LNB skew setup for zone 2 dish Fta 28.2e

[ALIEN1X]

Hello
How do I setup lab scew for zone 2 dish in East London in Essex area for receiving FTA channels 28.2 e

I have a quad lnb that came with the elliptical zone 2 dish, the lnb has dial markings in degrees?

[bmitie]

Lnb skew. was :confused: from the front twist/turn lnb clockwise to 13.3 %. or until you get a picture then fine tune on V and H by moving in and out.

[ALIEN1X]

ok so algn the dish horrizonatlly and vertically the adjsut the screw?
Its a MK4 zone 2 dish sot he lnb as a dial marking to twist but nothing to move it back an forth by?

[bmitie]

You are taking me back in time, in the old days a sky lnb would come ready to fix to the lnb arm so the skew would preset and the focal length. In your case it may be necessary to adjust the focal length so you don't tighten the collar fully until you get the V channels and the H channels, from what I remember itv are V and BBC H. There are no markings for focal length. The last time I did a sky dish I used sky news and al jazeera, plus a few weak channels, when they were of I just tightened up.

Here is a pic of an octo lnb for sky. Note the position of the collar/neck that was not a fluke.

61686

[ALIEN1X]

:confused:

[Joe_90]

Looking at the LNB from the front (facing the dish), the bottom of the LNB where the cables exit, should be pointed approximately at 7 o'clock as shown in@bmitie's photo. I don't think you can move a Sky LNB in and out as it should be pre-focused for the dish.

[ALIEN1X]

Thanks Sorted using online lnb calculator so for dish at 28.2e with LAT:51.5649 LONG:0.2085 dish elev:25.4 the screw = -20.5 h, 69.57H.
So I set it at around -20.4

[Joe_90]

Thanks Sorted using online lnb calculator so for dish at 28.2e with LAT:51.5649 LONG:0.2085 dish elev:25.4 the screw = -20.5 h, 69.57H.
So I set it at around -20.4

What does that mean? SKEW refers to the position of the LNB in its holder. In the UK the LNB is slightly twisted so that the bottom of the LNB points to approximately 7 o'clock when you are aligning with Astra 28.2E.
You are referring to "scew", "screw", so I'm not sure if we are discussing the same thing:confused:

[ALIEN1X]

I was meaning to say scew

[ALIEN1X]

I tried the E2 box and get the following
Bloomberg HD on 11686v 23000
CNN SD only
total channels 426
single sat scan 28.2e
Network = no

I also tried another samsung tv that had channels scaned form another diffrent dish so connected that up and can see the all the channels on the same dish
So I assume I have to manually scan the channels im missing in built in sat tunner.
Not sure if my tv allows that?

[abu baniaz]

You are getting roughly half the channels you should.

Did you connect E2 receiver to the exact same wire? Is there a faceplate there?

Let us just stick to your enigma2 receiver for sake of ease. Please post a screenshot of the scan settings page that you used.

[abu baniaz]

Please post a picture of your dish from the front if you can do it safely.

[Joe_90]

I was meaning to say scew

You mean skew? What does this mean? the screw = -20.5 h, 69.57H

[ronand]

Time to buy/borrow a satellite meter. This sort of guesswork is madness

[BrokenUnusableAccount]

Thanks Sorted using online lnb calculator so for dish at 28.2e with LAT:51.5649 LONG:0.2085 dish elev:25.4 the screw = -20.5 h, 69.57H.
So I set it at around -20.4
Ideally you would adjust both skew and focal length for best signal to noise ratio or lowest error rate.

[abu baniaz]

Let's continue in one thread to get you sorted easily. I have closed the the CNN HD thread. The faceplate thread may be relevant as well as your upgrading LNB on motorised dish.

Are you still using a splitter?
Please draw a diagram of your complete setup. All TV, splitters, faceplates.
Please post a screenshot of the scan settings you are using in Enigma2



I chose the above config to avoid signal conflicts when i was using a sat splitter between the 2 tvs which I then learnt that it causes channel conflict problems.



Please draw a diagram of your complete setup. All TV, splitters, faceplates.

Please post a screenshot of the. scan settings you are using in Enigma2

[ALIEN1X]

screen dump is not working i did see tutorial,
when i tried its says Firefox can't establish a connection to the server at 192.168....
The site could be temporarily unavailable or too busy. Try again in a few moments.
If you are unable to load any pages, check your computer's network connection.
If your computer or network is protected by a firewall or proxy, make sure that Firefox is permitted to access the Web.
No spliter used
see attachements

[abu baniaz]

That LNB is too far in. You ought to move it back.

