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View Full Version : Where to get power supply for multiswitch


kirecoma
09-19-2006, 12:31 PM
Bottom line is that I need to know where to get a power supply for a multiswitch that has a 24v coax connector for the power supply input.

I have a 5 year old 18 in round dual LNB dish that is run through a 2x4 multiswitch I then ran two cables to a dual tuner samsung directv tivo and another cable to a old panasonic single tuner receiver.

I have been occasionally getting a searching for signal on one of the two tuners on my tivo receiver. The problems comes and goes from time to time. This setup has worked fine for about 9-12 months until recently. The only thing I can think is that it is the multiswitch. I have a cheap multiswitch that I bought off ebay that is non-powered but has a coax input for a 24v power supply. I'm thinking that if I would power the mutliswitch the problem would go away. But I can't find a power supply for it. I've never seen a power supply that outputs the power through a coax fitting. Does anyone know where I could get one?

Or if anyone knows what another possible solution is please let me know. (I have searched around and have mostly read that the multiswitch is th eproblem)

John T Smith
09-19-2006, 12:41 PM
The power to the LNB is provided, through the coax, by the DirecTv receivers

I would PERSONALLY never attach any other power to a multiswitch, since my OPINION is that would create a risk of harming either the LNB or the receivers... or both

If you think the multiswitch is bad... why don't you just buy a new one?

JimSpence
09-19-2006, 03:59 PM
Multiswitches that have optional power only use it if you have long runs. It is to ensure that the switching voltages (13v/18v) are sufficient to operate the LNBs. The switching voltages supplied from the receiver may not be suffient to do the job.

I would say that if the switch has a power input then it is isolated from harming either the receivers or the LNBs.

The power supply that comes with switches is usually a power block that has an F connector adapter to fit the coax power input on the switch. You need to see what current requirements the switch needs and match a supply to that.

I think that replacing the switch is the better option unless your lines are over 100' from dish to switch.