Lnb And Switch Combinations

Lnb And Switch Combinations Thanx To FA

Gives a good starting point as to what you will need

U need the right combo of LNB's and switches.

This document is directed to novice,and slightly experienced hobbyists.Its purpose is to help those in need of answers to basic switching setups;It is not directed to those involving 2 or3 types of LNB's to 5 receivers...you should already be blueprinted.


You must determine your setup and gear.Here we will try to get you started with the most efficient and reliable switches.

One LNB to one receiver..............no switch needed
One LNB to two receivers...............no switch needed(requires a DUAL output LNB)
Two LNB's to one receiver............This can be done with any one of the following; AB switch/2x1 diseqc/4x1 diseqc/22Khz switch/4x4 multiswitch

(1) A/B switch from wallyworld or Ratshack;works great,switches every time...you will need 2 cables run to switch. (NOTE! not recommended to switch with power on you could fry your LNB or stb)
(2) 2x1 diseqc switch;works reasonably well;antennae settings must coincide with switch inputs.
(3) 4x1 diseqc switch;Probably the most widely spread and unreliable switch on the market.Performance level is abysmal.Does NOT like 2 different types of LNB,long cable runs,water,humidity,or anything else.Best brand by far for a good price is Chieta,and Spaun for high end...better be for the money.
(4) 22Khz switch; Very reliable tone switch.Easily installed and reasonably priced.One line from each LNB to switch,and one line out to receiver.Highly recommended.
(5) 4x4 multiswitch; Very versatile switch that requires dual LNB's.It can drive up to 4 receivers,and is 22Khz operated as well.These were around in the old D*V days and have an excellent track record and are highly recommended.

Two LNB's to two receivers..........This is where multiple switches is required in 3 of 4 examples.

(1) 2x1 diseqc switch;2 required for this installation,as well as 2 dual LNB's.The outputs from each LNB will go to a separate 2x1 switch,and from switch to receiver.
(2) 4x1 diseqc switch;2 required for this installation,as well as 2 dual LNB's.The outputs from each LNB will go to a separate 4x1 switch,and from switch to receiver.
(3) 22Khz switch; 2 required for this installation,as well as 2 dual LNB's.The outputs from each LNB will go to a separate 22Khz switch,and from switch to receiver.
(4) 4x4 multiswitch; 1 required for this installation,as well as 2 dual LNB's.The outputs from LNB #1 will go to Sat A inputs,and the outputs from LNB #2 will got to Sat B inputs.Do not be concerned with the 18v and 13v allocation,as the switch "freezes" these voltages within the unit.Set 1 sat to 22Khz ON,and the other to OFF(in your settings).
This unit can drive up to 4 receivers.

Three LNB;s to one receiver...........As much as we hate to say so,the 4x1 diseqc switch is the simplest(although not the most efficient) switch for this job.As the cost of these has dropped,so has the quality.

Four LNB's to one receiver..........Again,reluctantly,the 4x1 diseqc is the simplest choice.


Two LNB's to three receivers..........4x4 multiswitch

Two LNB's to four receivers............4x4 multiswitch




1 LNB = 1 sat bird..but for ~~~~~~~~~~~ TV, most people want 2 satellites,the 110 and 119 birds reception on each receiver..



LNBF
1. Legacy:
a. single: called single legacy, one output.
b. dual: called dual legacy, 2 outputs.
c. twin: big fat lnbf, 2 outputs, has 2 SW21 switch built-in. (sw21 is not for FTA)
d. quad: big fat lnbf, 4 outputs, has 4 SW 21 switch built-in. (sw21 is not for FTA)
2: DishPro
a. single: called single DishPro, one ouput.
b. dual: called dual DishPro, 2 outputs.
c. twin: big fat lnbf, 2 outputs, has 2 independent Diseqc switch built-in (FTA-yes)
d. quad: big fat lnbf, 4 outputs, has 4 independent Diseqc switch built-in (FTA yes)

Dish Pro twin LNB gets both the 110 and 119 on 2 receivers..and no switches needed...

Dish pro LNB's cannot use legacy channel lists...need DP channel lists

sw21 switch are used with ~~~~~~~ receivers

disque switch is used with FTA receivers




DUAL LNB is for 1 satellite signal (example 110) and 2 receivers...TWIN LNB aka fatboy/fathead is for 2 satellites ( Example..110 and 119) AND 2 receivers .. there is much confusion about DUAL vs TWIN LNB's






For all who wish to use Dishpro lnbfs



Dishpro lnbfs are erroneously being reported as not usable with Fta receivers because of internal switch. this is not true. You can use them with no additional switch needed. The only time you will need to use an additional switch is when adding a second dish to your system. Pro lnbfs have a built in DISEQC switch not a sw21 as the legacy twin has. You can easily identify pro lnbfs by a large black D/P label. All that is needed to use this lnbf is to connect 1 cable from lnbf to rcver. Each output on this lnbf carries both 110 and 119 signals. The different outs are for connecting additional rcvrs. Load a modified dishpro channel list or modify your own list by using Gtools. To do this subtract all horiz. transps. from 25600. enter result as your new transp freq and change to vertical. IE. on sat 119 transp 6 is 12297h. doing the subtraction, you get 13303. So change transp 6 to 13303 and change h to v. Now you have 13303v And will be received dy dishpro lnbf's. To get a bit technical, the dishpro's use an osscilator that runs at 25600mhz. this is mixed with the horizontal transp freqs and new freqs are generated. If you should wish to add additional dishes to receive a third and even a fourth sat you must add a external 4x1 Diseqc switch. you must feed both port 1 and 2 with both(or in case of quad,2 )outputs. you can then add a third dish to port 3 and even a fourth to port 4. I hope this clears up the confusion.