If that does not solve it, take the faceplate off, use a barrel connector to connect the wires.

If screenshot is not working, double check IP address. Otherwise take a picture using your phone and camera.

[ALIEN1X]

I can try to move the lnb back but by how much?
I could move it back if unitll I get a imprpved signal using satv meter?

At present I get approx 85-90% signal qiuality, 10714mhz gives 100%
I will try the screen shot again or use a camera

[bmitie]

You adjust the lnb by checking a horizontal channel and then a vertical channel. For that LNB I think you should move it all the way back so neck of lnb is hitting collar. ITV is V and BBC is H. All from memory. You dont need a sat meter or the ineternet. Use the old way, get a good picture and signal reading. What box and image are you using?

[ALIEN1X]

My box is Extrend ET8500 linux E2 box

[abu baniaz]

LNB should be all the way to the collar. See attached picture.
Edit: Another user has posted a picture of theirs here: https://www.world-of-satellite.com/showthread.php?64191-looking-for-advice-on-lnb-adaptor-type-to-get&p=511817&viewfull=1#post511817

Can you please post a pictures of:
The LNB once you move it.
Scan settings you use on your Xtrend.

[ALIEN1X]

I have now pushed lnb back to collar
maintained scew of -20.4 Based on online sat calculator
Performed channel scan of FTA channels at 28.2e and get 426 CHANNELS on ET8500 box
I tried a scan on my samsung smart tv inbuit sat tuner an that gave me 1185 Channels fta tv ONLY
Both metghods did not give me for example CNN-HD, CNBC-HD etc I assume some of these channels have ot be manually scanned.
Manual scan ON samsung TV has limited oprtions on symbol rates to choose and no option to type it in, but allows to type in the H and V values
I have posted the scan settings and results on my ET8500617816178261783

[ronand]

Are you only getting horizontal channels? If so your skew is wrong or else you have a faulty lnb. Would you ever buy or borrow a satellite meter. Even the cheap 5 pound analog meters will do the job to maximize the signal.

[abu baniaz]

Don't enable the "free channels only" mode and scan again please. Report back with how many services your scan finds.

[ALIEN1X]

this is another scan without free channels

[ALIEN1X]

this is scan with network enabled FTA scan

[abu baniaz]

Your dish/LNB is slightly out of alignment. You will need to make very minor adjustment.

Please stop enabling clear before scan for now. What is the IP address of your receiver.

Go to Signal finder. Select predefined transponder, select the transponder for CNN HD. Press on edges of dish one by one and see if signal improves. If you can't see signal level from where dish is, get a helper to watch while you tweak. There are apps available on phone to show signal levels too. If everything is correct, you should get 850+ channels on your Xtrend.

Please forget the TV for now.

[ALIEN1X]

Your dish/LNB is slightly out of alignment. You will need to make very minor adjustment.

Please stop enabling clear before scan for now. What is the IP address of your receiver.

Go to Signal finder. Select predefined transponder, select the transponder for CNN HD. Press on edges of dish one by one and see if signal improves. If you can't see signal level from where dish is, get a helper to watch while you tweak. There are apps available on phone to show signal levels too. If everything is correct, you should get 850+ channels on your Xtrend.

Please forget the TV for now.

I will try the above but will have to use my sat meter while touching edges of dish, at presnet it is 85-90% signal level/quality
I have also attached pics of LNB as requested before, the LNB is set at -20.4 for LAT:51.5649, LONG:0.2085 for 28.2e
The ip of Extrend reciver is 192.168.1.19

[ALIEN1X]

OK I have now adjusted LNB and dish as best can approx 80% signal quality
If I go to singal findder I can scan and find individually the following
Bloomberg HD 11686v 23000 s/r
CNN HD 11671H 2300 S/R
CNBC HD 12285V 27500S/R
I did another scan and could only pick up 710 channels which may mean I have to manally scan missing channels that that I want.
Not sure how to add manually scaned chanels to existing channel list.
See acttached scan.

[abu baniaz]

That LNB is turned too much. Straighten it up a bit so it is half the twist you have now.

[abu baniaz]

Which image is on the Xtrend? There should be a function to update xml file, update the xml file before next scan please.

[ALIEN1X]

You mean turn the LNB from -20.4 back to -10.4?
My currnet image is 5.1.025
I will update my xml file

[ALIEN1X]

I have now turned rotated my LNB From -20 to -10
I have updated my xml file
current image is vix 5.1.025
Rebooted
re-scanned channels on 28.2e
channels found including scrambled, no network scan = 879
I get Bloomberg HD, CNN HD, CNBC HD picked up

hope all that above is ok?

now that leaves me the tv built in sat tunner?

