My first toroidal 90 multi dish install with 20 lnbs

[godzillafan]

If not there is some major fault with the dish, damaged or warped in some way....

If he tweak the LNB at 0 position for AZ/EL he doesn't need to do much more except tweaking skew for the LNB when he skews the whole dish, it not hard to adjust a Toroidal but you need to have all angles correct and what you're doing, it's easy to get confused.

Skewing the dish doesn't affect the position in the middle, only angle of LNB skew position, however it does affect the edge positions.

It's 1-3 steps installing it.

1. Install LNB at position 0, tweak AZ/EL

2. Install one LNB each on the edges, eg the satellite furthest away on the rail, adjust AZ/EL, if you don't get signal try skewing the dish a bit, if you get signal now adjust AZ/EL again to max and then tweak the signal by skewing the dish, check back and forth for edge LNB and center LNB and you will find a compromise but most often you max the signal on both positions.

3. Add the rest of the LNBs you want and tweak them on the rail only, then skew the LNBs for best signal.

Thanks L

This is my next steps as I have got the back plate screws correct now (I hope waiting for H to confirm).

I was now going out to recheck 19E on 0 - get the best signal I can.

So I will also need to add 2 other lnbs furthest away on the dish - which in my case will be 42E and 5W and do as you say in point 2.

I will update here shortly..

I guess I am nearly there just a little more time and effort

 

[sonnetpete]

The back of the dish now looks identical to the photo Heuvos posted. I'm sure he'll confirm this.

 

[RimaNTSS]

Gentlemen, I am sorry, I think I do not understand fully what is going on here! Are we still speaking about tuning of T90 or about how to screw screws? Perhaps author simply needs little bit more time to understand how this great antenna behaves when some of the adjustments are being performed. Spring is coming that means we can spend more time on our hobbies. That is impossible to teach somebody to play piano just by instructing. Practice - that what is needed.
Talking about screws at the back of T90: I think it is better to have as much as possible of those screws, but just make sure they do not create an obstacles to get right skew of antenna. This is back of my T90

 

[godzillafan]

Hi Guys

Back again after shipping off the wife to take the kids to swimming - I had an hour to redo the dish.

Some more pics and updates

I think I hit the 104! - I have taken a picture but the angle is not good to see but when I look at it its under under 105 bar sign.

Also took a picture ofd the tv showing some stats and then of the vu+ tuned in - thest i got was 74 snr

 

[sonnetpete]

Well, that is at least progress :-righton . Next time you have an opportunity to work on the dish try and get the best possible results by fine tuning the LNB skew for 19°E with the dish face fixed at 104°. You can then try for the sats at either end of your bar. Don't expect it to work perfectly at your first attempt, there will always be fine adjustments to make and the signal quality may be compromised with LNB's at such extremes. Rima is right to advise practice, learn from mistakes don't be frustrated by them.

 

[godzillafan]

Well, that is at least progress :-righton . Next time you have an opportunity to work on the dish try and get the best possible results by fine tuning the LNB skew for 19°E with the dish face fixed at 104°. You can then try for the sats at either end of your bar. Don't expect it to work perfectly at your first attempt, there will always be fine adjustments to make and the signal quality may be compromised with LNB's at such extremes. Rima is right to advise practice, learn from mistakes don't be frustrated by them.

Cheers R + S

Got there isn the end and its now a case of taking my time and adding 1 lnb at a time.

I planned to add 28E first as the wee ones are going nuts that their cartoons have gone again.

After taking 'days' getting the 104 correct, I know that each of the lnbs which are going to be put on the bar wont tune in a flash.

More reports to come and pictures

Thanks to all once again - could not have done it without you guys

 

[sonnetpete]

I planned to add 28E first as the wee ones are going nuts that their cartoons have gone again.

OK, put on 28°E if you must (if only to preserve your sanity) but then concentrate on the two most extreme LNB's. Once you have a satisfactory compromise between the two end LNB's and your central one (as far as signal quality levels) then you'll find the others should slot in with less trouble. Good Luck.

