3X4 Multi Switch (does it work as a diplexer also)

[bryan35]

Want to use a 3X4 Multi Switch with an antenna and dish connected. Does it work as a diplexer also? Could I just add diplexers at the rec/tv side?

Or do I have to add a diplexer after the sw21 switch(3X4 to sw21) and then a diplexer at the rec/tv side?

[fn59]

Run antenna cable into antenna port on 3x4 to combine sat/ant on one cable, then need a diplexer at other end to seperate sat/ant.

[bryan35]

That's what I was thinking. Read elsewhere that two diplexers were needed per line.

[fn59]

It has a built in diplexer. Never used the 3x4 myself, have a 9x8, but it's a powered switch. Only used the terrestial antenna on one set, didn't seem to lose much on the signal.

[bryan35]

Run antenna cable into antenna port on 3x4 to combine sat/ant on one cable, then need a diplexer at other end to seperate sat/ant.

Thanks for the info. I'll give it a try when I get a diplexer.

[Terryl]

Want to use a 3X4 Multi Switch with an antenna and dish connected. Does it work as a diplexer also? Could I just add diplexers at the rec/tv side?

Or do I have to add a diplexer after the sw21 switch(3X4 to sw21) and then a diplexer at the rec/tv side?

This all depends on the type of 3x4 switch, some 3x4'rs are for combining 3 LNBs only.

You need to look at the switch spec's, to see if it has an ANT input, or a Terrestrial antenna input, a normal Diseqc 3x4 switch will not pass the 40 to 900 MHz TV signals.

IF the switch has the correct input for a TV antenna, then you will need a diplexer at each TV set you want to run, but the more you the TV signal, the less TV signal you will have, some of the better switches have a DC path for adding an in-line preamp for the TV antenna.

A 3 way split on the TV signal will loose 9 dB, a 4 way split will loose 12 dB, this is a ton of loss in TV land.


You can add a diplexer to the output of the last switch, but remeber the more you add the less signal you will have, 1 diplexer = 3 dB, 2 diplexers = 6 dB, this may affect your satellite signals to the reciever/TV where your trying to add the TV signals to as well, it all adds up. (or is deducted from)

[bryan35]

This all depends on the type of 3x4 switch, some 3x4'rs are for combining 3 LNBs only.

You need to look at the switch spec's, to see if it has an ANT input, or a Terrestrial antenna input, a normal Diseqc 3x4 switch will not pass the 40 to 900 MHz TV signals.

IF the switch has the correct input for a TV antenna, then you will need a diplexer at each TV set you want to run, but the more you the TV signal, the less TV signal you will have, some of the better switches have a DC path for adding an in-line preamp for the TV antenna.

A 3 way split on the TV signal will loose 9 dB, a 4 way split will loose 12 dB, this is a ton of loss in TV land.


You can add a diplexer to the output of the last switch, but remeber the more you add the less signal you will have, 1 diplexer = 3 dB, 2 diplexers = 6 dB, this may affect your satellite signals to the reciever/TV where your trying to add the TV signals to as well, it all adds up. (or is deducted from)


The 3X4 multi switches I'll use have the ant input. You say the regular diseq switches wont pass the antenna signal. From what I'm reading the sw21 switch will only pass signal from 950 to 2150 MHz. Looks like I won't be able to set up the way I wanted to.

Just waiting for my diplexers to arrive and planning how to hook everything up.

[bryan35]

This all depends on the type of 3x4 switch, some 3x4'rs are for combining 3 LNBs only.

You need to look at the switch spec's, to see if it has an ANT input, or a Terrestrial antenna input, a normal Diseqc 3x4 switch will not pass the 40 to 900 MHz TV signals.

IF the switch has the correct input for a TV antenna, then you will need a diplexer at each TV set you want to run, but the more you the TV signal, the less TV signal you will have, some of the better switches have a DC path for adding an in-line preamp for the TV antenna.

A 3 way split on the TV signal will loose 9 dB, a 4 way split will loose 12 dB, this is a ton of loss in TV land.


You can add a diplexer to the output of the last switch, but remeber the more you add the less signal you will have, 1 diplexer = 3 dB, 2 diplexers = 6 dB, this may affect your satellite signals to the reciever/TV where your trying to add the TV signals to as well, it all adds up. (or is deducted from)


I have a 3 way splitter that has a 6db loss. That will help if I have to use it.