Will This Work

[ottid142]

My question was propably answered on our old sister site but with its downfall a lot of valuable info was lost.
I am trying to assist a friend with this set up. He previously had a Bev 500 set up in this location for 110 and 119, but wants to add 129 to the mix by changing the 500 to a 18x24 or 30x36 eliptical.
The main problem we are having is that to put any more coaxes through the wall of the house would involve a great deal of work so I am wondering if this setup would work using 21kHz switches.

[Mavrick]

You only need 3 switches for that set-up not 6, best to keep it as simple as possible........

[yostar]

Mavrick's setup will only work if the LNBs for 110/119/129 are DP LNBs. if they are Legacy LNBs it will not work.

tell us what kind of LNBs/switches you have on hand. any twins/quads? how many dishes can you put up?

[ottid142]

You only need 3 switches for that set-up not 6, best to keep it as simple as possible........


Mav
The problem with your suggestion is it wont work for his setup. Because of trees, belonging to a neighbor, he has had to mount the 82/91 dish on the side of the house close to the front and the 110/119/129 dish is on the back of the house almost diagonally opposite the other dish. He only has 2 coaxes currently going to the back of the house and it would be a great deal of work to add additional coaxes. That is why I am wondering if the switch setup would work. I am not concerned with the 82/91 setup at all, just the 110/119/129 setup.

The 82/91 LNBs are Legacys and are also hooked up to Subs the 110/119/129 LNBs will be Standards. I already know that going to the 1000 series DN dishes is not an option because of the power hog LNBs they use and the need to use a switch with a power inserter. (would need to install additional coaxes to do this.

[Mavrick]

Mavrick's setup will only work if the LNBs for 110/119/129 are DP LNBs. if they are Legacy LNBs it will not work.

tell us what kind of LNBs/switches you have on hand. any twins/quads? how many dishes can you put up?

Huh?

Legacy Single LNB's work fine with a diseqc switch.

[yostar]

diseqc is not the problem
problem will be watching 2 stbs on the same sat. Legacy LNBs use H & V polarization.
so if he watches a channels on the V pol. on one stb he will not be able to watch any H pol. channels on the other stb.

if he uses DP lnbs for 110/119/129 it will be OK b/c DP uses only H polarization.

if you can you use a DP LNB for 129 then you will not need that 3x4 switch

[Mavrick]

diseqc is not the problem
problem will be watching 2 stbs on the same sat. Legacy LNBs use H & V polarization.
so if he watches a channels on the V pol. on one stb he will not be able to watch any H pol. channels on the other stb.

if he uses DP lnbs for 110/119/129 it will be OK b/c DP uses only H polarization.

if you can you use a DP LNB for 129 then you will not need that 3x4 switch

Right, forgot about that with Legacy's, post 6 says "110/119/129 LNBs will be Standards" so that will not be a problem anyway.

[yostar]

"standards" (to me) means legacy - single LNB with 2 outputs.

that's why i was asking for "hardware" on hand :-) maybe we can change the setup, but need to know what items he's got to play with.

[Mavrick]

"standards" (to me) means legacy - single LNB with 2 outputs.

that's why i was asking for "hardware" on hand :-) maybe we can change the setup, but need to know what items he's got to play with.


OK, I think you and I are calling LNB's different things.....lol.

A Standard LNB can be connected to 2 diseqc switches via 1 cable from each port on the LNB.

[yostar]

OK, I think you and I are calling LNB's different things.....lol.

A Standard LNB can be connected to 2 diseqc switches via 1 cable from each port on the LNB.

ok

but that's when the problem of watching two stbs on the same sat comes in.
if you use a DP LNB then you'll be OK, but if you use a Legacy LNB then you will only watch one polarization not the other.

a DP LNB will work on 2 stbs, b/c it uses only one polarization on both outputs.

a Legacy will work on 2 stbs on the same polarization - V or H, NOT both at the same time.
so with a Legacy lnb, if you watch e.g. CNN on one stb, which is on 119W and V polarization, the second stb will not be able to "see" H polarization channels. 2nd stb will only be able to "see" channels on V polarization.
Legacy LNB is kind of like linear LNB, it uses 1 out for V polarization and the other for H polarization, that's why it needs to use a 3 x 4 switch for more stbs. if you use one stb, it will switch from V to H polarization on it's own on the same output (most/old linear lnbs don't switch like that)

that is the diff. between DP and Legacy.... :yes: that's why he needs to tell us which LNBs he'll use (DP or Legacy)

[Mavrick]

Yes, I agree with you there, but I think Legacy & Standard are 2 different kind of LNB's. I have always known "Standrad" LNB's to work more like a DP would as far as connecting to 2 diseqc-switches.........

