advice diameter dish and minimum 3 lNB's

[bokkie]

Re: advice diameter dish and minimum 3 lNB's

I think 2.2 º would be a bit to tight. Don't think they make 2.2º monoblocks either.

[kalpikos]

Re: advice diameter dish and minimum 3 lNB's

What's the minimum angle distance between LNBs ?
Is it possible to install 2 x 40mm LNBs at 28,2° and 26.00° ?

No mate, it is impossible for 40mm, but can be done by using slim lnbs.

I have done this in the past with success on a 120cm dish
with center the 28.2E and and very very close to it the lnb
for 26E with a little angle between them.

Here is a picture that shows how the lnbs must be fitted.



These are the alps lnbs that can be used for 3º.
If you use the inverto slim lnb then you will take better results.

[purenirvana]

Re: advice diameter dish and minimum 3 lNB's

I have done this in the past with success on a 120cm dish with center the 28.2E and and very very close to it the lnb
for 26E with a little angle between them.

Would which LNB to centre not depend on signal strength according to your location?

If say 26e was your weaker of the two satellites, would you not be best getting your strongest signal with that LNB being centred, putting 28.2e alongside as that is your stronger satellite?

[gianni253]

Re: advice diameter dish and minimum 3 lNB's

I've just read specifications of T85 Multifocus Maximum and minimum angle is 4°, so it's unusable for our friend haramo ...

[kalpikos]

Re: advice diameter dish and minimum 3 lNB's

Would which LNB to centre not depend on signal strength according to your location?

If say 26e was your weaker of the two satellites, would you not be best getting your strongest signal with that LNB being centred, putting 28.2e alongside as that is your stronger satellite?

Both 28.2E and 26E are weak satellites for my country.
I'm more interested in 28.2E, so I have put the 28.2E
in the center and next to it the 26E.

The differences in signal strength between being in the center
or in few degrees left or right of it.... are not huge.

Of course, major factors for that are the dish size and the signal strength.
For example, for 120cm dish and for a strong satellite it's the same
if you put the lnb to the center or put the dish 5cm away from it.
You will receive all channels without any problem.

Even for more difficult satellites a distance of 3cm
can't make the signal very weak to lose channels.

[joseram2000]

Re: advice diameter dish and minimum 3 lNB's

To all this there is much better to put a motor running very well and so capture all the satellites that are needed?

[kalpikos]

Re: advice diameter dish and minimum 3 lNB's

To all this there is much better to put a motor running very well and so capture all the satellites that are needed?

I agree with you my friend

I have 4 dishes with 16 lnbs ...
but do you know what I dream every day?...

A big motorized dish

I have spent a lot of money and... yes I hit the button and the channels
open very quickly one by one on a different satellites, but...
I dream a motorized dish.

Maybe the solution for our friend @haramo is a combination
of a fixed dish and a motorized.

[haramo]

Re: advice diameter dish and minimum 3 lNB's

I found the instructions of EMP centaury 8x1
about a sat receiver that don't support diseqc 1.1.
They say that can de used with diseqc 1.2.



please, If someone knows about that to confirm

At this moment my new triax 88 is installed and working, because my dealer had no multiblock of triax, I used my old universal rail. But have only 3 LNB's (astra 19.2, 23.2° and hotbird 13°) All are working well with Disqc 1.0.

If I follow you advise about the diseqc 1.2 I have enabled it (while switch type diseqc 1.0 is still on) but this is what I see if I enter the motorized system setting: I have signal on all the satellites except hotbird, without doing anyting.
and if I use the setting 'movement' (i can go east of wet), nothing happens.

Maybe you are thinking that I have a motorised dish? no I don't have it.

[kalpikos]

Re: advice diameter dish and minimum 3 lNB's

At this moment my new triax 88 is installed and working, because my dealer had no multiblock of triax, I used my old universal rail. But have only 3 LNB's (astra 19.2, 23.2° and hotbird 13°) All are working well with Disqc 1.0.

If I follow you advise about the diseqc 1.2 I have enabled it (while switch type diseqc 1.0 is still on) but this is what I see if I enter the motorized system setting: I have signal on all the satellites except hotbird, without doing anyting.
and if I use the setting 'movement' (i can go east of wet), nothing happens.

Maybe you are thinking that I have a motorised dish? no I don't have it.

I think that this trick with diseqc 1.2 can be done
only with EMP centaury 8x1 and not with all diseqc.

and... I know that you don't have a motorised dish.
I made only a suggestion for you.

[SatWaveDude]

Re: advice diameter dish and minimum 3 lNB's

I live also in Belgium

I would suggest a WaveFrontier T90 dish and 5 LNB's

for 13E + 19E and 23.5E you can use normal 40mm LNB's
for 26E + 28.2E you have to use 23mm LNB's (or mabe Smart Rocket Trs Single 40mm LNB's)
This way I would add 16E to receive
Also a suggestion EMP-Centauri DiSEqC switch S 8/1PCP-W2 (P.168-W) this have to be the V2 version not the older one!!!

I already have suggested the:

DiSEqC switch EMP-Centauri S 8/1PCP-W2 (P.168-W) can be used for his purpose as it supports GOTO protocol DiSEqC v1.2

Because of it's GOTO (motor position simulation) it would be the best option he got for his purpose.

Also it's quite cheap in price +/- 22 Euro's

[haramo]

Re: advice diameter dish and minimum 3 lNB's

I'm not sure if this is the switch you mean? I only see the name centauri



these are the specifications
DISEqC Switch 8/1


• Frequency range 950 - 2300 MHz

• DiSEqC-control 1.1, 1.2, 1.0 (inputs 1-4)

• Insertion loss 5 dB avg.

• Isolation 30 dB avg.

• Max. Current 50 mA

• LNB current Max. 400 mA

• Dimensions (WxHxD) 136 x 33 x 104MM

[purenirvana]

Re: advice diameter dish and minimum 3 lNB's

That looks like the right one to me Haramo

The specifications you've written match the EMP switch SatWaveDude recommended too.

[haramo]

Re: advice diameter dish and minimum 3 lNB's

according to satwavedude : Also a suggestion EMP-Centauri DiSEqC switch S 8/1PCP-W2 (P.168-W) this have to be the V2 version not the older one!!!

I need the V2. Are your sure the one I showed (picture with specifications) is the V2?