right, you have your installed cable going up to the sat-finder, then a short cable from there to the LNB and it works; take out the sat-finder and short cable and attach your installed cable directly to the LNB and it's no go; right?

If so, take a look at the F connector at the end of the installed cable. It could be that the central wire that makes the connection is too short (through a bit of cable tugging or whatever) to work in the LNB socket, but long enough for the sat-finder.



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  Reply # 392658 16-Oct-2010 18:15
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Thanks Xarqi,

That makes a huge amount of sense - I will try it and let you know. Thank you



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  Reply # 392697 16-Oct-2010 19:23
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Tried Xarqi's suggestion to no avail. Even used a completely different cable with inner core 8-10mm long. Still only works with sat meter inline!!!

I'm wondering if I have a built in switch in the LNB thats switching over only when the meter is connected i.e. I increase or decrease the voltage and force a switch when the sat finder is connected. This deduction is only reasoned from surfing the net  -I still don't know what's happening. Finally wrapped the sat finder in a plastic bag and smothered it in duct-tape - oh for the love of technology Yell



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  Reply # 392700 16-Oct-2010 19:33
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You also need to make sure the LNB power on option is enabled on the box :)

Else there will be no juice to power it




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  Reply # 392729 16-Oct-2010 21:11
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Hi Oblivian,
Sat finder requires power from the Receiver in order for it to work...Therefore power is most definitely getting to the LNB. Any other thoughts please?

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  Reply # 392736 16-Oct-2010 22:21
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I had a funny situation where everything seemed fine with the decoder and it worked fine on one dish but not another - I run a strong sat decoder and I tuned off the 22khz now it works fine on both dishes.

Some Sat Finders don't pass the 22khz tone so that would explain why it works with the sat finder but not without.

On the strong decoder you find the setting under, Menu, Installtion, Dish Setting

Hope that helps

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  Reply # 392812 17-Oct-2010 12:41
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What type of LNB do you have?



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  Reply # 392835 17-Oct-2010 14:09
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I can't get up on the roof today as a lent a mate my ladder. The LNB is a Ku something from Sanyo (I think). It's oval in shape, built with two throats of approx 22mm. It has 4 connection points (I've tried all of them) with different cables with the same result.

The thing is everything worked with the same equipment prior to moving, storing and replacing the dish to the exact same location (new roof). Therefore the wattage etc should remain the same. Further the freeview receiver is a DVTS (small new(ish) one). It doesn't seem to have any satellite setting on it. Seemingly you can only choose to which satellite you would like to use I've selected default all).

I guess I will have to fork out dough on a new LNB or get a professional in to take a look. Any recommendations...I'm in Forrest Hill North Shore.

Thanks for all your inputs guys.
Rich



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  Reply # 392837 17-Oct-2010 14:28
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Found info in how to changethe 22Khz and will try all the options here. Thanks Nitrotech for pointing me in this direction. Below is the link to the DTVS instruction manual in Pdf format.


http://www.freeviewnz.tv/images/uploads/pdfs/DTVS_IB.pdf

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  Reply # 392994 18-Oct-2010 01:30
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It's a pretty safe bet that the 22khz switch issue is the problem.

It's most likely one of the Sharp LNBs that are currently in use by Sky.

When lined up correctly, with 22kHz off, you will get the D1 satellite, with 22kHz on, you get C1/D3.



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  Reply # 393024 18-Oct-2010 08:35
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Thanks RunningMan, I'll try this evening and let all know the outcome.
Rich


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  Reply # 393167 18-Oct-2010 14:05
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An alternative, but similar issue may be that the sat finder is actually putting 22kHz on the line (depends if your sat finder has this option), so the LNB is switching to the second throat, which you have now inadverantly lined up with the wrong satellite. When you take the sat finder out and it removes the 22kHz, the LNB reverts to the primary throat, which is pointing at nothing...



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Reply # 393439 19-Oct-2010 07:58
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Thanks RunningMan & Nitrotech
All is working 100% now. Through the Menu I switched the 22K on and all is now perfect. RunningMan sure did hit the nail on the head with his last post. Thanks to all - its really is appreciated.

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