Two recievers from one coax cable (Dish Network)???

I have a Dish Network system installed and my house is prewired with three outlets. I have two dishes, one for American channels and second for International channels (1 dual LNB second single LNB). Now, 3 recievers work fine as it is. I want to add fourth reciever from one coax cable downstairs which is prewired. Since the house is prewired, I do not want to go through all troubles to add a fourth line from the switch. See the diagram... Now I understand that you cannot directly connect two recievers to one coax cable due to the 18V/14V and LHCP/RHCP. But there has to be some way to do this by adding additional multiswitch or something like that.


What I have tried: Purchase a multiswitch from Radioshack (SKU 16-2571), and connect the output from "To Receiver" in switch to the Input on the new multiswitch and connect 2 recievers from there.

I also tried connecting the "To Additional Switch" from the switch to the Input on the new multiswitch and connect 2 recievers from there.

I can't remember correctly, but one of these does not work at all and the second one gives me the American channels, but no INternational channels on the recievers.


Does anyone know how I can tackle this issue?

Thanks

Ok, I don't get involved with the Dish Network (E*) installs as we have an outside contractor we use for E* installs, but I will try to aim you in the right direction. If you are impatent as to what the answer is; it will come down to you need to run another cable. Here's why.

The key is the devices to connect multiple receivers are called switches, multiswitches specifically, not splitters. Here is how a multiswitch works in general terms. Any E* techies out there can get more specific if needed.

From the dishes there are three sources we will call source A, source B and source C. In your diagram we will say that source A and source B are from the Dish 500 and source C is from the 300.

If you notice all three sources connect to the multiswitch and the connections are assigned by the design of the multiswitch to have source A the bottom connection, source B the middle connection and source C the top connection according to the way you have drawn the diagram.

Now when receiver 1 is tuned to a channel that it knows is on source A, the receiver will send a signal up to the multiswitch that will cause the multiswitch to switch the connection for receiver 1 to the connection for source A. If you tune receiver 1 to a channel it knows is on source B, it will send a signal to the multiswitch to switch the connection for receiver 1 to the connection for source B. If you tune receiver 1 to a channel it knows is on source C, it will send a signal to the multiswitch to switch the connection for receiver 1 to the connection for source C.

The same is true for each receiver connected to the receiver connections of the multiswitch. Now as to the details of what the signal is to cause the multiswitch to switch the receiver's connection, it is a combination of +18V, +14V and tones of specific frequencies, but the specific signal for any given source does not matter for the purpose of this explanation. Just know there is a unique signal sent by each receiver to the multiswitch to tell the multiswitch which source it needs to be connected to. Obviously, well maybe not until now, two source signals can not be on a single wire. That's why you have to use a separate wire for each receiver.

Now it is possible that hooked up per your diagram you would be able to receive channels on both reveiver 3 and 4 which were requested from the same source. We run into this all of the time where someone has used a satellite level splitter (2 GHz) to try to connect two receivers. At first they think it has worked only later to find the channels they can get are sporadic. As can be seen the only time when one of the receivers 3 or 4 could not get a channel would be when they were requesting channels that required different sources. So sometimes it would work on a given channel and sometime it would not. Then we get called to run the extra cable which was what the people was trying to avoid in the first place.

I could have just said you will need to run a separate cable, huh?

After all that was said. There is no way to do what you want. You will have to run another line to the new location.

If you have DishPro Plus LNBs or a DPP44 switch you can use a dish separator to divide one coax into two. This is recommended only for units with dual tuners but someone on one of these forums insisted that it worked for two separate receivers. If you don't have that series LNB or that particular switch then it probably not worth the cost. Coax is much cheaper.

I can tell you without a doubt, that you CAN NOT run two seperate receivers off of a DP seperator. The single receivers do not have the programing to be able to work with a seperator.

Thanks all for your help :bowdown: ... even though this was what I did not want to hear, thats what it is.

Currently I am working with the setup by connecting and removing the cabel from one receiver to another depending on where I want to watch it... crude, but okay until more cable is run...

Thanks all for your help :bowdown: ... even though this was what I did not want to hear, thats what it is.

Currently I am working with the setup by connecting and removing the cabel from one receiver to another depending on where I want to watch it... crude, but okay until more cable is run...

Rather than disconnecting and reconnecting the feed cable, you can use a simple AB-switch in reverse. One line in and two lines out. Even could get one with a remote.

I have never seen that work. You would need one that could pass power.