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490 posts

Ultimate Geek
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Topic # 82204 24-Apr-2011 09:32

I'm getting D2 channels when I do a blind scan, the thing is I don't know when the DishTV receiver is using the left LNB or the right as I have 2 LNB's on the one dish.
I remember a few months ago I had both D1 and D2 working.... Then a few weeks ago I changed some settings on the receiver to try and get SBS which is when I lost D1.
I can select the D1 satellite from the menu then do a blind scan but it comes up with a bunch of D2 channels :P 

My receiver: DVB-S6800PLUS

I have 2 LNBs on a 60 or 70cm? dish (what ever it is that sky suplies) and stuck 2 LNBs on it.


Also what are the following for? (inside the [ ] are the options it gives)
- DiSEqC [DiSEqC1, DiSEqC2, DiSEqC3, DiSEqC4, off]
- DiSEqC [off, A, B]
- LNB Power [off, 14v, 18v, auto]
- LNB 22kHz [off, on, auto]
- Positioner [Disabled, DiSEqC 1.2]
- 0 / 12 Volt [0 Volt, 12 Volt]

I have it set as follows at the moment: (For D1)
Both LNB's have a freq of 10750 so I think I got that part right... but not sure why there is a freq 1 and 2...
LNB Freq 1 = 10750
LNB Freq 2 = 10750 
LNB Power =  Auto
LNB 22kHz = Auto 
Positioner = Disabled
0 / 12 Volt = 0 Volt

So is the DiSEqC only used if you have a motorised dish?
How do I tell D1/D2 to use an LNB... 

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6030 posts

Uber Geek
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  Reply # 461928 24-Apr-2011 10:07
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Edit, just read your post again, so you put the two LNBs on it, its not a Sky dual throat LNB. How have you combined the two, presumably a 22kHz switch, if so then depending on how you have wired the switch the presence or lack of 22kHz will switch it between one LNB or the other.

Cyril



490 posts

Ultimate Geek
+1 received by user: 7


  Reply # 461940 24-Apr-2011 11:39

Thanks for the reply,
Using 2 signal LNBs going to one 22kHz switch.

OK, so now it seems like I get ~79% signal if I have the "LNB 22kHz" on or off, but when I switch between on/off the signal does go to 0 for a second or two then back to 79%...


Q: Is the signal just the cabling from the sat receiver to the LNB?
As it seems to have the same signal regardless of where I point the LNB :P

Just selecting different columns in the CH Search menu can get the signal to apear and disappear... all very temperamental


Whats the LNB Power for? Should it be 14v or 18v? (having LNB Power on auto I can switch the LNB 22kHz from on and off and the signal will flicker but always come back to ~74%)

I read somewhere that the sky dual LNB uses the 22kHz to switch between the 2, so if I had the sky dual and one single LNB plugged into the 22kHz switch how would the receiver switch between the 2 LNBs in the dual sky LNBs?

Also do I need a specific LNB to receive D1? or can a LNB that used to get D2 be used to get D1 when moved in the right place?

...

The funny thing is that I have both single LNBs setup on the dish now and both of them seem to be getting D2 channels. I even unplugged the one that should get D2 channels and I still get D2 channels off the D1 LNB position. (if that made any sense :) )

Even stranger is that I get signal and quality on National Radio but I hear nothing...
Might get a new sat receiver, this DVB-S6800PLUS is useless, it does what ever it feels like.

I'll see if I can hunt down the site that had the template I used for the dual setup and post it later.

 
 
 
 




490 posts

Ultimate Geek
+1 received by user: 7


  Reply # 461948 24-Apr-2011 12:41

*edit

OK so fiddled around with the placement of the D1 LNB, moved it to the opposite side that it is suposed to be on and now I get freeview (1,2,3,4,prime etc), heh strange but it works :P

Now how do I get SBS?

I'm doing a scan on:
Freq: 12646MHz
Pol: Vertical
SR: 12600

as http://www.geekzone.co.nz/forums.asp?forumid=83&topicid=38526 says but it doesn't pick it up.

Having a look on http://www.lyngsat.com/optusd1.html there are several SBS transponders but none of which are 12646MHz what is shown in geekzone, is there a new TP that should be used now as that post is a few years old?

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  Reply # 461964 24-Apr-2011 14:42
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Is your receiver a Freeview certified one?? If it is you may not get SBS..




Regards,

Old3eyes


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  Reply # 461969 24-Apr-2011 15:35
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Should be 12648V




Ross

 

Spark FibreMAX using Mikrotik CCR1009-8G-1S-1S+

 


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490 posts

Ultimate Geek
+1 received by user: 7


  Reply # 461978 24-Apr-2011 16:21

After a bit more moving around of the dish/LNB I have managed to get SBS!
Though the sound/video is a bit digitised so might hunt around for a cheap bigger dish.
Turns out I have a 60cm dish.

FYI I used
Freq: 12646MHz
Pol: Vertical
SR: 12600

Which seems to do the trick, you just have to have the dish/LNB set right.

Thanks for all your support guys.

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