[abu baniaz]

Most probably sorted. Good work. I also got 879. However, we recently changed the services that are considered valid. Previously it used to be 950+ services found, so that may be a reason for slight difference. I am only guessing, it could be just a coincidence. Can you try on 5.4 008 please?

Once your E2 receiver is getting all services, we will know for definite that the dish/lnb are aligned properly. A scan on your TV should then find all the services on 28.2.

Just for reference purposes, pasting the following should get you a screenshot. Don't worry about it if it doesn't work.


http://192.168.1.19/grab?format=jpg

[ALIEN1X]

im upgrading from 5.1.025 to 5.4.008 as advised.
The upgrade process has frozen for over 10mins what I see is the open vix support page - blue coolour screen
the vix iocon has stoped wizzing round and is just static for 10mins +

[abu baniaz]

You can't update between image ranges. You must flash. If image manager is not working, try by USB

[ALIEN1X]

I was using USB, had to try the second time and it worked.
scanned channels agiain including scrambled, no network scan, keeping existing channels = 500
tried it again including scrambled, no network scan, keeping existing channels = 879

the samsung smart tv sat tunner finds more channels =1326 but again it miss out bloomberg HD, CNN HD AND CBNC HD, it kind of shows these as web streams under TVplus so one needs internet connection always
the manula scan on the tv is not that great

another question is how do I setup upper and lower osilators on LNB thats what it asks for on tv currently set as lower:9750mhzmhz,, upper:10600, transponder 10714h/L

[bmitie]

whats the model of the tv? Are you deleting channels on the tv before you scan? 1326 is a lot even including radio. Lnb has 4 ranges.

[ALIEN1X]

The TV is a Samsung UE43TU8507
I'm not deleting channels when i scan for fta TV only or all channels
I will try to scan again on TV as not done done this since altering the dish for the linux box.I will try for for all servcies including scramled and and network

[adm]

another question is how do I setup upper and lower osilators on LNB thats what it asks for on tv currently set as lower:9750mhzmhz,, upper:10600, transponder 10714h/L

I assume the LNB is suitable 28.2E in which case the TV or Set Top Box (STB) will select automatically the correct local oscillator frequencies when you select the TV channel/transponder.

On a traditional/legacy LNB there are 4 modes of operation and to switch between the modes the tuner connected to the output of the LNB sends back up up the cable 3 possible control signals.
1) 12.5V to 14.5V dc
2) 15.5 to 18V dc
3) a 22kHz tone of around 0.5V peak to peak

These select one of the 4 modes
12.5V to 14.5V with no tone = vertical polarisation low band
12.5V to 14.5V with tone = vertical polarisation high band
15.5V to 18V with no tone = horizontal polarisation low band
15.5V to 18V with tone = horizontal polarisation high band

The low and high bands refer to the local oscillator frequencies of 9750MHz (9.75GHz) and 10600MHz (10.6GHz) - the frequencies you are asking about.

[bmitie]

I had a quick look at the guide and it says when searching have it on auto. If you enter values it will only scan certain transponders. The channels you are not getting, ie CNN HD etc are in the highest frequency band. the guide is not very clear.

[abu baniaz]

There is something wrong. Why would you get 500 on one scan and 879 on another scan using identical hardware?

Some LNBs exhibit a fault when two devices are accessing it. Disconnect the wires to TV and scan using Xtrend. If you consistently get 850+ services, then LNB could be faulty. Other probability is the faceplate.

Your dish/LNB are aligned correctly. Don't be tempted to adjust it.

[ALIEN1X]

I did auto scan on samsung smart tv sat tunner:
For all channels I got 1287(with network on as there no option in auto mode and channel clear on)
with FTA (FREE channels only option I got 1271 channels

I tried manual scan and got 608 tv channels

None of the scans gave me Bloomberg HD, CNN HD, I did get CNBC HD, all these missing broadcast channels appear as HD or 4k live streams under TV plus via internest connection.

I have a feeling that the samsung tunner has been designed to offer some of the channels as streams under TVplus

Also the scan options for all FTA channels for built in TV tunners appear very limited I guess they were intended for Freesat use although they have options for scrambled, free channels as well as freesat

[ALIEN1X]

I really apprecaited everyones help for setting up my Extrend box and sat dish. Thankyou
No I know tv builtin tuners a quite lame