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<blockquote data-quote="OldBen" data-source="post: 734904" data-attributes="member: 194242">Having just done &quot;the knowledge&quot; to work out multiswitches myself, let me see if I can give something back and help out. Will leave the dish size question to someone else, along with the LNB type being forced to a Quad, I thought the large dishes had C120 LNB's and they came in most flavours of LNB (not sure about Octo. What model is it?If you have a quad, you can have 4 feeds to 4 single tuner receivers, if the dreamboxes are dual tuner you can feed 2 dual tuner boxes. So the question is do you want 6 28.2 feeds for 3 dual tuner dreamboxes? If yes you need a multiswitch, if no you can run separate feeds from the quad as you do with the octo today. As you have an octo today and based on your text above it sounds like you have 2 dual tuners and a single, so need 5 outputs from the 28.2 dish?If you fit a quattro to the new dish, you can put in a, multiswitch (e.g 5 in 8 out) and have 8 outputs that can be individually switched so up to 8 tuners, so if you need 5 or more outputs you are fine. The Quattro has 4 outputs, but these are fixed to high vertical, high horizontal, low vertical, low horizontal. The multiswitch effectively just connects the voltage/polarity the receiver selects for the transponder it wants to the right connection, so you can gave 8/12/16/24/32+ outputs from one dish.If the dish really does only support a quad, there are a limited number of switches that support the 22Khz tone required in the switch to select LNB polarity. So it asks each of the 4 quad LNB's to be high vertical, high horizontal, low vertical, low horizontal as they would be in a quattro. Antiference and EMP Centauri are the two I am aware of that can work this way.Hope that helps. Paul.</blockquote>

[QUOTE="OldBen, post: 734904, member: 194242"] Having just done "the knowledge" to work out multiswitches myself, let me see if I can give something back and help out. Will leave the dish size question to someone else, along with the LNB type being forced to a Quad, I thought the large dishes had C120 LNB's and they came in most flavours of LNB (not sure about Octo. What model is it? If you have a quad, you can have 4 feeds to 4 single tuner receivers, if the dreamboxes are dual tuner you can feed 2 dual tuner boxes. So the question is do you want 6 28.2 feeds for 3 dual tuner dreamboxes? If yes you need a multiswitch, if no you can run separate feeds from the quad as you do with the octo today. As you have an octo today and based on your text above it sounds like you have 2 dual tuners and a single, so need 5 outputs from the 28.2 dish? If you fit a quattro to the new dish, you can put in a, multiswitch (e.g 5 in 8 out) and have 8 outputs that can be individually switched so up to 8 tuners, so if you need 5 or more outputs you are fine. The Quattro has 4 outputs, but these are fixed to high vertical, high horizontal, low vertical, low horizontal. The multiswitch effectively just connects the voltage/polarity the receiver selects for the transponder it wants to the right connection, so you can gave 8/12/16/24/32+ outputs from one dish. If the dish really does only support a quad, there are a limited number of switches that support the 22Khz tone required in the switch to select LNB polarity. So it asks each of the 4 quad LNB's to be high vertical, high horizontal, low vertical, low horizontal as they would be in a quattro. Antiference and EMP Centauri are the two I am aware of that can work this way. Hope that helps. Paul. [/QUOTE]

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