Ask The Trades - Print Page

Ask The Trades
https://www.askthetrades.co.uk/cgi-bin/yabb/YaBB.pl DIY Forum >> Alarms, Phones, Aerials, CCTV & Datacomms >> Loft Aerial - Amp : no power available https://www.askthetrades.co.uk/cgi-bin/yabb/YaBB.pl?num=1503993276 Message started by Sandy on Aug 29^th, 2017, 8:54am

Title: Loft Aerial - Amp : no power available
Post by Sandy on Aug 29^th, 2017, 8:54am

Hi all, just looking for some information, but can't seem to source it fully.

Just moved into a new house (new build) and looking to connect up the aerial/tv's. 3 aerial sockets around the house (lounge, dining room and a bedroom) all fed up via standard coax into the loft, coiled up ready for me to connect to aerial.

Aerial is now installed and in the correct orientation, but I need to connect the 3 leads into 1 aerial, for which I believe I need an amp of some kind. I have no power in the loft and would prefer not to have to start looking at getting a spark in to run me a power line. Therefore, I think I've got a solution.

http://www.screwfix.com/p/labgear-line-powered-digilink-amplifier-kit-2-inputs-6-outputs-with-psu/64973?_requestid=88316

I've read some reviews of this device and seems that it fairs pretty good, doesn't require a dedicated power supply and seems straight forward to install. F-Conn from aerial to input, then 3 feeds via more F-Conns to outputs. Am i right in thinking this is all? Nothing more required, or do I miss something basic? I'm no expert, but my thinking is that it takes the very little power it needs via the Coax feeds, is that right?

Thanks for the input.

Title: Re: Loft Aerial - Amp : no power available
Post by Lectrician on Aug 29^th, 2017, 4:54pm

These are very popular at the moment. The power supply goes behind one of your TV's, and powers the dist-amp via the dedicated power input, sending 12v DC up the coax while the UHF TV signal comes down. DC doesn't affect the TV reception.

Some TV's have a 12v output which can be turned on in the settings to power this type of thing, but most will kill the 12v when turned off, so annoying if you have 3 TV's in use.