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You don't control the satellite by the receiver in your home. The satellite is controlled by a the satellite operator which sends telemetry commands up to the satellite using a large dish antenna.

I think what you mean is: how can I use both receivers with a single LNB?

What you need is a splitter that will take the signal from the LNB and give two outputs to feed into the receiver boxes. That is a 1 to 2 way splitter.

I can talk to you from a technical perspective as I am a qualified Electronics Engineer, but you will need to locate a splitter device yourself.

If you use what is known as a passive splitter, this does not require any power. But, what it does, is to take the single, and divide it into two signals, this wil reduce the signal strength going to each receiver by half.

This might be a problem. The RF signals are quite weak, and the question is, can your receivers accommodate a signal that is half the strength it was before.

There can also be interference generated as you watch one channel on one receiver and another channel on the second receiver.

Ideally, what you need is an active splitter, or distribution amplifier.

An active splitter, or distribution amplifier will take the signal from the LNB, split it and amplify it so that the strength of the signal being fed to the outputs remains the same as the signal coming into the input from the LNB.

These are readily available for terrestrial television and you should be able to find them for the much higher frequency satellite signals.

The signal coming down from the LNB is often referred to as IF for Intermediate Frequency. The very high frequency signal being received by the dish antenna is difficult to transmit over any length down a cable, so what they do is convert the frequency down to a much lower frequency which is easier to handle and distribute down a cable, this is the IF signal.

So what you should be looking for is an IF Distribution amplifier , or IF active splitter.

As the unit has to amplfy the signal, it will require a power source.

It is good practice to place the active splitter/distribution amplifier close to the LNB to reduce the length of cable from the LNB to the distribution amplifier which will prevent the signal degrading too much.

A very detailed explanation with a lot of techical terminology, but hopefully this will set you on your way to locating the type of splitter/distribution amplifier you need.

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15y ago
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15y ago

The following explaination is all well and good, but the main reason that you can't use a single LNB by itself and connect two receivers together to it is because the LNB switches between either the horizontal or vertical polarity by voltages supplied by the receiver. What you need is a splitter that will take the signal from the LNB and give two outputs to feed into the receiver boxes. That is a 1 to 2 way splitter.

I can talk to you from a technical perspective as I am a qualified Electronics Engineer, but you will need to locate a splitter device yourself.

If you use what is known as a passive splitter, this does not require any power. But, what it does, is to take the single, and divide it into two signals, this wil reduce the signal strength going to each receiver by half.

This might be a problem. The RF signals are quite weak, and the question is, can your receivers accommodate a signal that is half the strength it was before.

There can also be interference generated as you watch one channel on one receiver and another channel on the second receiver.

Ideally, what you need is an active splitter, or distribution amplifier.

An active splitter, or distribution amplifier will take the signal from the LNB, split it and amplify it so that the strength of the signal being fed to the outputs remains the same as the signal coming into the input from the LNB.

These are readily available for terrestrial television and you should be able to find them for the much higher frequency satellite signals.

The signal coming down from the LNB is often referred to as IF for Intermediate Frequency. The very high frequency signal being received by the dish antenna is difficult to transmit over any length down a cable, so what they do is convert the frequency down to a much lower frequency which is easier to handle and distribute down a cable, this is the IF signal.

So what you should be looking for is an IF Distribution amplifier , or IF active splitter.

As the unit has to amplfy the signal, it will require a power source.

It is good practice to place the active splitter/distribution amplifier close to the LNB to reduce the length of cable from the LNB to the distribution amplifier which will prevent the signal degrading too much.

A very detailed explanation with a lot of techical terminology, but hopefully this will set you on your way to locating the type of splitter/distribution amplifier you need.

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Q: Directv single LNB antenna you have 2 receivers with different accounts you would like to hook them both to a splitter so that you could choose which one would control the satellite?
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