Using one cable for two dishes and receivers

[anacondama]

Note: CS012 LNB switches are now obsolete but we list an alternative in the "Shop".

Use two of our CS012 LNB switches. Fit one outside in a waterproof housing. Connect the A and B outputs each to an LNB. Connect the common connection of the outdoor CS012 to the common connection on the CS012 switch indoors near the receiver. Connect the receiver LNB inputs to the respective A and B ports on the switch.

Run a thin insulated wire from the CS012 near the dish and connect it to the indoor CS012.

If one of the receivers has a 12 volt switchable output, this may be connected to the red wire.

Otherwise, to control the CS012 switches you must connect a 4 to 12 volt + DC voltage to the red wire via a switch. The negative side of this supply must be connected to the outer nut of one of the F connectors (or to a receiver chassis).

[zoran89]

Re: Using one cable for two dishes and receivers

This will not work OK, you cant conect two recivers to same LNB if LNB isnt dual LNB.

[anacondama]

Re: Using one cable for two dishes and receivers

yes it works
it's used also with receiver/dongle ... tested by some friends
i will put a tutorial and the the device's schematic

This will not work OK, you cant conect two recivers to same LNB if LNB isnt dual LNB.

it isn't the same LNB every one has a satellite brodcasting

[zoran89]

Re: Using one cable for two dishes and receivers

Let say that this is one LNB for Astra 19.2E and other for Hotbird 13E. Wath would hapend if both reciver whant to watch Hotbird but the diferent TP. Then you would get conflict.

[anacondama]

Re: Using one cable for two dishes and receivers

Let say that this is one LNB for Astra 19.2E and other for Hotbird 13E. Wath would hapend if both reciver whant to watch Hotbird but the diferent TP. Then you would get conflict.

you're right
but who want to make this installation he should know that every reciever have to be connected to one lnb and recieve what is broadcast on
following your example the first one should receive hotbird and the other astra or vice versa but not two at the same time
this installtion is specialy who want to use it with 2 receiver or receiver/Dongle and dont have how to add new cable if there slot in the wall

[satman72]

Re: Using one cable for two dishes and receivers

Is possible to have one cable on two receivers and watch two differents transponders. You must use an Unicable LNB and also Unicable compatible receivers. Here you'll find details on Unicable tecnology:
_http://uk.ask.com/wiki/Unicable
it is used into Sky Italia Boxes to record and watch different channels using just one cable from roof to home.

[zoran89]

Re: Using one cable for two dishes and receivers

Maybe, I dont know anything about this Unicable but I know very well about normal setups and this is just not posible.

[satman72]

Re: Using one cable for two dishes and receivers

Maybe, I dont know anything about this Unicable but I know very well about normal setups and this is just not posible.

Yes if you use normal LNBs it is impossible you'll have conflicts, if you'll mount Unicable LNB it will work fine.

[peremacedonia]

Re: Using one cable for two dishes and receivers

so isnt posible to use 1 lnb to 2 receivers?
I was thinking to connect second receiver bud i dont know is my lnb is dual lnb or not.

[satman72]

Re: Using one cable for two dishes and receivers

so isnt posible to use 1 lnb to 2 receivers?
I was thinking to connect second receiver bud i dont know is my lnb is dual lnb or not.

To have both receivers works well you need or a dual out LNB and 2 separate cables one for each receiver (from dish to receivers), or if your receivers are able to handle Unicable LNB, an Unicable LNB on dish and connect the exit from one receiver to input of other receiver, watch the link I've posted up to know more about Unicable tecnology.
Is easy to check if your LNB is dual or not, if it is dual has two out connections.

[peremacedonia]

Re: Using one cable for two dishes and receivers

Ok but why it is not posible
it was conflict between v and h or what

[anacondama]

Re: Using one cable for two dishes and receivers

See Here About The Installation Schematic

[zoran89]

Re: Using one cable for two dishes and receivers

Ok but why it is not posible
it was conflict between v and h or what

No it isnt problem in polarisation problem is that you cant get two freqency using on cable.

It is like you whant to run 220V 50Hz and 110V 60Hz Electricity using one cable. It just isnt posible. It is posible to have 555+ recivers on one cable but all of them need to watch same freqency so if it is S2 there can be up to 20 or 30 channels, but if only one change to other freqency everyone will lost signal.

[satman72]

Re: Using one cable for two dishes and receivers

Ok but why it is not posible
it was conflict between v and h or what

Well the problem is this the frequency band each receiver can receive is around 1 ghz large, the band transmission of all satellites is large 2 ghz, so the LNB divides in two all this band so to have 2 bands of 1 ghz. To do this it uses 22 khz tone switch so when you change channel on your receiver, it will send the tone if you'll set a channel on high band (from 11,800 ghz to 12,750 ghz) and will not send the tone if you'll set a channel on low band (10,700 ghz to 11,800). Also to increase the trasponder number into this band, satellites transmitts their tp in different polarizations (Vertical and Horizontal). So to reduce the frequency's step from a tp to other (if the tp are closly you can avoid interferences using opposite polarization), some satellites uses for some tp the same frequencies in both polarizations like Hispasat. Now to switch from the Vertical dipole to Horizontal dipole enclosed into LNB they uses a voltage switch (14-18 V). So when you watch a channel on your box you must send the right values to LNB so to let it to convert and send the right frequencies to your box. For this reason you can't connect more then 1 receiver at same LNB output, try to immagine if you're watching a channel on low band on vertical polarization and other your receiver a channel on high band on horizontal polarization... the LNB will receive different command signals so one of two box will recive not the right band from LNB and will have no signal. I hope to have cleared it to you.
Regards.

[peremacedonia]

Re: Using one cable for two dishes and receivers

so you can watch only chanels on same polarization or frequency
if you change chanel on other polarization then you lost signal on your other dreambox