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let me count the ways . . .

Keeping your Dish Network stuff separate from your FTA stuff, is a real winning plan.
And for one thing, the chance the Dish receiver can work through your arbitrary switch matrix is improved.
With this layout, a Dish receiver would not work at all.
Also, removing three LNBs from your FTA switching matrix, frees up space for real FTA birds, and makes switch layout and design easier.

I took some time and went to the Spaun site to look up the hardware you listed.
It would have been a bit easier if the devices has been labeled for function on the drawing, but I'm working that out . . .

- 9 * SMS281F (2x8 switch)
this is a basic 2x8 unpowered multi-switch

- 16 * SAR411W (4x DiSEqC relay)
site did not list this device - found it, standard 4:1 diseqc switch

- 8 * SUR 420F (4x universal relay)
this is a diseqc uncommitted 4:1 switch, requiring diseqc 1.1 commands

Okay, remind me to never go to that site again! Talk about being difficult to find things!

I'll leave the details to others, but suffice it to say, a more attractive and workable layout, would be to consider some 8:1 diseqc 1.1 switches.
We have threads and reviews of a couple.
Didn't deal with 'em in the Switches Simplified thread though, as it was more geared toward beginners.
Your layout is well beyond "beginner" -

Also, for any such system, I'd want powered multi-switches.
I've thought long and hard about using 4x8 multi-switches, to reduce the hardware count.
(found some on a Sadoun deal recently, but didn't study their specs)
Problem is, of course, switching between the two LNBs on the 4x8 uses 22khz, and that means you couldn't use Universal LNBs, should that be necessary.
Probably not a major problem, but a point to be considered.

Good to talk this out and see what other ideas the guys come up with.
Never know what'll turn up! - :up

edit: just found something. Your dual-lnb over on the motor, requires more thought.
It needs to be treated as two LNBs, and possibly mapped through your switch matrix, using two of the eight positions.
Or not, as you see fit. But it needs to be dealt with.

another idea: It just dawned on me that for eight LNBs you don't really need 8:1 diseqc switches.
If you expand this idea to use 4x8 multiswitches, and eight 4:1 diseqc switches, you can run eight LNBs to eight receivers.

Getting DN of the T90 might be a good idea, but how about rain fading; even if we don't have much rain here in Phoenix?

One thing i couldn't figure out so far is how the "switch-capability" for the 1000.2 works. There are 3 LNB's and 3 cables. How can i connect 4 receivers without loosing one or the other L/R combination or a whole bird while using a switch (DPP44?)?
AND
what switch/diseqc-matrix is a DN receiver capable of?


True, SPAUN doesn't have the best website. But they have lot's of quality stuff.
I am not afraid of paying a little bit more to get GOOD quality. (less dB loss, etc.)

Right, powered switches... I forgot about that!

But the DN-site of my "arbitrary switch matrix", which needs some improvement , should still go to the whole matrix, in case i want to move a receiver from room A to room B without reconnecting all cables in the attic.

Ok, i will do some research regarding 4x8 switches (powered) and the 22khz problem.

Thanks! :up (...and back to the drawing board...)

Mr.Arizona said:

One thing i couldn't figure out so far is how the "switch-capability" for the 1000.2 works. There are 3 LNB's and 3 cables. How can i connect 4 receivers without loosing one or the other L/R combination or a whole bird while using a switch (DPP44?)?

Click to expand...

the switch is built in and the receiver usually can figure it out. The 1000.2 allows 4 satellite slots. 3 are on the dish (110,119,129) and you can add 148 or 61.5 if you want. If you add a switch, THAT becomes the switching mechanism. The internal switch is bypassed. Whay you want ot use a 44 switch with a Dish1000.2 is beyond me...unless you go bigger than 4 boxes

AND
what switch/diseqc-matrix is a DN receiver capable of?

Click to expand...

what do you mean?

Iceberg,

i don't want the DPP44 i was just curious how this works, because whenever i try to figure out how the "switching" with the 1000.2 works, i got the DPP44 installation manual.

What I mean is: So far i couldn't find much information about the DN receivers, so i don't know at which "level" of switch-matrix, like my first idea (see first post), they are not able to switch to the right signal.

Anyway, I'm right now on a simpler way to get the project going.

btw... what will happen if i have an LNB without 22khz and i send a 22khz signal to the LNB? I guess nothing, right? Should work without any problems, hopefully.

Mr.Arizona said:

i don't want the DPP44 i was just curious how this works, because whenever i try to figure out how the "switching" with the 1000.2 works, i got the DPP44 installation manual.

Click to expand...

I honesty dont know. You might wanna ask that in the DIsh forum.

What I mean is: So far i couldn't find much information about the DN receivers, so i don't know at which "level" of switch-matrix, like my first idea (see first post), they are not able to switch to the right signal.

Click to expand...

The dish box knows what satellites to look for. If the switch matrix isnt set up properly it wont find it. So if you had 110,119,129,148 on a DPP44 switch it would find the sats (as long as their aimed). But if you hook up 110,119,129 and say 123 port 4 will show X and probably screw up more than just that. I did an install where we accidentally had a non dishpro LNB for 61.5 plugged into a DPP44 (110,119,129,61.5) and when we did the switch test it made 119,129 and 61.5 all show X for some reason..so the dish box is kinda smart but not really

btw... what will happen if i have an LNB without 22khz and i send a 22khz signal to the LNB? I guess nothing, right? Should work without any problems, hopefully.

Click to expand...

if its a standard LNB correct