[yostar]

nope... if you use a single (1 or 2 outputs) legacy you'll set it up in your stb as standard or single

there are only 2 kinds - Legacy or DP for DN (not talking about the LNB for 118 nor linear)


trust me, my ex-wife is a doctor :tehe:

[Mavrick]

nope... if you use a single (1 or 2 outputs) legacy you'll set it up in your stb as standard or single

there are only 2 kinds - Legacy or DP for DN (not talking about the LNB for 118 nor linear)


trust me, my ex-wife is a doctor :tehe:

I'm not going to agree with this statment yet Yostar, I will have to ask a few "experts" to stop by and settle this, I still think Legacy & Standrad are two different kinds of LNB's and the diagram below is do-able with Stanndard LNB's...........

[WillDekkard]

If I understand this correctly the OP wishes to connect 3sats to 2 receivers using Standard(Legacy) Dual output LNBs.

The simplest switch setup would be to use 2 4x1 DiSEqC switches. Remember that when you have more than 1 receiver, it is very important to have your FTA sat system grounded. All cables(using 2.5GHz ground block), dishes, and switches(where applicable) need to be grounded using 10ga insulated copper wire to an earth ground.
5026
BTW: There are 3 type of DN LNBs - Legacy(which are the same as Standard), DishPro, & DishPro Plus.

[Mavrick]

Thanks Will, I didn't think the multi-switch was needed when connecting to only 2 receivers.
Yostar, you own me a beer, I almost had to re-call about a 1000 diagrams that I have used over the past few years......lol.

P.S.....Sorry Ottid for the hi-jack, but this is issue needed to be cleared-up in order to help you with your question.

[Mavrick]

Mav
The problem with your suggestion is it wont work for his setup. Because of trees, belonging to a neighbor, he has had to mount the 82/91 dish on the side of the house close to the front and the 110/119/129 dish is on the back of the house almost diagonally opposite the other dish. He only has 2 coaxes currently going to the back of the house and it would be a great deal of work to add additional coaxes. That is why I am wondering if the switch setup would work. I am not concerned with the 82/91 setup at all, just the 110/119/129 setup.

The 82/91 LNBs are Legacys and are also hooked up to Subs the 110/119/129 LNBs will be Standards. I already know that going to the 1000 series DN dishes is not an option because of the power hog LNBs they use and the need to use a switch with a power inserter. (would need to install additional coaxes to do this.

Ok Ottid, I think I have finaly wraped my head around your issue. The problem I see with your diagram is you can't cascade switches in that order (LNB -> DN SW21 -> 22KHz -> Diseqc-> STB), I personaly found this out this summer when I added a new sat to my own set-up, but I think I found a better answer......take one of the LNB's from the 91/82 dish and use it for the new 129 sat, then use a Twin LNB for 91/82 which would leave you with a spare LNB and only needing 4 switches insted of the 6 in your diagram. See picture below.......

[The Wufman]

The pic shown above by Maverick would be the simplest scenario for those 3 sats if you wish to keep it to only 2 coax lines running into house...As for not being able to view 2 different sats on 2 receivers with legacy lnbs;this is total b.s(sorry if I offend anyone)...I have used legacy lnbs in many setups with multiple receivers with no issues of any kind mentioned so long as proper grounding is in place;but then again that is with any type lnbs whether they be legacy/standard(dtv) or dp/dpp lnbs....the biggest reason for erractic switching issues or conflicts between receivers such as only being able to watch same polarities(v or h)as yostar mentioned is grounding issues(no ground or improper grounding)...grounding is essential in multiple receiver setups as some receivers have stronger transmitors than others therefore drawing more power than some other receivers do....Again for the simplest setup scenario i would go with the pic shown by Maverick for only 2 receivers with only 2 incoming lines into the house...JMO