i've been racking my brain all evening trying to figure out a way to have 5 LNB's with 2 receivers and i cant think of or find a solution. maybe someone here has some insight on making this happen.
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i've been racking my brain all evening trying to figure out a way to have 5 LNB's with 2 receivers and i cant think of or find a solution. maybe someone here has some insight on making this happen.
If all your lnb's are legacy dual you can use 4 x 1 diseqc and sw21 combination.
that's how I did itQuote:
Originally Posted by fn59
Or an 8x1 no sw21
He needs to use it with two receivers so a 8x1 switch wont work, an 8x2 would but no one makes one that will work for US OEM LNB type setups (Dish or Bell LNB's) for 5 satellite inputs, (frequency response problems) so it all depends on the types and brands of LNB's he has in use.
All the LNB's should be of the same type and brand, mixing them will cause switching problems.
Use all single satellite dual output LNB's and you should be fine, something like 5 standard LNB single's run into a 6 to 8 satellite LNB input to 4 receiver output switch, but it has to be an externally DC powered one or it will drag down the receivers LNB power supply.
There are numerous ways to connect 5 LNB's to 2 receivers, but it would help if you listed what type of LNB's and switches you have ?Quote:
Originally Posted by buckeye144
Im using a dish pro 500 and a dish 1000.2.
I had 5 lnbs but the 5th would overheat the receiver probably cuz long lines between lnbs and switches.if I set up again it will b short lines everywhere possible.or even a powered switch.129 hard to get from here
Wont work, too many switching problems with two DPP type LNB's that have internal switches set to their own ports, the DP 500 uses Diseqc ports #1 and #2 with #3 set aside for an external DP type LNB, (Dish 500 with a single dual satellite LNB) the same for the D1000 LNB except it is set for #1, #2 and #3 with #4 set aside for an external DP type LNB.Quote:
Originally Posted by buckeye144
Now some may have got it to work using an 22 KHz switch but most will cross talk (22 KHz coax shield leakage) and cause major hair loss.
See the Diseqc switch inside the Dish Pro LNB's uses a 22 KHz signal supplied by the receiver to switch between the available internal ports, these internal switch ports can not be turned off, so using an external switch will only complicate things.
As I stated above the best way to try and use a 5 satellite setup is with 5 single DP LNB's and an external DC powered switch, the powered switch is needed to run the 5 LNB's as 95% of the FTA receivers out there can not supply the necessary DC current to run more then 2 of the DP pro LNB's at the same time. The Dish 1000 LNB needs over 700 mA to run right, most FTA receivers can only supply 500 mA at most.
This is why a ton of FTA receivers have power supply burn out problems, the user's are tying to run too many LNB's at once. This power problem may take a while to show up but it will cause serious damage to the receivers LNB power supply.
The best problem free setup is to use 5 single satellite dual output LNB's into a 6 or 8 input to 4 output DC powered switch.(they don't make a 5x4)
Each LNB needs to have dual outputs as the switch needs to use them for the other receivers, this means that the switch will have 10 LNB (or more) inputs (for 5 satellites) to 4 receiver outputs, as the switch will multiplex the signals so all attached receivers will be able to access all the satellites at once.
This is the only way that has been proven to work over time without switching problems.
The switch will be setup something like this.(depending on the LNB's used)
SAT 1 input A and B, or 18V,14V or 22 KHz on, 22 KHz off.
SAT 2 input A and B, or 18V,14V or 22 KHz on, 22 KHz off.
SAT 3 input A and B, or 18V,14V or 22 KHz on, 22 KHz off.
SAT 4 input A and B, or 18V,14V or 22 KHz on, 22 KHz off.
SAT 5 input A and B, or 18V,14V or 22 KHz on, 22 KHz off.
As you can see there are 10 inputs, this so any of the attached receivers can select any of the satellite's and their transponders as needed. This setup is only needed with more then one receiver.
And the switch needs to be an externally DC (or some have AC power) powered switch, as the FTA receiver is designed to power no more then 2 LNB's (and a switch) on at the same time.(you only have 500 mA to work with)
is this not a 5x4 powered switch EMP Centuri 5 x 4 powered Diseqc switch
Attachment 26971
Not......It's got 4 inputs for two dual LNB's (14/18 volt switching or 22 KHz)and one input for a off air TV antenna
Best option and most trouble free is to spend a few extra bucks and buy a powered EMP-CENTAURI Multi-switch. They come in various configurations. I used a EMP-CENTAURI Multi-switch with 9 inputs and 8 outputs. Keep in mind each input is 1 lnb line each lnb has 2 outputs so you would need a 10x8 or 10x4 if they make them.
If you're using all DP Plus LNB's you can cascade 2 DPP 44 switches.
I got lazy and settled for all 5 on one receiver and only 4 on the other using a DPP44 and SW21.
I have the 1000.2 on the DPP44 taking 119 to port 1, 110 to port 2, 129 to port 3, and the dish 500 one line in for 91 to port 4. Power inserter installed. I have those 4 LNB's going to 2 receivers then brought one line out of the DPP44 to SW21 then added 82 off the 500 to that SW21.
So I have 2 receivers running 110/119/129/91 and one receiver running 110/119/129/91/82
I know that does not exactly give you what you're looking for, but it's an option and if you cascade 2 DPP44 switches you can get it done.
Why cascade two DPP44's?? When the DPP44 switch will run 3 receiver's (DPP power inserter must be on the #1 port by it's self) just fine.
Also some receivers and setups do not like to work very well with a SW21 and a DPP 44 switch attached on the same line.
Like I have said some have got lucky and got it to work and some have pulled their hair out trying to.
See most DPP LNB's with internal switches can only go to Diseqc port #4, after that they quit, and they also could be confused by the commands for the SW21 what uses 22 KHz on and off to switch between two single LNB dishes, also the SW21 is a legacy product and may not work too well with the newer DPP type stuff.
All you can do is try it out, if you get lucky then great, if you suffer from too much hair loss the we can link you to some Rogain suppliers.
Anyway you try it be sure to ground everything, a good solid ground to all attached switches and dishes will help.