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Banana?
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#195045 4-Apr-2016 09:06
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Hi,

 

 

 

I have just installed a Matchmaster 10MM-DDA24 Distribution amp at home as part of the Sky cord-cutting.

 

I have run the cable from a new UHF antenna to it (and connected to Port B - TER) and it feeds out fine to the three TVs/STBs I have connected to it. This works fine.

 

I also have a satellite cable going to the unit - it comes from a Sky dish, with a four-cable LNB. The issue is when I connect the sat cable to port A on the DDA, the power light goes out (and subsequently, the DDA stops working - no Terrestrial signal getting through, as would be expected when you turn the power off). Unplug the Sat cable, all comes good again.

 

At the moment, it isn't an issue, as Terrestrial is working fine, and I don't really need satellite coverage, but I'm a geek, and the cable is there, why can't I combine?

 

Has anyone used one of these, and seen this behavior, or could you let me know what I need to do to connect both SAT and TER up at the same time?

 

 

 

Note: the switches are set: Sep Sat-Ter and B-Ter 14V off.

 

I've sent Matchmaster a question, just wondering if any of you had used one of these.


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Master Geek


  #1525580 4-Apr-2016 09:52
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Yes I have one these presently. In order to power LNB place cable  input of tunner one from MY SKY decoder and plug in one of outputs of the amplifer and then make sure you have plug the Sat - TER feed to separate rather than combined. The Sky decorder or freeview box will supply the power to LNB so no requirement for power injector unless you are powering up a mast head amp.




Banana?
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  #1525586 4-Apr-2016 10:02
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Thanks.

 

This unit has a power pack (18V I think) and has to be powered on for the distribution to work (there is the Green LED in the top right). When I connect the cable from LNB to the A-SAT socket, the Green LED goes out (and the unit is then not powered so the distribution ports do not work for TER).

 

At present I have no satellite tuners, so that could be the issue, but I would have thought the 18V going into the unit would power the LNB without needing a tuner to do it?


 
 
 
 


64 posts

Master Geek


  #1525614 4-Apr-2016 10:35
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You do need a sat tunner in circuit to complete it which be why the power light going out. If power light still goes out after you have sat tunner in circuit then their be fault with the amp.




Banana?
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  #1525618 4-Apr-2016 10:40
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Ah OK, I was wondering about that - thanks.


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  #1525762 4-Apr-2016 13:18
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trig42:

 

Thanks.

 

This unit has a power pack (18V I think) and has to be powered on for the distribution to work (there is the Green LED in the top right). When I connect the cable from LNB to the A-SAT socket, the Green LED goes out (and the unit is then not powered so the distribution ports do not work for TER).

 

At present I have no satellite tuners, so that could be the issue, but I would have thought the 18V going into the unit would power the LNB without needing a tuner to do it?

 

 

When you connect the LNB to the A-SAT input socket, the unit is now expecting to be powered by a satellite receiver, (power pack is no longer needed) so as you have no satellite receiver connected the unit is not being powered.

 

To use it just for terrestrial distribution you'll need to use it as you have been with the power pack to supply power with nothing connected to the A-SAT input.


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Ultimate Geek


  #1525922 4-Apr-2016 17:51
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Incorrect tangerz - power supply should be on all the time, not all satellite receivers can output the required current to power both the multiswitch and the LNB.

It can and has been done but not recommended due to possibility of frying the power supply in your receiver


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Ultimate Geek


  #1525955 4-Apr-2016 19:27
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illicit:

 

Incorrect tangerz - power supply should be on all the time, not all satellite receivers can output the required current to power both the multiswitch and the LNB.

It can and has been done but not recommended due to possibility of frying the power supply in your receiver

 

 

 

 

I would have thought so too but here is a grab of the (larger) 30MM-DDA28

 

 

 

Click to see full size

 

 

 

 

 

 

 


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