 

[Huevos]

the vu+ tuned in - thest i got was 74 snr

There is still something wrong because that should be 99% SNR, i.e. off the scale. Sonnetpete can give you a better signal report from where he is, but for me that transponder is booming in on the T90.

BTW, why can't you do a proper screen grab instead of taking a picture of the television with a camera (and flash)?

 

[sonnetpete]

There is still something wrong because that should be 99% SNR, i.e. off the scale. Sonnetpete can give you a better signal report from where he is, but for me that transponder is booming in on the T90.

BTW, why can't you do a proper screen grab instead of taking a picture of the television with a camera (and flash)?

Huevos : I only get 66% SNR on 19°E but the LNB is off centre on the Triax as I have 45°E on one end. Possibly the LNB skew needs tweaking as well. I'd show you a screen grab but my network to the VU+ is down for some reason. Maybe Godzillafan hasn't got round to networking his VU+ yet?

 

[godzillafan]

OK, put on 28°E if you must (if only to preserve your sanity) but then concentrate on the two most extreme LNB's. Once you have a satisfactory compromise between the two end LNB's and your central one (as far as signal quality levels) then you'll find the others should slot in with less trouble. Good Luck.

There is still something wrong because that should be 99% SNR, i.e. off the scale. Sonnetpete can give you a better signal report from where he is, but for me that transponder is booming in on the T90.

BTW, why can't you do a proper screen grab instead of taking a picture of the television with a camera (and flash)?

Huevos : I only get 66% SNR on 19°E but the LNB is off centre on the Triax as I have 45°E on one end. Possibly the LNB skew needs tweaking as well. I'd show you a screen grab but my network to the VU+ is down for some reason. Maybe Godzillafan hasn't got round to networking his VU+ yet?

Cheers guys

With the weekend coming and the easter break next few weeks - I got to have some tv or the wife will kill me. keeps the wee man happy with his Kix and POP channel.

Any signal on that will do for now and I can sort that out afterwards as i want to tackle this end lnbs first.

The two end lnbs for me will that be 45E and 12.5W as the bar is extending that way or should i work on 42E and 5W??

screen grab never heard of that before - the only thing I have done with the vu and a computer is put some updates on it for blackhole and added catseyes channels lists. I am still learning the computer part element.

I wanted to add all lnbs first and get them work and then plug them into the emp!

The snr is a issue as I dont know how everything is getting into the 90%s = as the few times I have hit a signal the best I got was 80% on some of the transponders.

Is there a guide on screen grabs on here - will look at that

thanks again for all the help

 

[Huevos]

Huevos : I only get 66% SNR on 19°E but the LNB is off centre on the Triax as I have 45°E on one end.

Ok, can someone in the UK with a Vu+ and say an 80cm dish centred on 19.2E (motorised or fixed) give us an SNR report for ZDF HD.

My T90 is centred on 9E so 19.2E is 10º off centre and running a crap LNB that I rescued from the dustbin, and as shown in the screenshot above, has an SNR of 99%. So either that transponder is much stronger here than up there, or there is something wrong with how Godzillafan's T90 is set up.

 

[Huevos]

Any signal on that will do for now and I can sort that out afterwards as i want to tackle this end lnbs first.

There is a step by step procedure and you need to follow it. Once you have this correct everything else will just fall into place. There is no point adding additional LNBs until you correct whatever is wrong with the central LNB. It's the same on any multisat system. The central LNB must be perfect before considering adding any further LNBs. If you are worried about upsetting the missus set up a minidish for 28E. Just stick it down at ground level somewhere. No need to even fix it.

 

[Huevos]

Is there a guide on screen grabs on here

Just open a web browser on your PC, stick the IP of your Vu+ in the URL bar of the browser and press ok. That will open OpenWebIf and from there you have full control of the box and to make screen grabs etc.

 

[godzillafan]

Ok, can someone in the UK with a Vu+ and say an 80cm dish centred on 19.2E (motorised or fixed) give us an SNR report for ZDF HD.

My T90 is centred on 9E so 19.2E is 10º off centre and running a crap LNB that I rescued from the dustbin, and as shown in the screenshot above, has an SNR of 99%. So either that transponder is much stronger here than up there, or there is something wrong with how Godzillafan's T90 is set up.

There is a step by step procedure and you need to follow it. Once you have this correct everything else will just fall into place. There is no point adding additional LNBs until you correct whatever is wrong with the central LNB. It's the same on any multisat system. The central LNB must be perfect before considering adding any further LNBs. If you are worried about upsetting the missus set up a minidish for 28E. Just stick it down at ground level somewhere. No need to even fix it.

Thanks H

It will be great to know the snr for this area or Wales or even the UK - the best i ever got was 80%, even when I had the dish on 28e for a while, the snr would hover around the 70-80marks.

Must be a Caerphilly - Welsh Valleys thing as the reception is not always the best. The phones receptions are no better.

Will dust off the smaller dish and stick that on the floor somewhere and get that running on a temp basis.

While I wait for the snr report to come for 19E in this area - do I carry on working on the 19E 'tweaking' or move onto 42E and 5W on the main dish.

 

[sonnetpete]

....even when I had the dish on 28e for a while, the snr would hover around the 70-80marks.

Will dust off the smaller dish and stick that on the floor somewhere and get that running on a temp basis....

Now that would be an interesting experiment, get the small dish aligned on 19°E first, run it through the VU+ and compare it's SNR with what your getting from the T90. If you get better results from the smaller dish (and looking at the footprint a 50cm dish should give excellent reception) I guess there's still an issue with the T90. If it's not as good maybe it's down to your location or some undiscovered line of sight problem.

 

[sonnetpete]

As a reference for you (though bear in mind my location) I've just propped up a Zone 1 $ky dish against the wall outside and got a 55% SNR reading from 19°E on my meter.

 

[Huevos]

Must be a Caerphilly - Welsh Valleys thing as the reception is not always the best. The phones receptions are no better.

Nothing to do with that as the satellite is line-of-sight. Can we have a photo looking towards the satellite that shows there is no blocking object? And don't move on to the next step until we have this 19E LNB nailed. Also get the skew of the 19E LNB correct. Once you have the dish at 104 stand in front of the dish and the cable should be exiting the LNB almost vertical (probably about 32 minutes around the clock). Experiment with the LNB depth too.

 

[Lazarus]

I certainly agree about the LNB depth .............. having just fitted a Black Ultra, the biggest improvement by far came from the ability, with its long neck, to move it further towards or away from the dish and so to get it more accurately at the correct focal point.

 

[godzillafan]

HI S

how this for a setup. Its on 28E mind you as I had to get that working b4 the wee man came home as he is really missing the cartoons.

about 10mins all in getting the together. At first I have a hand rake holding the dish in place but this is what I got

1 flower pot, 1 old broom on the patio floor next to the wall.

So far best snr I got for a bbc2 91% and the worse so far after a quick glance 40% and that was POP the kids channel as the wee man is missing oscars osasis!

I did not try 19e but no lie from the experience to plugging the wires in and out of lnbs over the year we alway got up to 40 to 80-90% on 28E and up to the 70s for 19e.

We are in caerphilly, near the Welsh Vallies - cable does not even get here, phone receptions are hit and miss (not sure if that makes a difference) but sats maybe affected from area position we are in.

I think I need some more local welsh input.

If I only get the 70s maybe 80s top snr on 19e at centre - what will that do to the other lnbs???

 

[godzillafan]

Nothing to do with that as the satellite is line-of-sight. Can we have a photo looking towards the satellite that shows there is no blocking object? And don't move on to the next step until we have this 19E LNB nailed. Also get the skew of the 19E LNB correct. Once you have the dish at 104 stand in front of the dish and the cable should be exiting the LNB almost vertical (probably about 32 minutes around the clock). Experiment with the LNB depth too.

I certainly agree about the LNB depth .............. having just fitted a Black Ultra, the biggest improvement by far came from the ability, with its long neck, to move it further towards or away from the dish and so to get it more accurately at the correct focal point.

i am making a note of this as the flower pot dish is working - but the snr's are still in the 70-90%. I will be us there again soon to tweak as much as I can and log the figures.